جعفر هادي عبود المياح

السيرة المهنية

CURRICULUM VITAE
Name: Jaafar Hadi Abboud (J.H. ABBOUD)
Current Position: Associate professor–Benghazi University–Benghazi–Libya (from 1996 until now)
Previous position : Lecturer - University of Technology – Baghdad- Iraq (from 1994 to 1996)
Experience: 20 year in teaching, researches, and supervision of under and post graduate students
Date and Place of Birth: Kut - Iraq, 18.7.1958
E – mail : jhabboud@yahoo.com, Tel: 00218914344073
Nationality: Iraqi
Marital Status: Married
Current Address: Department of Mechanical Engineering, University of Benghazi, Benghazi, Libya
P.O.Box 1308
QUALIFICATIONS:
1- B.Sc. in “Production Engineering & Metallurgy” University of Technology - Baghdad- Iraq,1980
2- Higher Diploma in “Metallurgical Engineering” University of Technology - Baghdad- Iraq (1981 -
1982).
3- Master Degree (MSc) in “Metallurgical Engineering” University of Technology -Baghdad -1983
* Topic of Dissertation: Development of Spinodal Alloys as Substitute to Cu - Be Alloys.
* Supervisor: E. S. Dwarakadasa, Department of Metallurgy, Indian Institute of Science, and
Bongalore, India.
4- Ph.D. in “Physical Metallurgy”, from Imperial College of Science, Technology, and Medicine, 30
September 1990, London.
* Topic of Dissertation: "Laser Surface Alloying of Titanium with Metallic and Non - Metallic
Additions.
* Supervisor: D.R.F. West, Professor in Physical Metallurgy, at Imperial College, Department of
Materials, London SW 7 2 BP
5- Diploma of Imperial College (DIC) - 15 August. 1990.
EXPERIENCES:
1- Research Experience:
July - 1990 to October 1994 working at Imperial College, Department of Materials, as a research
associate doing researches in the following topics: -
(1.1) Using high power CO2 lasers in surface treatment of metallic and non metallic alloys. Example
of these methods include laser surface melting, alloying, cladding, and ceramic particle injection. The
objectives are to modify the surface composition and structure and make it more resistance to wear,
erosion, corrosion and oxidation.
(1.2) Experience in using the microscopy for microstructure study and phases identification, such
Optical, Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM) and
STEM, X-ray Diffraction EDS and WDS Analysis.
(1.3) Surface properties assessments such as oxidation, wear, erosion and corrosion.
(1.4) Mechanical property assessments such as tensile test, fatigue test, and creep tests.
2- Teaching Experience:
(2.1) From December 1994 to October 1996: lecturer in the University of Technology Baghdad -
Iraq, Teaching the followings:
Heat treatment of ferrous and non-ferrous materials.
X-Ray Diffraction and Non Destructive Testing
Materials science, Engineering Materials, and Advanced Materials.
(2.2) From 28 November 1996 Lecturer in Garyounis University (now Benghazi University),
Benghazi - Libya, Department of Mechanical Engineering, teaching the following courses for the
undergraduate and post graduate students.
1- Materials Science and Engineering Materials for undergraduate students
2-X-Ray Diffraction and Non Destructive Testing (postgraduate students)
3- Static and strength of materials for undergraduate students
4- Metallurgy of welding and casting (postgraduate students)
5- Advanced Materials Science (for postgraduate students).
PUBLICATIONS:
During the MSc period (1981-1983), Baghdad, Iraq:
1- J.H. Abboud and E.S. Dwarakadasa, Effect of a 1% Al or Si addition or thermal hardening due to
spinodal decomposition in Cu-9Ni-6Sn alloy, Engineering Technology,1 (1983), Baghdad.
2- J.H. Abboud and E.S. Dwarakadasa “Modification of the spinodal hardening in a Cu-9Ni-6Sn alloy
by 0.1 wt% Si or Al addition” J. Mater, Sci. Lett. , 2 (1983) 233 - 235.
3- J.H. Abboud and E.S. Dwarakadasa “Scanning electron microscope studies of fractures in
spinodally hardened Cu-9Ni-6Sn alloys” J. Mater. Sci. Lett. 4 (1985) 1111-1114.
During the PhD period (1986-1990), Imperial College, London:
4- J.H. Abboud and DR.F. West, “Ceramic metal composites by laser surface treatment”, Mat. Sci.
Tech., 5(1989) 725.
5- J.H. Abboud and D.R.F. West, “Laser surface alloying of titanium with aluminum”, J. Mat. Sci.
Lett. , 9 (1990) 308-310.
6- J.H. Abboud and DR.F. West, “Processing aspects of laser surface alloying of titanium with
aluminum Mat. Sci. and Tech., 7(1991) 353.
7- J.H. Abboud and D.R.F. West, “Laser surface alloying titanium with silicon”, surf. Engg. Vol. 8-
10, (1991).
8- J.H. Abboud and D.R.F. West, “Microstructures of titanium injected with SiC particles by laser
processing”, J. Mat. Sci. Let. , 10(1991) 1149.
9- J.H. Abboud and D.R.F. West, “Martensite formation in Ti-Al alloys produced by laser surface
alloying, Mat. Sci. and Tech., 7(1991) 827.
10- J.H. Abboud and D.R.F. West, (Microstructures of titanium - aluminides produced by laser
surface alloying”, J. Mat. Sci. 27(1992) 4201-4207.
11- J.H. Abboud and D.R.F. West, “Oxidation of titanium - aluminides produced by laser surface
alloying”, J. Mat. Sci. Lett. 11(1992) 1478-1482.
During the postdoctoral period (1990-1994), Imperial College, London:
12- J.H. Abboud and D.R.F. West, “Laser surface melting of Ti-10V-2Fe-3Al alloys”, J. Mater. Sci.
Lett. , 11(1992) 1322-1326.
13- R. Reed, J.H. Abboud and D.R.F. West, “Process modeling of the laser surface treatment of
titanium with aluminum”, Proceedings of International Conference of Laser Advance Materials
Processing - Science and Applications, HIVE Nagaoka, Nagoka, Niiggata, Japan, ed. by A.
Matsunawa and S. Katayama, 7-12 June 1992.
14- J.H. Abboud and DR.F. West, “Titanium / Ceramic composite produced by laser processing”
Seventh Word International Conf. on Titanium, San Diego, California, 28 June - 2 July 1992.
15- J.H. Abboud and DR.F. West, “In situ formation of Ti-TiC / Composite by laser melting” J.
Mater. Sci. Lett. , 11(1992) 1675-1677.
16- J.H. Abboud and D.R.F. West, and R.H. Hibberd, “Properties assessment of laser treated titanium
alloys”, Surf. Eng. 9 (1993) 221-224.
17- J.H. Abboud and D.R.F. West, "Titanium - aluminide composites produced by laser melting”,
Mat. , Sci., Technol., 10(1994) 60-68.
18- J.H. Abboud and D.R.F. West, “Microstructure of Ti-TiB2 surface layers produced by laser
particles injection”, J. Mat. Sci. Lett. , 13 (1994) 457-461.
19- J.H. Abboud and R.D. Rawlings, and D.R.F. West. “Functionally gradient of Ti-Al- based alloys
produced by laser alloying and cladding”, Mat. Sci. Technol., 10 (1994) 414-419
20- J.H. Abboud and D.R.F. West, and R.D. Rawling, “Functionally gradient Ti-Al composite
produced by laser cladding” J. Mat. Sci. 29 (1994) 3393-3398.
21- J.H. Abboud and D.R.F. West, and R.D. Rawling, “Microstructure and properties of functionally
gradient Ti-Al produced by laser cladding”, Mater. Sci. Technol., Oct. (1994) 848-853.
22- J.H. Abboud and D.R.F. West, and R.D. Rawling, “Functionally gradient coating layers produced
by laser alloying cladding” Proc. ASI Conf. of Laser Surface Treatment and Thin Solid Film,
Portugal, Sesmibra, 3-16 July (1994),
23- J.H. Abboud and D.R.F. West, and R.D. Rawling, “Functionally gradient Fe-Al and Ni-Al clad
layer produced via laser cladding, J. Mater. Sci. 30 (1995) 5931-5938.
During the work at Garyounis University (now Benghazi University) from 1996 –until now
24- Khaled El-dressy and J.H. Abboud “Surface melting of M2 tool steel by ND-YAG laser, “Sixth
International Conference on Production Engineering and Design for Development, 12-14 Feb, 2002”,
Ain shims, Cairo, Egypt
25- J. H. Abboud, K.Y. Benyounis, and A.G.Olabi, “Laser surface treatment of iron based substrate
for automotive application, of Materials Processing Technology 182 (2007) 427–431
26- Osama M.A.Fakron and Jaafar Hadi Abboud: Surface Melting of Nodular Cast Iron By Nd-
YAG Laser and TIG, Journal of Materials Processing Technology 170 (2005) 127 -132.
27- K. Y. Benyounis, A. G. Olabi and J. H. Abboud, "Assessment and Minimization of the Residual
Stress in Dissimilar Laser Welding" Applied Mechanics and Materials Vols. 5 (August 2007) pp.
139-144
28-A.G.Olabi, J.H.Abboud, K.A.Abou-Hossein and K.Y.Benyounis,"Optimizing the Multipurpose
CNG /LPG Solenoid Actuator Using Response Surface Methodology", Proc. of the International
Conference on Vehicles Alternative Fuel Systems and Environmental Protection (VAFSEP 2006),
from 22 to 25 August 2006, Dublin, Ireland Ed. Dr Abdul Ghani Olabi
29- J.H. Abboud, A.F. Fidel, K.Y. Benyounis,_Surface nitriding of Ti–6Al–4V alloy with a high
power CO2 laser, Optics & Laser Technology 40 (2008) 405–414
30-K. F. Alabeedi, J. H. Abboud and K. Y. Benyounis, Microstructure and Erosion Resistance
Enhancement of Nodular Cast Iron by Laser melting , Wear, March (2009).
31- J. H. Abboud, A. F. Fidel, K. Y. Benyounis , Study of Surface Nitrided Layers on Pure Titanium
Produced by Laser Gas Alloying , Journal of Engineering Researches, Tripoli., Libya No.10, Sept.
2008.
32- K.Y.Benyounis, O.M. Fakron and J.H.Abboud, Materials and Design 30 (2009) 674–678
33- A. F. Salih , J. H. Abboud and K. Y. Benyounis, Surface carburizing of Ti-6Al-4V alloy by
laser melting. Optics and Lasers in Engineering 48 (2010) 257–267.
34- A. R. Hamad, J.H. Abboud, F. M. Shuaeib, K.Y. Benyounis, Surface hardening of commercially
pure titanium by laser nitriding-Response surface analysis, Advances in Engineering Software 41
(2010) 674–679
35- I. Y.Khalfallah, M. N. Rahoma, J. H.Abboud, and K.Y.Benyounis, Microstructure and corrosion
behavior of austenitic stainless steel treated with laser, Optics & Laser Technology 43 (2011) 806–813.
36: J.H. Abboud, Microstructure and erosion assessment of nodular cast iron surface melted by TIG,
Materials and Design, Volume 35 (2012) 677-684.
37: J.H. Abboud, Effect of processing parameters on titanium nitrided surface layers produced by laser
gas nitriding, Surf. Coat. Technol., 214 (2013) 19-30.
Supervision of MSc students
So far I have supervised seven MSc students as a main supervisor:
1. Khaled A El-dressi:, ”Surface Melting and Alloying of Some Alloy Steels by Nd-YAG Laser”.
Industrial Engineering, Garyounis University, Fall 2000 , (Paper No. 24 )
2. Khalid Younis Benyounis, “Surface Treatments of some Iron based substrate by Nd-YAG
Laser”. Industrial Engineering, Garyounis University, Fall 2000. (Paper No. 25, and later on papers
27 and 28))
3. Osama Fakron Al-Arabee, “Effect of rapid solification on the microstructures of M2 high speed
steel and cast irons by laser melting”. Department of mechanical Engineering, Garyounis University,
spring 2003. (Papers No. 26 and 32)
Almahdi Farag Fidel, “Surface Hardening of Titanium Substrates With Lasers”, Department of .4
Mechanical Engineering, faculty of Engineering, Garyounis University, 2005.(Papers No. 29 and 31
5. Abdalbaset R. Hamad, Surface hardening of commercially pure titanium by laser nitriding:
Response surface analysis ", Department of Mechanical Engineering, University of Garyounis 2007,
(paper 35)
6. Khalid Fithallah, "Enhancement of Erosion Resistance of Nodular Cast Iron by Laser Melting and
Alloying", Department of Mechanical Engineering, University of Garyounis 2007.
(Paper No. 30)
7. Ibrahim Youniss Khalfallah, “ Influence of Laser Surface Melting of Austenitic Stainless Steel
on the Microstructure and Corrosion Properties”, Department of mechanical Engineering, Garyounis
University, Fall 2008.
REFERENCES:
1- Prof. R. Rawlings: Department of Materials, Imperial College, London SW7 2BP
2- Prof. W.M. Steen: Department of Mechanical Engineering, University of Liverpool. P.O.Box 747,
LL9 3BX.
3- Prof. Abd –Alkareem busedra: Department of Mechanical Engineering, University of Benghazi,
Benghazi, Libya, P.O Box 1308.

المشاركات في المجتمع الاكاديمي

شاركت في مؤتمر لشبونة في مدينة سسمبرة سنة 1994
ندوات علمية في امبيريل كولج في لندن
اشراف على اطروحات الماجستير في جامعة بنغازي_ليبيا
الابحاث المنشورة(ابحاث الماجستير -ابحاث الدكتوراه _ابحاث مابعد الدكتوراه

SUMMARY OF RESERACHES BY J.H. ABBOUD FROM 1983 -2015

Researches published during the MSc period in University of Technology -Baghdad – Iraq, 1981-1983 1: Modification of the spinodal hardening in a Cu-9wt%Ni-6wt%Sn alloy by 0.1 wt % silicon or aluminum addition Journal of Materials Science Letters. May 1983, Volume 2, Issue 5, pp 233-235
2: Effect of a 1% Al or Si addition or thermal hardening due to spinodal decomposition in Cu-9Ni-6Sn alloy,
J.H. Abboud and E.S. Dwarakadasa, Engineering Technology,1 (1983), Baghdad.
3: Scanning electron microscope studies of fractures in spinodally hardened Cu-9Ni-6Sn alloys”
J.H. Abboud and E.S. Dwarakadasa “ J. Mater. Sci. Lett. 4 (1985) 1111-1114. J-GLOBAL ID:200902064484672431 ????:85A0512282
SEM studies of fractures in spinodally hardened Cu-9Ni-6Sn-X alloys.
??????????Cu?9Ni?6Sn?X?????????SEM?? ??:VIJAYARAJU K (Indian Inst. Science)?DWARAKADASA E S (Indian Inst. Science)?ABBOUD J H (Univ. Technology, Baghdad) ???:J Mater Sci Lett ?:4 ?:9 ???:1111-1114
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Researches published during the Ph.D period at Imperial College of Science, Medicine, and Technology (1986-1990) 1:Ceramic–metal composites produced by laser surface treatment
JH Abboud, DRF West - Materials science and technology, 1989 - maneyonline.com
Abstract : The injection of SiC particles (150 ?m size) into laser surface melted commercial purity tThe injection of SiC particles (150 ?m size) into laser surface melted commercial purity titanium, Ti–6Al–4V (wt-%) alloy, and Ti–2·5Cu (wt-%) alloy has been investigated using 1·75 kW laser
power, 5 mm beam diameter, 0·15 g s?l powder flowrate and traverse speeds ranging from 7 to 20 mm/s. Partial dissolution of SiC occurred and fine dendrites of TiC nucleated at the particle/matrix interfaces and also within the matrix. Silicon enrichment of the matrix and a eutectic constituent were observed. The microhardness of the melted zone was increased to 600–650HV(500g).
2: Laser surface alloying of titanium with aluminium
JH Abboud, DRF West - Journal of materials science letters, 1990 - Springer
The use of lasers for the surface modification of titanium and its alloys has been the subject of several investigations [1-6]. Draper et al.[1] have laser surface alloyed palladium into a titanium substrate to improve corrosion protection in boiling HC1; the results were ...
3: Microstructure of titanium injected with SiC particles by laser processing
JH Abboud, DRF West - Journal of materials science letters, 1991 - Springer
In recent years there has been increasing interest in the use of high-power CO2 lasers for surface treatments of Ti and Ti alloys involving melting, alloying, cladding and particle injection. The last of these methods in this context is of interest in relation to the
4: Processing aspects of laser surface alloying of titanium with aluminium
JH Abboud, DRF West - Materials Science and Technology, 1991 - maneyonline.com
An investigation has been made of the laser surface alloying of titanium using a continuous feed of aluminum powder. By means of a continuous wave CO2 laser operating at 1·8 kW power, with a beam diameter of 3 mm, ranges of traverse speed (from 3 to 20 mm s?1) and aluminum powder feed rate (from 0·03 to 0·11 g s?1) were used to produce a series of alloyed zones with aluminum contents in the range ?20–80 at.-%. Conditions for obtaining reasonable homogeneity and reproducibility of composition were determined. 5: Laser surface alloying of titanium with silicon
JH Abboud, DRF West - Surface Engineering, 1991 - maneyonline.com
Abstract: An investigation is reported of the laser surface alloying of titanium with silicon using a 2 kW carbon dioxide laser and continuous feed of silicon powder. Alloyed zones containing up to 20 at.-% Si were produced using the following processing parameters: 1· ...
6: Martensite formation in Ti–Al layers produced by laser surface alloying
JH Abboud, DRF West - Materials science and technology, 1991 - maneyonline.com
Abstract The microstructures of Ti–Al layers produced by laser surface alloying of a Ti substrate have been investigated for Al contents in the range 17–36 at.–%. The alloyed layers were obtained using a continuous wave CO2 laser and a powder feed technique ...
Researches published during the postdoctoral period at Imperial College – Materials Department (1990 – 1994) 7: Laser surface melting of beta titanium alloys
Laser surface melting of Ti and Ti alloys has been used to obtain rapid solidification with resultant fine-scale microstructures and segregation [1, 2]. For example, laser surface melting of Ti (eg commercial purity Ti; Ti-5.5 AI-3.5 Sn-INb-0.3 Si) and (oL+/3)-Ti (eg Ti JH Abboud, DR West - J. Mater. Sci. Lett, 1992
8: In situ production of Ti-TiC composites by laser melting
JH Abboud, DRF West - Journal of materials science letters, 1992 - Springer
In previously reported work [1-4] high-power CO2 lasers were used to produce Ti/SiC or TiC composite layers, approximately 1 mm thick, by the injection of the ceramic particles into the laser-melted zone of titanium and titanium alloys. The dimensions of these layers and the ...
9: Microstructures of titanium-aluminides produced by laser surface alloying
JH Abboud, DRF West - Journal of materials science, 1992 - Springer
The microstructures of Ti-Al layers (from 43–80 at% Al) produced by laser surface alloying of titanium substrate with a powder feed technique have been investigated. The laser processing parameters were; 1.8 kW laser power, 3 mm beam diameter, 7 mm s? 1 ...
10: Process modeling of the laser surface treatment of titanium with aluminum
R. Reed, J.H. Abboud and D.R.F. West, “Process modeling of the laser surface treatment of titanium with aluminum”, Proceedings of International Conference of Laser Advance Materials Processing - Science and Applications, HIVE Nagaoka, Nagoka, Niiggata, Japan, ed. by A. Matsunawa and S. Katayama, 7-12 June 1992.
11- Titanium / Ceramic composite produced by laser processing
J.H. Abboud and DR.F. West, “”Seventh Word International Conf. on Titanium, San Diego, California, 28 June - 2 July 1992.
12: Property assessment of laser surface treated titanium alloys
JH Abboud, DRF West, RH Hibberd - Surface engineering, 1993 - maneyonline.com
Laser treatments have been used to produce a series of surface layers containing up to? 65 at.-% Al on a near ? IMI685 titanium alloy substrate and a mixture of aluminium powder and silicon carbide was used to produce a surface composite layer based on ...
13:Microstructure and properties of laser produced Ti-Al functionally gradient clad
JH Abboud, DRF West, RD Rawlings - Materials science and technology, 1994 - cat.inist.fr
Résumé/Abstract The microstructure and oxidation and erosion resistance of three laser clad layers, namely, Ti? 14.5 Al? 3.7 V, Ti? 17 Al? 3.7 V, and Ti? 30 Al? 2.8 V (all wt-%), have been investigated. Using a continuous wave CO 2 laser and powder feed technique, ...
14: Microstructure of Ti-TiB2 surface layers produced by laser particle injection
JH Abboud, DRF West - Journal of materials science letters, 1994 - Springer
Surface treatments of materials using high power CO2 lasers typically involve moving a substrate under the laser beam and generating a melt zone; concurrently, metal or ceramic or a combination of metal+ ceramic in the form of powder is introduced into the melted ...
15:Functionally gradient titanium-aluminide composites produced by laser cladding
JH Abboud, DRF West, RD Rawlings - Journal of Materials Science, 1994 - Springer
Abstract The laser surface cladding of Ti-Al/TiB 2 composites was investigated as a means of producing a functionally gradient material on a commercially pure Ti substrate. Single and double layers were produced. The processing parameters were: 1.7 kW laser power, 3 ...
16:Functionally gradient layers of Ti–AI based alloys produced by laser alloying and cladding
JH Abboud, RD Rawlings… - Materials science and …, 1994 - maneyonline.com
Abstract Laser surface alloying and cladding have been used with the aim of producing functionally gradient materials based on the Ti–Al system. A continuous powder feed into a laser generated melt pool produced several fully overlapping layers of increasing Al ...
17: Functionally graded nickel-aluminide and iron-aluminide coatings produced via laser cladding
JH Abboud, RD Rawlings, DRF West - Journal of materials science, 1995 - Springer
Abstract Functionally graded nickel-aluminide and iron-aluminide in the form of superimposed clad layers up to? 4 mm total thickness were produced on nickel and on iron based substrates, respectively. A continuous wave carbon dioxide laser and two separate ...
Researched published at Garyounis University (currently Benghazi University) - Libya - from 1996 - 2015 18:Surface melting of nodular cast iron by Nd-YAG laser and TIG
KY Benyounis, OMA Fakron, JH Abboud… - Journal of materials …, 2005 - Elsevier
The effect of surface melting and rapid solidification on the structure and hardness of nodular cast iron has been investigated. Two heat sources were used for surface melting mainly, laser beam (LB) and electric arc generated between the tungsten electrode and ...
19:Laser surface treatments of iron-based substrates for automotive application
JH Abboud, KY Benyounis, AG Olabi… - Journal of materials …, 2007 - Elsevier
In the present work laser surface alloying of low carbon steel with carbon has been investigated for automotive application. The laser used was Nd-YAG, having a wavelength of 1.06 ?m. It was operated at energy levels between 5 and 30J, pulse duration from 1.5 to ...
20:Surface nitriding of Ti–6Al–4V alloy with a high power CO2 laser
JH Abboud, AF Fidel, KY Benyounis - Optics & Laser Technology, 2008 - Elsevier
Surface nitriding of a Ti–6Al–4V alloy by laser melting in a flow of nitrogen gas has been investigated, with the aim of increasing surface hardness and hence improving related properties such as wear and erosion resistance. The effect of the scanning speed,
21: Rapid solidification of M2 high-speed steel by laser melting
KY Benyounis, OM Fakron, JH Abboud - Materials & Design, 2009 - Elsevier
The effects of laser surface melting and rapid solidification on the microstructure of M2 high- speed steel (HSS) have been investigated. A solid state pulse Nd-YAG laser of wavelength 1.06 ?m, maximum power of 100W, beam diameter? 1mm, and pulse duration of 0.8 and ...
22:Microstructure and erosion resistance enhancement of nodular cast iron by laser melting KF Alabeedi, JH Abboud, KY Benyounis - Wear, 2009 - Elsevier
The surface of nodular graphite cast iron samples was melted by 50% overlapping passes from a 3kW CW CO2 laser. The objective was to modify the microstructure and improve the hardness and erosion resistance of the surface. The results showed that laser melting led ...
23:Assessment and minimization of the residual stress in dissimilar laser welding
K. Y. Benyounis, A. G. Olabi and J. H. Abboud-Applied Mechanics and Materials Vols. 5
Abstract. Establishing the relationship between process parameters and the magnitude of residualstresses is essential to determine the life of welded components. It is the aim of this paper to develop mathematical models to assess residual stresses in the heat-affected zone of dissimilar butt jointed welds of AISI304 and AISI1016. These models determine the effect of process parameters on maximum residual stress. Laser power, travel speed and focal position are the process input parameters. Plates of 3 mm thick of both materials were laser welded using a 1.5 kW CW CO2 Rofin laser as a welding source. Hole-drilling method was
-
24:Surface carburizing of Ti–6Al–4V alloy by laser melting
AF Saleh, JH Abboud, KY Benyounis - Optics and Lasers in Engineering, 2010 - Elsevier
Surface carburizing of a Ti–6Al–4V alloy using laser melting has been investigated experimentally, with the aim of increasing surface hardness and hence improving related properties such as wear and erosion resistance. The surface of the material was coated ...
25:Microstructure and corrosion behavior of austenitic stainless steel treated with laser
IY Khalfallah, MN Rahoma, JH Abboud… - Optics & Laser …, 2011 - Elsevier
Surface modification of AISI316 stainless steel by laser melting was investigated experimentally using 2 and 4kW laser power emitted from a continuous wave CO2 laser at different specimen scanning speeds ranged from 300 to 1500mm/min. Also, an ...
26: Surface hardening of commercially pure titanium by laser nitriding: response surface analysis
AR Hamad, JH Abboud, FM Shuaeib… - Advances in Engineering …, 2010 - Elsevier
In this work laser surface nitriding was performed to enhance wear and erosion resistance of pure titanium by increasing its surface hardness while keeping the strength and ductility of the core for static and dynamic loading resistance. The Response Surface Methodology ( ...
27:Microstructure and erosion characteristic of nodular cast iron surface modified by tungsten inert gas
JH Abboud - Materials & Design, 2012 - Elsevier
The surface of nodular cast iron has been melted and rapidly solidified by Tungsten Inert Gas (TIG) process to produce a chilled structure of high hardness and better erosion resistance. Welding currents of magnitude 100, 150, and 200A at a constant voltage of 72 ...
28: Effect of processing parameters on titanium nitrided surface layers produced by laser gas nitriding
J H Abboud, Surface & Coatings Technology 214 (2013) 19–29
investigations based on Response Surface Method (RSM) were carried out to study the influence of laser power, nitrogen flow rate, and scanning speed on the microstructure, depth, hardness, and cracking of a set of titanium nitrided surface layers produced by laser gas nitriding. Laser powers ranged between 1 and 5 kW, scanning speeds 5 to 20 mm/min, and nitrogen gas flow rate ranged from 500 to 4000 l/min. The aim was to use RSM in the design of experiment to find suitable processing parameters which produce deep and crack free nitrided layers with a high surface hardness.

معلومات اخرى

2 كتاب شكر من جامعة التكنلوجيا
2 كتاب شكر من رئاسة الجامعة التكنولجيا
1 كتاب شكر من عميد كلية هندسة المسيب

Jaafar Hadi Abboud - Google Scholar Citations
researchgate.net/profile/jaafar _ Abboud