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Department of Metallurgical and Materials Engineering

C. Hakan Gür

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C. Hakan Gür
Prof. Dr.
Director, METU - Welding Technology & NDT Res./Appl. Center
Room No: D-101
Tel: +90 (312) 210-5916
Fax: +90 (312) 210-2518
e-Mail: chgur@metu.edu.tr

Education:
  • Ph.D. Middle East Technical University, Turkey (1995)
  • Resarcher (BAM-Berlin): 01.1991-02.1992, 06-09.1993, 08-09.1995
  • M.S. Middle East Technical University, Turkey
  • B.S. Middle East Technical University, Turkey
Research Interests:
  • Nondestructive Testing and Materials Characterization
  • Determination of Residual Stresses
  • Heat Treatment, Welding
Publications:
Articles
  • Mashhuriazar A, Erturk MT, Batıgün C, Omidvar H, Badihehaghdam M, Gür CH, Tirkes S, Investigating the Effects of Repair Welding on Microstructure, Mechanical Properties, and Corrosion Behavior of IN-939 Superalloy, Journal of Materials Engineering and Performance, (14 Nov 2022)_https://doi.org/10.1007/s11665-022-07596-5
  • Gür CH, Non-Destructive Methods for Assessment and Qualification of Metallic Components Additively Manufactured by Powder Bed Fusion Processes, International Conf on Adv Mater Sci & Eng and High Tech Devices Applications (ICMATSE 2022, Ankara, 27-29 Oct 2022), e-Proc., ISBN: 978-625-00-1052-5, Invited paper No. 14, pp.22-27
  • Mashhuriazar A, Gür CH, Sajuri Z, Omidvar H, Effects of Heat Input on Metallurgical Behavior in HAZ of Multi-Pass and Multi-Layer Welded IN-939 Superalloy, Journal of Materials Research and Technology, 15 (2021) 1590-1603 https://doi.org/10.1016/j.jmrt.2021.08.113
  • Aslam MJ, Gur CH, An Empirical Approach to Analyze Creep Rupture Behavior of P91 Steel, Korean Journal of Materials Research, 31 (2021) 255-263_https://doi.org/10.3740/MRSK.2021.31.5.255
  • Gür CH, Nondestructive Evaluation of Additively Manufactured Metallic Components, Invited paper, International Conf on Adv Mater Sci & Eng and High Tech Devices Applications (ICMATSE 2020), Ankara, 2-4 Oct 2020, No. 117
  • Mashhuriazar, A., Omidvar, H., Gur, C.H., Sajuri, Z., Effect of Welding Parameters on the Liquation Cracking Behavior of High-Chromium Ni-Based Superalloy, Journal of Materials Engineering and Performance, 29 (2020) 7843-7852_ https://doi.org/10.1007/s11665-020-05292-w
  • Mashhuriazar A., Omidvar H., Sajuri Z., Gür CH, Baghdadi A.H., Effects of Pre-weld Heat Treatment and Heat Input on Metallurgical and Mechanical Behaviour in HAZ of Multi-pass Welded IN-939 Superalloy, Metals, 10 (2020) 1453_ https://doi.org/10.3390/met10111453
  • Kaleli T, Gür CH, Determination of Surface Residual Stresses in the Carburized AISI 8620 Steel by Magnetic Barkhausen Noise Method, Insight – NDT and Condition Monitoring, 7 (2020) 416-421_ https://doi.org/10.1784/insi.2020.62.7.416
  • Özcan B, Gürer G, Gür CH, Effect of Microstructural Modification on Damage Tolerance of 34CrMo4 Shaft Steel, Fatigue and Fracture of Engineering Materials and Structures, (2020) 1-12 DOI:10.1111/ffe.13194
  • Çalışkan S, Gür CH, Investigating the Correlation between Magnetic Barkhausen Noise Emission and Fatigue Life of shot-Peened AISI 4140 Steels, Insight – NDT and Condition Monitoring, 61 (2019) 701-705
    DOI: https://doi.org/10.1784/insi.2019.61.12.701
  • Gür CH, Review of Residual Stress Measurement by Magnetic Barkhausen Noise Technique, Materials Performance and Characterization, Vol 7, Issue 4, 2018 (https://doi.org/10.1520/MPC20170080)
  • Gürer G, Gür CH, Failure Analysis of Fretting Fatigue Initiation and Growth on Railway Axle Press-Fits, Engineering Failure Analysis, 84 (2018) 151-166 (https://doi.org/10.1016/j.engfailanal.2017.06.054)
  • Hizli H, Gür CH, Applicability of the Magnetic Barkhausen Noise Method for Nondestructive Measurement of Residual Stresses in the Carburized and Tempered 19CrNi5H Steels, Research in ND Evaluation, 2017, (https://doi.org/10.1080/09349847.2017.13597)
  • Hizli H, Gür CH, Comparison of Electronic Speckle Laser Interferometry Hole-Drilling and X-ray Diffraction Techniques for Determination of Residual Stresses in the Heat Treated Steels, J Nondestructive Evaluation, 36 (2017) 42
  • Kotan G, Kalay YE, Gür CH, Long-Term Thermal Stability of Equal Channel Angular Pressed 2024 Aluminum Alloy, Mater Sci Eng A, 677 (2016) 307-315
  • Gur C. H., Erian G., Batigun C., Cam I., Investigating the effects of subsequent weld passes on surface residual stresses in steel weldments by magnetik barkhausen noise technique, Materials Evaluation, 74 (2016), 418
  • Garipova N, Batıgün C, Gür CH, Numerical and Experimental Determination of the Residual Stress State in Multi-pass Welded API 5LX70 Plates, Materials Testing, 56 (2014) 831-836
  • Mofid MA, Abdollah-zadeh A, Gür CH, Investigating the Formation of Intermetallic Compounds during Friction Stir Welding of Magnesium Alloy to Aluminum Alloy in Air and under Liquid Nitrogen, Int J Advanced Manufacturing Technology, 71 (2014) 1493-1499
  • Yurtisik K, Tirkes S, Dykhno I, Gur CH, Gurbuz R, Characterization of Duplex Stainless Steel Weld Metals Obtained by Hybrid Plasma- Gas Metal Arc Welding, Soldag. Insp., 18 (2013) 207-216
  • Kotan G, Tan E, Kalay YE, Gür CH, Homogenization of ECAPed Al 2024 Alloy through Age Hardening, Mater Sci Eng A, 559 (2013) 601-606
  • Mofid M.A, Abdollah-zadeh A, Malek Ghaini F, Gür CH, Submerged Friction Stir Welding (SFSW) under Water and under Liquid Nitrogen: An improved method to join Al alloys to Mg alloys, Metallurgical & Materials Trans. A, 43A (2012) 5106-5114
  • Gür CH, Şimşir C, Simulation of Quenching – A Review, Materials Performance and Characterization, Vol. 1, No. 1, Paper ID MPC104479 (2012) 1-37
  • Mofid M.A, Abdollah-zadeh A, Malek Ghaini F, Gür CH, Submerged Friction Stir Welding (SFSW) under Water and under Liquid Nitrogen: An improved method to join Al alloys to Mg alloys, Metallurgical & Materials Trans. A, 43A (2012) 5106-5114
  • Maradit P, Şimşir C, Lübben T, Gür CH, Metallurgical Influence on Quench Distortion of SAE 52100 Long Cylinders, Int Heat Treatment and Surface Engineering 5 (2011) 57-60
  • Oral I, Guzel H, Ahmetli G, Gür CH, Determining the Elastic Properties of Modified Polystyrenes by Sound Velocity Measurements, Journal of Applied Polymer Science 121 (2011) 3425–3432
  • Tan E, Kibar AA, Gür CH, Mechanical and Microstuctural Characterization of 6061 Aluminum Alloy Strips Severely Deformed by Dissimilar Channel Angular Pressing, Materials Characterization, 62 (2011) 391-397
  • Davut K, Gür CH, Monitoring the Microstructural Evolution in Spheroidized Steels by Magnetic Barkhausen Noise Measurements, J Nondestructive Evaluation 29 (2010) 241-247
  • Savaş S, Gür CH, Monitoring Variation of Surface Residual Stresses in the Shot Peened Steel Components by Magnetic Barkhausen Noise Method, INSIGHT – J British Inst of NDT 52 (2010) 672-677
  • Şimşir C, Karpuz P, Gür CH, Quantitative Analysis of the Influence of Strain Hardening on Equal Channel Angular Pressing Process, Computational Materials Science 48 (2010) 633–639
  • Tan E, Gür CH, Influence of DCAP Process on the Mechanical Properties of 6061 Al-Alloy Sheet, Reviews on Advanced Materials Science 25 (2010) 189-193
  • Şimşir, C, Gür CH, A Simulation of the Quenching Process for Predicting Temperature, Microstructure and Residual Stresses, Journal of Mechanical Engineering 56 (2010) 93-103
  • Bayramoglu S, Gür CH, Alexandrov I, Abramova MM, Characterization of Ultra-Fine Grained Steel Samples Produced by High Pressure Torsion via Magnetic Barkhausen Noise Analysis, Mater Sci Eng A 527 (2010) 927-933
  • Yelbay I, Gür CH, Non Destructive Determination of Residual Stress State in Steel Weldments by Magnetic Barkhausen Noise Technique, NDT&E International, NDT&E International 43 (2010) 29-33
  • Karpuz P, Şimşir C, Gür CH, Investigating the Effects of Hardening Behavior of Aluminum Alloys on Equal Channel Angular Pressing – A Finite Element Study, Mater Sci Eng A 503 (2009) 148-151
  • Şimşir C, Gür CH, A Review on Modeling and Simulation of Quenching, Journal of ASTM International 6 (2009) 1-29 (ID JAI101766)
  • Karpuz P, Şimşir C, Gür CH, Simulation of Equal Channel Angular Pressing Applied to Produce Structures with Ultrafine-sized Grains, Int J Microstructure and Materials Properties 4 (2009) 356-367
  • Şimşir C, Gür CH , A FEM based Framework for Simulation of Thermal Treatments: Application to Steel Quenching, Computational Materials Science 44 (2008) 588-600
  • Gür CH, Yıldız, I, Utilization of Non-destructive Methods for Determining the Effect of Age-Hardening on Impact Toughness of 2024 Al-Cu-Mg Alloy, J Nondestructive Evaluation 27 (2008) 99-104
  • Şimşir C, Gür CH, 3D FEM Simulation of Steel Quenching and Investigation of the Effect of Asymmetric Geometry on Residual Stress Distribution, Journal of Materials Processing Technology 207 (2008) 211-221
  • Saraloğlu E, Tan E, Gür CH, Effect of ECAP and Post-aging Processes on 2024 Aluminum Alloy, Steel Research International 79 (2008) Metal Forming special issue Vol.2 467-471
  • Gür CH, Özer M, Erdoğan M, Investigation of the Variations in Microstructure and Mechanical Properties of Dual Matrix Ductile Iron by Magnetic Barkhausen Noise Analysis, Research in ND Evaluation 19 (2008) 44-60
  • Makszimus A, Gacsi Z, Gür CH, Investigation of the Microstructure and Hardness of SiC Reinforced Aluminum Matrix Composites, Materials Science Forum 589 (2008) 239-24422. Karpuz P, Şimşir C, Gür CH, Kim SK, Finite Element Investigation of the Effect of Hardening Behavior of Alloys on Equal Channel Angular Pressing Performance, Materials Science Forum 584-586 (2008) 1021-1026
  • Şimşir C, Gür CH, A Mathematical Framework for Simulation of Thermal Processing of Materials, Turkish J. Eng. Env. Sci.32 (2008) 85-100
  • Davut K, Gür CH, Monitoring the microstructural changes during tempering of quenched SAE 5140 steel by magnetic Barkhausen noise, J Nondestructive Evaluation 26 (2007) 107-113
  • Kaplan M, Gür CH, Erdoğan M, Characterization of dual-phase steels using magnetic Barkhausen noise technique, J Nondestructive Evaluation 26 (2007) 79-87
  • Gür CH, Çam I, Comparison of magnetic Barkhausen noise and ultrasonic velocity measurements for microstructure evaluation of SAE 1040 and SAE 4140 steels. Mater Charac 58 (2007) 447-454
  • Gacsi Z, Gür CH, Makszimus A., Pieczonka T, Investigation of Microstructure Inhomogeneity in SiCp-reinforced Aluminum Matrix Composites. Materials Science Forum 534-536 (2007) 901-904
  • Kretz F, Gacsi Z, Gür CH, Microstructure Characterization of SiCp-reinforced Aluminum Matrix Composites by Newly Developed Computer-based Algorithms, Materials Science Forum 534-536 (2007) 909-912
  • Öztürk A, Gür CH, Determination of the influence of TiO2 on the elastic properties of a mica based glass ceramic by ultrasonic velocity measurements, J of Non-Crystalline Solids 351 (2005) 3655-3662
  • Gür CH, Çam İ, Investigation of as-quenched and tempered commercial steels by magnetic Barkhausen noise method, Int J Microstructure and Materials Properties 1 (2006) 208-218
  • Gür CH, Tuncer BO, Characterization of microstructural phases of steels by sound velocity measurement, Mater Charac 55 (2005) 160-166
  • Gür CH, Tuncer BO, Nondestructive investigation of the effect of quenching and tempering on medium-carbon low alloy steels, Int J Microstructure and Materials Properties 1 (2005) 51-60
  • Gür CH, Tuncer BO, Microstructural investigation of SAE 1040 steel specimens by ultrasonic measurements, INSIGHT – J British Inst of NDT 47 (2005) 421-424
  • Gür CH, Yıldız, İ, Non-destructive investigation on the effect of precipitation hardening on impact toughness of 7020 Al-Zn-Mg alloy, Mater Sci Eng A 382/1-2 (2004) 395-400
  • Gür CH, Arda EB, Effect of tube spinning and subsequent heat treatments on strength, microstructure and residual stress state of AISI/SAE 4140 steel, Mater Sci Tech 19 (2003) 1590-1594
  • Gür CH, Investigation of microstructure-sound velocity relationship in SiCp reinforced aluminium metal matrix composites, Mater Sci Eng A 361/1-2 (2003) 29-35
  • Gür CH, Keleş Y, Ultrasonic characterisation of hot-rolled and heat-treated plain carbon steels, INSIGHT – J British Inst of NDT 45 (2003) 615-620
  • Gür CH, Investigation of the influence of specimen geometry on quench behaviour of steels by X-ray determination of surface residual stresses, Int J Mech Sci 44/7 (2002) 1335-1347
  • Gür CH, Ögel B, Non-destructive microstructural characterization of aluminum matrix composites by ultrasonic techniques, Mater Charac 47/3-4 (2001) 227-233
  • Gür CH, Tekkaya AE, Numerical investigation of non-homogeneous plastic deformation in quenching process, Mater Sci Eng A 319-321 (2001) 164-169
  • Gür CH, Aydınmakina B, Microstructural characterisation of ductile irons by measuring velocity and apparent attenuation of ultrasonic waves, INSIGHT – J British Inst NDT 43 (2001) 731-734
  • Gür CH, Investigation of SiCp reinforced aluminium matrix composites by shear and longitudinal ultrasonic waves, INSIGHT – J British Inst of NDT 43 (2001) 748-750
  • Gür CH, Tekkaya AE, Numerical and experimental analysis of quench induced stresses and microstructures, J Mech Behaviour of Mater 9 (1998) 237-256
  • Gür CH, Quality management system in NDT laboratories: Accreditation as a testing laboratory, INSIGHT- J British Inst NDT 40 (1998) 621-623
  • Tekin B, Gür CH, Ankara OA, Investigation of fatigue and creep damage in steam boiler pipes by ultrasonic testing, INSIGHT- J British Inst NDT 39 (1997) 626-629
  • Gür CH, Tekkaya AE, Finite element simulation of quench hardening, Steel Research 67 (1996) 298-30
  • Gür CH, Tekkaya AE, Schuler,W., Effect of boundary conditions and workpiece geometry on residual stresses and microstructure in quenching process, Steel Research 67 (1996) 501-506

Book
  • Handbook of Thermal Process Modeling of Steels, 2009 CRC Press – Taylor & Francis, Eds: C.H.Gür, J.Pan, ISBN 978-0-8493-5019-1

Chapter in a Book
  • Quenching Theory and Technology: Chapter 17 Simulation of Quenching by Caner Şimşir & C. Hakan Gür, 2010 CRC Press, Eds: B.Liscic, H.M.Tensi, L.C.F.Canale, G.E.Totten, ISBN 978-0-8493-9279-5
Last Updated:
28/12/2022 - 17:53

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