Walid

@ju.edu.jo

Associate professor at the department of Industrial Engineering/ Engineering
The University of Jordan

Walid


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https://researchid.co/walidkh

EDUCATION

PhD, Chalmers University of Technology, Gothenburg, Sweden 1999 - 2004
PhD degree in materials science and engineering
I did my PhD studies in the field of powder metallurgy (liquid phase sintering)
Thesis: Tailoring of liquid phase sintering and microstructure of sintered steel

Chalmers University of Technology, Gothenburg, Sweden 1997-1999
Master of Science in materials science and engineering
Thesis: Metalized Plastics for Space Applications

Jordan University of Science and Technology, Irbid, Jordan 1991 - 1996
Bachelor’s degree in mechanical engineering (162 credit hours)

RESEARCH, TEACHING, or OTHER INTERESTS

Materials Science, Metals and Alloys
26

Scopus Publications

278

Scholar Citations

9

Scholar h-index

9

Scholar i10-index

Scopus Publications

  • Effects of Fused Deposition Modeling Process Parameters Infill Pattern, Layer Thickness, and Printing Temperature on the Tensile Properties and Surface Roughness of 3D-Printed Polylactic Acid
    Walid Khraisat, Nathir Rawashdeh, Anas Atieh
    Journal of Materials Engineering and Performance, 2026
  • A QUALITATIVE STUDY OF MULTIPHASE STEEL MICROSTRUCTURE DEVELOPED IN FOUR DIFFERENT STEEL ALLOYS
    W. Khraisat
    Journal of Mining and Metallurgy Section B Metallurgy, 2025
    In this work, quench and partitioning (Q&P) heat treatment was performed on four different steel alloys in order to obtain multiphase steels with a microstructure of ferrite, martensite, bainite, and retained austenite. The four alloys are SS1672, 38MnVS6, R350HT and SS2244. They were selected to study the effect of increasing the Mn/Si ratio and the Cr effect on the microstructure. Multiphase steels with retained austenite of different fractions and morphologies in a ferritic-bainitic matrix were obtained depending on the Cr and Si amounts. The detailed characterisation of the microstructural evolution of four heat-treated Q&P steel samples by optical microscopy (OM) was done only to provide a qualitative understanding. Despite these limitations, the OM micrographs were sufficient to confirm and identify the formed phases, especially the bainite phase. This study shows that a high Si levels are not strictly required to suppress pearlite formation during the quenching and partitioning (Q&P) treatment of medium and eutectoid steels, due to the influence of manganese. A Mn/Si ratio greater than 2 is found to be essential for effectively preventing pearlite formation. Additionally, a lower martensite starting temperature (Ms) significantly refines the microstructural features, particularly bainite and retained austenite.
  • The Effect of the Si Alloying Method on the Microstructure and Properties of Sintering and Hardening of Gray Iron
    W. Khraisat, H. Borgström
    Metallography Microstructure and Analysis, 2024
  • Qualitative study of carbides in liquid phase sintered M3:2 high speed steel
    Walid Khraisat, Wisam Abu Jadayil
    Heliyon, 2024
  • Strain hardening exponent and strain rate sensitivity exponent of dual-phase steels at quasi-static strain rates during tensile testing
    W. Khraisat
    Cogent Engineering, 2023
    The effects of quasi-static strain rates on the tensile properties of two commercial ferrite-martensite dual-phase DP 600 and DP 800 steels were investigated using strip-shaped samples. The investigation was done by uniaxial tensile tests, covering applicable quasi-static strain rates. The two dual-phase steels show positive strain rate sensitivity. It is found that, as the flow stress increases, the strain-rate sensitivity exponent m decreases. The drop in the strain-rate sensitivity exponent m with strain is largely attributed to the decreased true strain rate caused by the increased instantaneous length of the specimen as the deformation progresses. To better describe the flow behavior of DP steels, a relationship combining the effect of both strain hardening exponent n and strain-rate sensitivity exponent m on the slope of the stress-strain is correlated. A good agreement between the extended Hollomon model and experimental tensile test data from stress-strain measurements is found.
  • Statistical analysis for the main factors causing car accidents
    Arpn Journal of Engineering and Applied Sciences, 2020
  • The Effect of Carbon and Silicon Alloying Additions on the Morphology of Pores and Tensile Characteristics of Sintered Steels
    Walid Khraisat, Wisam Abu Jadayil, Nathir Rawashdeh
    Metallography Microstructure and Analysis, 2019
  • A visual inspection system of glass ampoule packaging defects: effect of lighting configurations
    Nathir A. Rawashdeh, Jumana M. Abu-Khalaf, Walid Khraisat, Shireen S. Al-Hourani
    International Journal of Computer Integrated Manufacturing, 2018
    In any pharmaceutical packaging process, error rates must be kept very low to prevent defective or incorrect medicine from reaching the consumer. Published articles include a focus on the inspection of ampoule content for the presence of contaminants. Methods of inspection include optical cameras that record sequential images to detect the movement of floating objects via feature extraction and classification. Other methods employ spectral imaging and dying of ampoules to detect cracks. Thermal imaging is also used to inspect structural integrity and mechanical stress; however, this approach is marked by relatively high cost. This paper describes the enhancement of an optical vision-based inspection system for a glass ampoule packaging process. The developed solution involves a reconfiguration of the illumination system of the ampoule trays as well as reprogramming of a real-time optical camera. The camera is linked to the process controller and triggers the ejection of trays containing faulty ampoules. Eight defect types are of interest, namely: missing ampoules; ampoules without a label; crushed ampoules; ampoules with a broken tip – present or missing; ampoules with a broken base; cracked ampoules; empty ampoules. The original inspection system performance was inadequate and only detected 2 of the 8 defect types reliably. The improved system which is described in this paper has adequately detected all aforementioned defect types. Experiments show that the overall detection rates have improved from 55% to 99.6% on average. Average camera detection accuracy has improved from 38% to 99.5%. In addition, the false positives, i.e. rejection rates, were reduced from 45% to 7%.
  • The effect of rolling direction on the weld structure and mechanical properties of DP 1000 steel
    Walid Khraisat, Wisam Abu Jadayil, Yazan Al-Zain, Sa’ed Musmar, Chaoqun Wu
    Cogent Engineering, 2018
    Since gas metal arc welding (GMAW) is a common procedure to join different sheets in the industry, the welding direction dependence on the rolling direction was investigated for a welded DP1000, a cold-rolled dual phase steel. Microstructural investigations and mechanical tests were conducted on two weldments; one being welded parallel to the rolling direction and the second transverse to the rolling direction and the results were compared. It was found that there is a higher degree of softening of the heat-affected zone in the sample welded parallel to the rolling direction. Although this softening did not significantly decrease the tensile strength or the hardness of this sample when compared to the one welded transverse to the rolling direction, the elongation was twice as high in the former sample. That is related to the slower heat dissipation in the sample welded parallel to the rolling direction as confirmed by its microstructural products.
  • The role of phosphorus in pore rounding of sintered steels
    Walid Khraisat, Wisam Abu Jadayil, Nathir Rawashdeh, Henrik Borgström
    Cogent Engineering, 2018
    The contribution of the surface active element Phosphorus (P) in pore rounding in sintered steels is absent in popular sintering models. Instead, these mathematical models analyze the rate of mass transport, which, according to these models, is driven by chemical potential gradients set up by the differences in the curvature of the free surfaces of the compact of contacting particles. To elucidate the effect that P has on rounding of pores in sintering models, an attempt has been made to incorporate surface curvature in Gibbs’ surface thermodynamics. Using the image analysis method, a comparative study of pore morphology of sintered Iron-Carbon-Phosphorus (Fe-C-P) has been performed to study the effect P has on pore morphology. The application of the shape factor has been used to characterize the morphology of the pores. It was found that morphological enrichment and depletion of P are related to surface stresses as well as to the influence of vacancies.
  • Visualizing shear bands in 3-D using axisymmetric sample: An experimental study
    W. Khraisat, N.A. Rawashdeh, L. Nyborg
    Journal of King Saud University Engineering Sciences, 2017
  • Pinning effect of pores on grain growth in sintered steel
    Jordan Journal of Mechanical and Industrial Engineering, 2017
  • Different strategies to improve the production to reach the optimum capacity in plastic company
    Wisam Abu Jadayil, Walid Khraisat, Mwafak Shakoor
    Cogent Engineering, 2017
  • Creation of different cell layouts using part assignment process for manufacturing a traction drive speed reducer
    International Journal of Modern Manufacturing Technologies, 2017
  • An investigation for the potential of improving the performance of pattern making process in steel foundries: Case study
    Mohammad Hayajneh, Mohammad D. AL-Tahat, Salman Alshobaki, Walid Khraisat
    Applied Mechanics and Materials, 2014
  • Graphite pore filling and surface blistering of sintered Fe-C-Si
    W. Khraisat
    Powder Metallurgy, 2012
  • Experimental investigation for the elimination of heat treatment related distortion for the production of 'Grizzly bar' casting made of (12-14) % Manganese steel
    International Conference on Manufacturing Engineering Quality and Production Systems Meqaps Proceedings, 2011
  • Predicting optimum hollowness of normally loaded cylindrical rollers using finite element analysis
    W. M. Abu-Jadayil, W. A. Khraisat
    Materials Science and Technology, 2010
  • Strengthening Aluminum Scrap by Alloying with Iron
    Jordan Journal of Mechanical and Industrial Engineering, 2010
  • Optimising grey iron powder compacts
    W. Khraisat, H. Borgström, L. Nyborg, W. Abu al Jadayil
    Powder Metallurgy, 2009
  • Grey iron microstructures via liquid-phase sintering
    International Journal of Powder Metallurgy Princeton New Jersey, 2005
  • Effect of silicon, vanadium and nickel on microstructure of liquid phase sintered M3/2 grade high speed steel
    W. Khraisat, L. Nyborg, P. Sotkovszki
    Powder Metallurgy, 2005
  • Water based processing of iron powder utilising starch consolidation
    P. Romano, O. Lyckfeldt, W. Khraisat
    Powder Metallurgy, 2005
  • Effect of carbon and phosphorus addition on sintered density and effect of carbon removal on mechanical properties of high density sintered steel
    W. Khraisat, L. Nyborg
    Materials Science and Technology, 2004
  • Tailoring of Liquid Phase Sintering and Microstructure of Sintered Steel
    Doktorsavhandlingar Vid Chalmers Tekniska Hogskola, 2004
  • Liquid phase sintering of ferrous powder by carbon and phosphorus control
    W. Khraisat, L. Nyborg
    Powder Metallurgy, 2003

RECENT SCHOLAR PUBLICATIONS

  • Effects of Fused Deposition Modeling Process Parameters Infill Pattern, Layer Thickness, and Printing Temperature on the Tensile Properties and Surface Roughness of 3D-Printed …
    W Khraisat, N Rawashdeh, A Atieh
    Journal of Materials Engineering and Performance, 1-11 , 2026
    2026
  • A qualitative study of multiphase steel microstructure developed in four different steel alloys
    W Khraisat
    Journal of Mining and Metallurgy, Section B: Metallurgy, 11-11 , 2025
    2025
  • The Effect of the Si Alloying Method on the Microstructure and Properties of Sintering and Hardening of Gray Iron
    Khraisat, Walid, Borgstrom
    Metallography, Microstructure, and Analysis , 2024
    2024
    Citations: 1
  • Qualitative Study of Carbides in Liquid Phase Sintered M3:2 High Speed Steel
    W Khraisat, W., Abu Aljadayel
    HELIYON 10 (13) , 2024
    2024
    Citations: 6
  • Strain hardening exponent and strain rate sensitivity exponent of dual-phase steels at quasi-static strain rates during tensile testing
    w. Khraisat
    Cogent Engineering 10 (2) , 2023
    2023
    Citations: 5
  • Statistical Analysis for the Main Factors Causing Car Accidents'
    WA Jadayil, W Khraisat, M Shakoor
    ARPN Journal of Engineering and Applied Sciences 15 (5), 696-715 , 2020
    2020
    Citations: 2
  • The Effect of Carbon and Silicon Alloying Additions on the Morphology of Pores and Tensile Characteristics of Sintered Steels
    W Khraisat, W Abu Jadayil, N Rawashdeh
    Metallography, Microstructure, and Analysis 8 (2), 182-188 , 2019
    2019
    Citations: 2
  • The Effect of Carbon and Silicon Alloying Additions on the Morphology of Pores and Tensile Characteristics of Sintered Steels
    Khraisat W., Abu Jadayil W. and Rawashdeh N
    Metallography, Microstructure, and Analysis 8 (2), 182-188 , 2019
    2019
  • A visual inspection system of glass ampoule packaging defects: effect of lighting configurations
    NA Rawashdeh, JM Abu-Khalaf, W Khraisat, SS Al-Hourani
    International Journal of Computer Integrated Manufacturing 31 (9), 848-856 , 2018
    2018
    Citations: 24
  • The effect of rolling direction on the weld structure and mechanical properties of DP 1000 steel
    W Khraisat, W Abu Jadayil, Y Al-Zain, S., Musmar
    Cogent Engineering 5 (1), 1-11 , 2018
    2018
    Citations: 9
  • The role of phosphorus in pore rounding of sintered steels
    Khraisat, W., Abu Jadayil, W., Rawashdeh, N., and Borgström, H.
    Cogent Engineering/ 5 (1) , 2018
    2018
    Citations: 2
  • The Role of Phosphorus in Pore Rounding of Sintered Steels
    Khraisat W., Abu Jadayil W., Rawashdeh N. and Borgstrom H
    Cogent Engineering/Materials Engineering 5 (1), 1-12 , 2018
    2018
  • The role of phosphorus in pore rounding of sintered steels
    BH Khraisat W, Abu Jadayil W, Rawashdeh N
    Cogent Engineering 5 (1), 1-12 , 2018
    2018
  • traffic emission control through gasoline automotive engine mixture enhancement
    SA Musmar, MT S. Alkheder, A. A. Al-Rousan, M. Al-Ajlouni, Y. Jaradat, ...
    Environmental Progress and Sustainable Energy 37 (2), 615-927 , 2017
    2017
    Citations: 3
  • Visualizing shear bands in 3-D using axisymmetric sample: An experimental study
    W Khraisat, NA Rawashdeh, L Nyborg
    Journal of King Saud University-Engineering Sciences 29 (3), 264-268 , 2017
    2017
    Citations: 1
  • Pinning Effect of Pores on Grain Growth in Sintered Steel.
    NA Rawashdeh, W Khraisat, H Borgström
    Jordan Journal of Mechanical & Industrial Engineering 11 (2) , 2017
    2017
    Citations: 10
  • Pinning effect of pores on grain growth in sintered steel
    N. A. Rawashdeh, W. Khraisat, and H. Borgström
    Jordan Journal of Mechanical and Industrial Engineering 11 (2), 73-78 , 2017
    2017
  • Creation of different cell layouts using part assignment process for manufacturing a traction drive speed reducer
    WA Jadayil, SA Jadayil, W Khraisat, M Shakoor, N Jaber
    International Journal of Modern Manufacturing Technologies 9 (2), 73-81 , 2017
    2017
    Citations: 3
  • Different strategies to improve the production to reach the optimum capacity in plastic company
    W Abu Jadayil, W Khraisat, M Shakoor
    Cogent Engineering 4 (1), 1389831 , 2017
    2017
    Citations: 37
  • An investigation for the potential of improving the performance of pattern making process in steel foundries: Case study
    M Hayajneh, MD AL-Tahat, S Alshobaki, W Khraisat
    Applied Mechanics and Materials 575, 900-904 , 2014
    2014
    Citations: 2

MOST CITED SCHOLAR PUBLICATIONS

  • Strengthening aluminum scrap by alloying with iron
    W Khraisat, W Abu Jadayil
    Jordan Journal of Mechanical and Industrial Engineering 4 (3), 372-377 , 2010
    2010
    Citations: 55
  • Different strategies to improve the production to reach the optimum capacity in plastic company
    W Abu Jadayil, W Khraisat, M Shakoor
    Cogent Engineering 4 (1), 1389831 , 2017
    2017
    Citations: 37
  • Liquid phase sintering of ferrous powder by carbon and phosphorus control
    W Khraisat, L Nyborg
    powder metallurgy 46 (3), 265-270 , 2003
    2003
    Citations: 30
  • Effect of silicon, vanadium and nickel on microstructure of liquid phase sintered M3/2 grade high speed steel
    W Khraisat, L Nyborg, P Sotkovszki
    Powder Metallurgy 48 (1), 33-38 , 2005
    2005
    Citations: 26
  • A visual inspection system of glass ampoule packaging defects: effect of lighting configurations
    NA Rawashdeh, JM Abu-Khalaf, W Khraisat, SS Al-Hourani
    International Journal of Computer Integrated Manufacturing 31 (9), 848-856 , 2018
    2018
    Citations: 24
  • Predicting optimum hollowness of normally loaded cylindrical rollers using finite element analysis
    WAK WM Abu-Jadayil
    Materials Science and Technology 26 (2), 176-183 , 2010
    2010
    Citations: 17
  • Effect of carbon and phosphorus addition on sintered density and effect of carbon removal on mechanical properties of high density sintered steel
    W Khraisat, L Nyborg
    Materials science and technology 20 (6), 705-710 , 2004
    2004
    Citations: 15
  • Optimising grey iron powder compacts
    W. Khraisat, H. Borgstrom, L. Nyborg, W. Abu Jadayil
    Powder Metallurgy 52 (4), 291-297 , 2009
    2009
    Citations: 12
  • Pinning Effect of Pores on Grain Growth in Sintered Steel.
    NA Rawashdeh, W Khraisat, H Borgström
    Jordan Journal of Mechanical & Industrial Engineering 11 (2) , 2017
    2017
    Citations: 10
  • The effect of rolling direction on the weld structure and mechanical properties of DP 1000 steel
    W Khraisat, W Abu Jadayil, Y Al-Zain, S., Musmar
    Cogent Engineering 5 (1), 1-11 , 2018
    2018
    Citations: 9
  • Qualitative Study of Carbides in Liquid Phase Sintered M3:2 High Speed Steel
    W Khraisat, W., Abu Aljadayel
    HELIYON 10 (13) , 2024
    2024
    Citations: 6
  • Tailoring of liquid phase sintering and microstructure of sintered steel.
    W Khraisat
    2004
    Citations: 6
  • Strain hardening exponent and strain rate sensitivity exponent of dual-phase steels at quasi-static strain rates during tensile testing
    w. Khraisat
    Cogent Engineering 10 (2) , 2023
    2023
    Citations: 5
  • Water based processing of iron powder utilising starch consolidation
    P Romano, O Lyckfeldt, W Khraisat
    Powder metallurgy 48 (2), 156-162 , 2005
    2005
    Citations: 5
  • traffic emission control through gasoline automotive engine mixture enhancement
    SA Musmar, MT S. Alkheder, A. A. Al-Rousan, M. Al-Ajlouni, Y. Jaradat, ...
    Environmental Progress and Sustainable Energy 37 (2), 615-927 , 2017
    2017
    Citations: 3
  • Creation of different cell layouts using part assignment process for manufacturing a traction drive speed reducer
    WA Jadayil, SA Jadayil, W Khraisat, M Shakoor, N Jaber
    International Journal of Modern Manufacturing Technologies 9 (2), 73-81 , 2017
    2017
    Citations: 3
  • Grey iron microstructures via liquid-phase sintering
    W Khraisat, L Nyborg
    International Journal of Powder Metallurgy 41 (6), 34-41 , 2005
    2005
    Citations: 3
  • Statistical Analysis for the Main Factors Causing Car Accidents'
    WA Jadayil, W Khraisat, M Shakoor
    ARPN Journal of Engineering and Applied Sciences 15 (5), 696-715 , 2020
    2020
    Citations: 2
  • The Effect of Carbon and Silicon Alloying Additions on the Morphology of Pores and Tensile Characteristics of Sintered Steels
    W Khraisat, W Abu Jadayil, N Rawashdeh
    Metallography, Microstructure, and Analysis 8 (2), 182-188 , 2019
    2019
    Citations: 2
  • The role of phosphorus in pore rounding of sintered steels
    Khraisat, W., Abu Jadayil, W., Rawashdeh, N., and Borgström, H.
    Cogent Engineering/ 5 (1) , 2018
    2018
    Citations: 2