Personal Information
Girish Kumar Padhy

Department of Materials Science and Engineering, Shandong University, Jinan, Shandong, China

Girish Kumar Padhy
Educations
From 08/2007 to 11/2012, Doctorate , India
From 09/2003 to 12/2005, Master of Science , India
From 08/2002 to 09/2003, Bachelor of Education , India
From 06/1999 to 06/2002, Bachelor of Science , India
Work Experiences
From 10/2014 to Present, Postdoctoral Researcher , Shandong University
From 11/2012 to 09/2014, Specially Appointed Researcher , Osaka University
Projects
From 10/2014 to Present, Microstructure evolution in ultrasonically enhanced friction stir welds.. , To get deeper insight into the physical mechanisms of the process so that it can be developed for the improvement of the product in a sustainable manner
From 11/2012 to 09/2014, Hydrogen behavior in dual phase steel. , To better understand the hydrogen diffusion and trapping in the presence of retained austenite in ferritic steel and delta ferrite in austenitic phase.
From 08/2007 to 10/2012, Study of diffusible hydrogen in steel welds using indigenously developed hot-extraction techniques. , New methods for determination of diffusible hydrogen were developed and the scope of their application for further studies were demonstrated.
Speciality
Materials processing
Friction stir welding
Hydrogen in metals
Hydrogen embrittlement
Welding Metallurgy
Materials Characterization
Journal Articles
'Numerical simulation of ultrasonic field and its acoustoplastic influence on friction stir welding', Materials and Design, Elsevier Ltd., ISSN: 0264-1275, Volume 104, 2016, Page No. 102-115. Author: L. Shi, C.S. Wu, Girish Kumar Padhy, S. Gao
'Modified constitutive equation for use in modeling the ultrasonic vibration enhanced friction stir welding process', Scripta Materialia, Elsevier Ltd., ISSN: 1359-6462, Volume 119, 2016, Page No. 21-26. Author: L. Shi, C.S. Wu, S. Gao, Girish Kumar Padhy
'Influence of shielding gas on undercutting formation in gas metal arc welding', Journal of Materials Processing Technology, Elsevier Ltd., ISSN: 0924-0136, Volume 234, 2016, Page No. 169-176. Author: R. Zong, J. Chen, C.S. Wu, Girish Kumar Padhy
'Evaluation of local strain distribution in ultrasonic enhanced Al 6061-T6 friction stir weld nugget by EBSD analysis', Materials and Design, Elsevier Ltd., ISSN: 0264-1275, Volume 99, 2016, Page No. 135-144. Author: S. Gao, C.S. Wu, Girish Kumar Padhy, L. Shi
'Local microstructure evolution in Al 6061-T6 friction stir weld nugget enhanced by ultrasonic vibration', Materials and Design, Elsevier Ltd., ISSN: 0264-1275, Volume 92, 2016, Page No. 710-723. Author: Girish Kumar Padhy, C.S. Wu, S. Gao, L. Shi
'Auxilliary energy assisted friction stir welding - status review', Science and Technology of Welding and Joining, Maney, ISSN: 1362-1718, Volume 20, No. 8, 2015, Page No. 631-649. Author: Girish Kumar Padhy, C.S. Wu, S. Gao
'Influence of temperature and alloying on the apparent diffusivity of hydrogen in high strength steel', International Journal of Hydrogen Energy, Elsevier Ltd., ISSN: 0360-3199, Volume 40, 2015, Page No. 6714-6725 . Author: Girish Kumar Padhy, V. Ramasubbu, N. Parvathabarthini, S. K. Albert, C. S. Wu
'Improved weld macrosection, microstructure and mechanical properties of 2024Al-T4 butt joints in ultrasonic vibration enhanced friction stir welding', Science and Technology of Welding and Joining, Maney, ISSN: 1362-1718, Volume 20, 2015, Page No. 345-352. Author: X. C. Liu, C. S. Wu, Girish Kumar Padhy
'Characterization of plastic deformation and material flow in ultrasonic vibration enhanced friction stir welding', Scripta Materialia, Elsevier Ltd., ISSN: 1359-6462, Volume 102, 2015, Page No. 95-98. Author: X. C. Liu, C. S. Wu, Girish Kumar Padhy
'Rapid determination of diffusible hydrogen in steel welds using a modified gas chromatography facility', Journal of Testing and Evaluation, ASTM International, ISSN: 0090-3973, Volume 43, No. 1, 2015, Page No. 69-79. Author: Girish Kumar Padhy, V. Ramasubbu, S. K. Albert,
'Hydrogen Distribution and hydrogen cracking susceptibility of a Martensitic austenitic steel welding wire', Materials Letters, Elsevier Ltd., ISSN: 0167-577X, Volume 136, 2014, Page No. 22-25. Author: Girish Kumar Padhy, H. Terasaki, Y. Komizo
'A brief review on methods for diffusible hydrogen measurement in welds', Indian Welding Journal, Indian Institute of Welding , ISSN: 0046-9092, Volume 47, No. 2, 2014, Page No. 101-113. Author: S. K. Albert, Girish Kumar Padhy
'Diffusible hydrogen in steel weldments: a status review', Transactions of JWRI, Joining and Welding Research Institute, Osaka University, ISSN: 0387-4508, Volume 42, No. 1, 2013, Page No. 39-62. Author: Girish Kumar Padhy, Y. Komizo
‘Determination of apparent diffusivity of hydrogen in 9Cr-1MoVNbN steel using a hot extraction-PEMHS technique’ International Journal of Hydrogen Energy, Elsevier Ltd., ISSN: 0360-3199, Volume 38, No. 25, 2013, Page No. 10683-10693, Author: Girish Kumar Padhy, V. Ramasubbu, N. Murugesan, N. Parvathabarthini, C. Remash, S. K. Albert
‘Hot extraction of diffusible hydrogen and its measurement using a hydrogen sensor’ Welding in the World , Springer, ISSN: 0043-2288 Volume 56, No. 7/8, 2012, Page No. 18-25, Author: Girish Kumar Padhy, V. Ramasubbu, N. Murugesan, C. Remash, S. K. Albert
‘Effect of preheat and post heating on the diffusible hydrogen content of welds’, Science and Technology of Welding and Joining, Maney, ISSN: 1362-1718, Volume 17, No. 5 2012, Page No. 408-413. Author: Girish Kumar Padhy, V. Ramasubbu, N. Murugesan, C. Remash, S. K. Albert
‘Diffusible hydrogen measurement in steel welds using an electrochemical hydrogen sensor ', Indian Welding Journal, Indian Institute of Welding , ISSN: 0046-9092, Volume 45, No. 1, 2012, Page No. 35-46. Author: Girish Kumar Padhy, V. Ramasubbu, N. Murugesan, C. Remash, S. K. Albert
'Developing a sensor for measuring diffusible hydrogen' Welding Journal, American Welding Society, ISSN: 0043-2296, Volume 90, No. 3, 2011, Page No. 47-53. Authors: Girish Kumar Padhy, V. Ramasubbu, N. Murugesan, C. Remash, S. K. Albert:
Conference Papers
‘Microstructure evolution of AA 6061-T6 weld joints in ultrasonic vibration enhanced friction stir welding’, THERMEC’2016, May 29 - June 3, 2016, Graz University of Technology, Graz, Austria. Organizer: The Minerals, Metals & Materials Society. Authors: C. S. Wu, Girish Kumar Padhy, S. Gao.
‘Experimental characterization and numerical simulation of ultrasonic energy enhanced FSW’, 11th Symposium on FSW, May 17-19, 2016, TWI Ltd., Cambridge, UK. Organizer: TWI, UK. Authors: C. S. Wu, S. Gao, Girish Kumar Padhy, L. Shi.
‘Research progress and trend in secondary energy assisted FSW’, 6th International Conference on Welding Science and Engineering (WSE2015), September 20-23, 2015, Tsinghua University, Beijing, China, p. 261-265. Organizer: Department of mechanical engineering, Tsinghua University. Authors: Girish Kumar Padhy, C. S. Wu, S. Gao.
Simulation of specimen analogous to weld metal for hydrogen distribution analysis’, Prodceedings ID: VJW2014-P0036, Proceedings of Visual JW-2014, November 26-28, 2014, Osaka, Japan. Organizer: Joining and Welding Research Institute, Osaka University. Authors: Girish Kumar Padhy, H. Terasaki, Y. Komizo.
‘Analysis of hydrogen distribution and trapping in 14Cr-(4-9)Ni steel welds’, JWS Internal Meeting, September 23-26, 2014, Tokyo, Japan. Organizer: Japan Welding Society. Authors: Girish Kumar Padhy, H. Terasaki, Y. Komizo.
‘Hydrogen diffusivity in steel and diffusible hydrogen content in steel welds’, Proceedings of IIW International Congress, April 9-11, 2014, New Delhi, India. Organizer: International Institute of Welding. Authors: S.K. Albert, Girish Kumar Padhy.
‘Measurement of diffusible hydrogen and hydrogen diffusivity using a newly developed hydrogen sensor’, Paper ID: 512, National Welding Seminar, February 7-9, 2013, Bangalore, India. Organizer: Indian Institute of Welding. Authors: Girish Kumar Padhy, V. Ramasubbu, S. K. Albert.
‘A new gas chromatography facility for rapid determination of diffusible hydrogen in steel welds’, Paper ID: 263, National Welding Seminar, February 7-9, 2013, Bangalore, India. Organizer: Indian Institute of Welding. Authors: Girish Kumar Padhy, V. Ramasubbu, K. R. Rangarajan, M. K. Singari, S. K. Albert.
‘Hot extraction of diffusible hydrogen and its measurement using a hydrogen sensor’, 64th Annual Assembly and International Conference of International Institute of welding, July 17-22, 2011, Chennai, India. Organizer: International Institute of Welding. Authors: Girish Kumar Padhy, V. Ramasubbu, N. Murugesan, C. Remash and S.K. Albert.
‘Diffusible hydrogen measurement in steel welds using an electrochemical hydrogen sensor’, National Welding Seminar, December 21-23, 2010, Visakhapatnam, India. Organizer: Indian Institute of Welding. Authors: Girish Kumar Padhy, V. Ramasubbu, N. Murugesan, C. Remash and S.K. Albert.
‘Diffusible hydrogen measurement in welding consumables using a new proton exchange membrane based hydrogen sensor’, National Welding Seminar, February 4-6, 2009, Mumbai, India. Organizer: Indian Institute of Welding. Authors: Girish Kumar Padhy, V. Ramasubbu, N. Murugesan, C. Remash and S.K. Albert.
Honors and Awards
STWJ Best Paper Prize for the paper "Improved weld macrosection, microstructure and mechanical properties of 2024Al-T4 butt joints in ultrasonic vibration enhanced friction stir welding’ by X. C. Liu, C. S. Wu and G. K. Padhy (STWJ 2015, Vol. 20, No. 4, p. 345-352)" in 2016
The Research Fund for International Young Scientists, National Natural Science Foundation of China. Grant No. 51550110501 (Jan. 2016-Dec 2016)
The Fellowship of the China/Shandong University International Postdoctoral Program (Oct. 2015-Sept. 2016)
The Research Fund for International Young Scientists, National Natural Science Foundation of China. Grant No.51450110435 (Jan. 2015-Dec 2015)
The Fellowship of the China/Shandong University International Postdoctoral Program (Oct. 2014-Sept. 2015)
Weldwell Specially Award for best Ph. D Thesis in IIW International Congress, 2014, New Delhi, India by Indian Institute of Welding (10th April 2014)
ESAB India Award for best paper among all categories in IIW International Congress, 2014, New Delhi, India
ESAB India Award for best paper among all categories in National Welding Seminar, 2010, Visakhapatnam, India
Senior Research Fellowship of Department of Atomic Energy, India in 2009
Junior Research Fellowship of Department of Atomic Energy, India in 2007
ADDRESS
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