gsm.met's picture
Dr. Girija Shankar Mohobia
Associate Professor
Department of Metallurgical Engineering Indian Institute of Technolog
gsm.met@iitbhu.ac.in
9889296522
Area of Interest: 
Corrosion-Fatigue, Hot corrosion, Iron and Steel making, Welding Metallurgy, Metallurgical failure analysis

Dr. GS Mahobia is graduated ( Met. Engg.) in 2001 from GEC-Raipur (now NIT-Raipur); post graduated ( Met.Engg.) in 2003 from IT-BHU (Now IIT-BHU) Varanasi and obtained doctoral degree ( Met. Engg.) in 2013 from Department of Metallurgical Engineering, IIT-BHU, Varanasi. He joined M/s Jindal Steel and Power Limited (JSPL) - Raigarh (CG) in 2003 as an engineer in DRI plant. He has obtained experience in operating 300MT rotary kiln for sponge iron production. Dr. Mahobia joined M/s Larsen and Toubro Ltd.-Heavy Engineering Division (HED) - Surat (Gujarat) in 2004 as a PGET and rose to the level of Assistant Manager in Welding Engineering and Metallurgy. He had contributed significantly in the area of welding development, heat treatment and failure analysis up to the period of 2007. He has been awarded 1st Rank in 'Manthan' ( a focussed improvement system),  2005 and a certificate of merit for the implementation of GMAW process of welding for the first time in L&T-Surat. He has also qualified as a Six Sigma Green Belt in 2006 by Qimpro College-USA. Dr. Mahobia, joined Metallurgical Engineering Department (IT-BHU) as Lecturer on 17th September 2007 and promoted to Associate Professor in 16th October 2015. 

 

S. No. Author(s) Year Title Complete Reference of Journal
A). International Journals:
1 G. Sudhakar Rao, Preeti Verma, J.K. Chakravartty, Saibaba Nudurupati, G.S. Mahobia, N.C. Santhi Srinivas, and  Vakil Singh 2015 Inverse strain rate effect on cyclic stress response in annealed Zircaloy-2 Journal of Nuclear Materials      457 (2015) 330-342, ISSN:0022-3115,
 (IF: 1.865)
2  
G. S. Mahobia, Neeta Paulose,
K. Sreekanth, S. L. Mannan, G. Sudhakar,Rao & Vakil Singh
2015 Effect of saline environment on low cycle fatigue behaviour of superalloy IN718 at 550°C Journal of Materials Engineering and Performance
24(1) 2015,338-344, ISSN:1059-9495,
(IF: 0.998)
 
3
PreetiVerma, G.SudhakarRao, P.Chellapandi, G.S.Mahobia, Kausik Chattopadhyay, N.C. SanthiSrinivas, and VakilSingh 2015 Dynamic strain aging, deformation and fracture behavior of modified 9Cr-1Mo steel Material Science and Engineering A,
621 (2015) 39-51, ISSN :0921-5093, (IF: 2.567 )
 
4
G. Sudhakar Rao, J.K. Chakravarty, N. Saibaba, G.S. Mahobia, K. Chattopadhyay, N.C. Santhi Srinivas, V. Singh 2014
 
Disappearance and reappearance of serrated plastic flow under cyclic loading: a study of dislocation substructures Material Science and Engineering A,
603 (2014) 114-120, ISSN :0921-5093, (IF:2.567)
 
5
Sanjeev Kumar, R.G. Sudhakar,  K. Chattopadhyay, GS Mahobia,  N.C. Santhi Srinivas, and Vakil Singh 2014
 
Effect of Surface Nanostructure on Tensile Behaviour of Superalloy IN718 Materials and Design,
62 (2014),76-82, ISSN:0261-3069, (IF:3.501)
 
6
G.S. Mahobia, Neeta Paulose, S.L.Mannan, R.G. Sudhakar, K. Chattopadhyay,  N.C. Santhi Srinivas, Vakil Singh 2014 Effect of hot corrosion on low cycle fatigue Behavior of superalloy IN718 International Journal of Fatigue, 59(2014) 272-281, ISSN:0142-1123, (IF:2.275)
 
7
 
G.S. Mahobia, Neeta Paulose and Vakil Singh
2013 Hot corrosion behavior of superalloy IN718 at 550° and 650°C Journal of Materials Engineering and performance, 22(4) (2013) 2418-2435, ISSN:1059-9495, (IF:0.998)
 
8
G. Sudhakar Rao, J.K. Chakravarty, N. Saibaba, G.S. Mahobia, K. Chattopadhyay, N.C. Santhi Srinivas, V. Singh 2013 Low cycle fatigue behavior of Zircalloy-2 at room temperature Journal of Nuclear Materials,441(2013) 455-467, ISSN:0022-3115,
(IF: 1.865)
 
9
G.S. Mahobia, Neeta Paulose, S.L. Mannan, K. Chattopadhyay, N.C. Santhi Srinivas &   Vakil Singh, 2013 Tensile behavior of superalloy IN718 in hot corrosive environment Journal of Materials Engineering and Performance,
22(12) (2013) 3810-3817,, ISSN:1059-9495, (IF:0.998)
10 G.S. Mahobia, Sudhakar R.G, Ajesh Antony, K. Chattopadhyay, N.C. Santhi Srinivas, Vakil Singh 2013 Effect of Salt Coatings on low Cycle Fatigue Behavior of Nickel Base                 Superalloy GTM-SU-718 Procedia Engineering,
55 (2013) 830-834, ISSN:1877-7058
(IF:0.629)
         
11 Sanjeev Kumar, K. Chattopadhyay, GS Mahobia,  and Vakil Singh 2016 Hot corrosion behavior of Ti-6Al-4V modified by ultrasonic shot peening Materials and Design,
110 (2016),196-206, ISSN:0261-3069, (IF:3.501)
12 Raj Kumar Dishwar, Shavi Agrawal, A.K. Mandal ,G.S. Mahobia, And O.P. Sinha 2017 Effect of Reduced Flux Iron Ore Pellets on Removal of
Impurities from Pig Iron During Induction Melting: A New
Phenomenon

The Journal of The Minerals, Metals & Materials Society (TMS)

ISSN: 1047-4838 (Print) 1543-1851 (Online)
(IF:1.860)

13 Dhananjay Pradhan, Girija Shankar Mahobia, Kausik Chattopadhyay, Vakil Singh 2018 Effect of surface roughness on corrosion behavior of the superalloy IN718 in simulated marine environment Journal of alloys and compounds 740(2018) 250-263, ISSN:0925-8388, (IF: 3.133)
14 Dhananjay Pradhan, Girija Shankar Mahobia, Kausik Chattopadhyay and Vakil Singh 2018 Salt induced corrosion behaviour of superalloy IN718 Materials Today: Proceedings 5 (2018) 7047–7054, ISSN:2214-7853, (IF: 3.133)
15 Dhananjay Pradhan, Girija Shankar Mahobia, Kausik Chattopadhyay and Vakil Singh 2018 Effect of pre hot corrosion on high cycle fatigue behavior of the superalloy IN718 at 600 °C International Journal of Fatigue, 114(2018) 120-129, ISSN:0142-1123, (IF:2.275)
16 Dhananjay Pradhan, Girija Shankar Mahobia, Kausik Chattopadhyay, and Vakil Singh, 2018 Severe Hot Corrosion of the Superalloy IN718 in Mixed Salts of Na2SO4 and V2O5 at 700°C Journal of Materials engineering and performance,27 (8), (2018), 4235-4243
 
17 Sharvan Kumar, Biswajeet Satapathy, Dhananjay Pradhan and GS Mahobia 2019 Effect of surface modification on the hot corrosion resistance of
Inconel 718 at 700°C
Materials Research Express, 6(2019)085649
18 Chandra Shekhar Kumar, Girija Shankar Mahobia, Arijit Podder, Sanjeev Kumar, Rahul Kumar Agrawal, Kausik Chattopadhyay and Vakil Singh 2019 Role of ultrasonic shot peening on microstructure, hardness and corrosion resistance of nitrogen stabilised stainless steel without nickel Materials Research Express, 6(2019)096578
19 Manish kumar Singh; Girija Shankar Mahobia; OP Sinha;  and Vakil Singh 2019 Effect of Synthetic Biomass Ash on High Temperature Corrosion Behavior of Super Austenitic Stainless Steel 904L Materials Research Express 6(2019) 0965d3
20 Dhananjay Pradhan; Girija Shankar Mahobia;  K Chattopadhyay.; Fernando, D; Paulose, Neeta; Babu, S N; and Vakil Singh 2019 Effect of stress ratio and mean stress on high cycle fatigue behavior of the superalloy IN718 at elevated temperatures Materials Research Express 6(2019) 0965a6
21 Pramod Kumar, K Chattopadhyay
Girija Shankar Mahobia
2019 Enhancement in Fatigue Life of Ti-13Nb-13Zr Alloy through Ultrasonic Shot Peening Key Engineering Materials, 813:122-128
22 Girija Shankar Mahobia, Chandra Shekhar Kumar
K Chattopadhyay
2019 Nanocrystallisation of Nickel Free High Nitrogen Austenitic Stainless Steel through Ultrasonic Shot Peening Key Engineering Materials, 813:43-48
23        

Research Projects: 10 (Completed: 7, In progress: 2, Submitted: 1):
 

S.No. Period Sponsoring Organization Title of Project Amount of Grant (Rs.) PI/Co-PI
1 2016-2019  
(In progress)           
Ministry of steel,      Steel Development Fund, Govt. of India Development of nickel free high nitrogen austenitic stainless steels for biomedical applications 2,84,44,800 PI
2 2016-2021
(In progress)           
Ministry of steel, Steel Development Fund, Govt. of India Setting up an Advance Research center for Iron and steel at IIT(BHU) 30,98,00,000 Co-PI
3 2016-17
(Completed)
Design and Innovation centre (DIC) - IIT (BHU) Design and development of hot corrosion test facility to study hot corrosion behaviour of materials used in marine environment. 3,00,000 PI
4  2015  
(Completed)       
Design and Innovation Hub-IIT (BHU) Biocomapbility of indigenously developed High Nitrogen Stainless Steel 40,000 PI
5 2014-2015 (Completed) IIT (BHU)-Varanasi under ‘sprouting grant for faculty (SGF)’ Hot deformation behavior of indigenously developed nitrogen bearing stainless steels for critical applications 20,00,000 Co-PI
6 2014 (Submitted) DRDO, New Delhi  (In collaboration with GTRE-Bangalore) Study on effect of temperature,  strain ranges and environment on LCF strength of Turbine Disk Materials 2,59,31,680 Co-PI
7 2014 -15  (Completed) Gas Turbine Research Establishment (GTRE) – Bangalore Effect of Mean Stress on High Cycle Fatigue (HCF) Properties of  GTM-SU-718 Alloy 9,06,000 Co-PI and PI
8 2010-11 (Completed) Gas Turbine Research Establishment (GTRE) – Bangalore Exploratory work on LCF testing of GTM-SU-718 in salt environment 6,85,000 Co-PI and PI
9 2009 -2014
(completed)
Board of Research in Nuclear Science (BRNS) – (Mumbai) Evaluation of cyclic deformation behavior of structural materials for advanced nuclear applications 71,93,000 Co-PI
10 2008-2009
(completed)
 IT-BHU, Varanasi Hot deformation behavior of high nitrogen stainless steel        45,000 PI

 
 

 - Life Member Indian Institute of Metals (IIM)-Kolkata
 - Life Member Electron Microscopy Society of India (EMSI)-Mumbai
 - Life Member Mahamana Malaviya Foundation, Varanasi
 - Life Member Indian Nuclear Society (INS)-Mumbai

 

- Behind the teachers desk Award (BTTD)  (2019) from M.Tech project
- Long Service (8years) honor in the hostel sector from Chairman Council of Wardens (2018)
- Behind the teachers desk Award (BTTD)  (2013) from B.Tech project
- First rank in Ferrous metallurgy project   (2012)
- Green belt in six sigma (2006)
- Ranked First in ‘Manthan’-L&T-Surat (2005)
- Best student award in Metallurgical Engineering, GEC-Raipur (2000)

- Corrosion fatigue Laboratory (100kN Material Test System procured from MTS-USA):
   One can perform Low Cycle Fatigue, High Cycle Fatigue test in air and corrosive media both at room and high temperatures.
- Hot corrosion set up: Two Zone Tube furnace, Salt coating Unit
- Heat treatment furnace
- Rolling Mill (cold and hot)
- Heating and Melting units

 
PhD : 

S.N. Details of students Title of the project Superviosr/Co-supervisor Year Status
1 Dhananjay Pradhan Hot corrosion and HCF behavior of superalloy IN718 Supervisor 2013-2019 Awarded
2 Manish Kumar Kishore Singh Oxidation and hot corrosion behavior of 904L superautenitic stainless steel in Biomass ash enviornment Supervisor 2013 In progress
3 Chnadrashekhar Effect of USSP on fatigue and biocompatibility  behavior of Ni free austenitic stainless steel Supervisor 2016 In progress
4 Sharvan Kumar Metal dusting, Erosion and hot corrosion behavior of Ni free austenitic stainless steel Supervisor 2017 In progress

 
 5Yr. Dual Degree and M.Tech. (Metallurgical Engineering) : 

S.N. Name of the student Title of the project Year Status
1 Kundan Kumar Effect of reduction on swelling behavior of iron ore pellets 2011-12 Completed
2 Srinibash Mishra Hot corrosion behavior of Ni-based superalloy IN718 2011-12 Completed
3. Piyush Kumar Mechanical behavior of 9Cr-1Mo steel 2011-12 Completed
4 Sidharth srivastava Characterization of LCF behavior of Zircalloy-2 at different temperatures 2012-13 Completed
5 Shailendra Bahadur Singh Characterization of LCF behavior of Cr-Mo steels at different temperatures 2012-13 Completed
6 Mukesh Kumar Low cycle fatigue behavior of superalloy IN718 in a hot corrosive environment 2013-14 Completed
7 Arvind Kumar Verma Effect of selective preoxidation of Cr on hot corrosion resistance of superalloys 2013-14 Completed
8 Sailendra Pratap Singh Effect of marine environment on superalloy IN718 used for turbine applications 2013-14 Completed
9  Ms Khooshbu Devi Effect of nitrogen purging on mechanical and wear nproperties of hypereutectic Al-Si alloy 2014-15 Completed
10 Sarvesh Mundra High cycle fatigue properties of IN718 alloy 2014-15 Completed
11 Vaibhav Goyal Characterization of high Nitrogen stainless steel synthesized through induction melting 2015-16 Completed
12 Mudit Kedia Characterization of high Nitrogen stainless steel through Plasma melting 2015-16 Completed
13 Sankata Tiwari Effect of salt coating methods on hot corrosion behavior of alloy718 2015-16 Completed
14 Rajkumar Dishwar Study on characterization of reduced flux pellets for melting 2015-16 Completed
15 Abhijit Kumar Singh Yadav Briquetted Iron Technology using biocoal as a reductant – feasibility study 2016-17 Completed
16 Sarvan Kumar Pack aluminizing of IN718 Ni-based superalloy 2016-17 Completed
17 Biswajeet Satapathy Development of advanced test facility for research in marine enviornment 2016-17 Completed
18 Ms Neha Gupta Development of double layer iron ore flux pellet for better strength and weather resistance 2017-18 Completed
19 G. Mohan Kumar Erosion and hot corrosion on 904L super grade austenitic stainless steel 2017-18 Completed
20 Biswajit Mishra Palletization behavior of Multi metallic ore from Nagaland 2018-19 Completed
21 Sarique Ansari Failure investigation of orthopedic implants 2019-20 In progress
22 Sabyasachi HCF behavior of stainless steel in corrosive enviornment 2019-20 In progress

 
 

 

- Member of organizing committee for National Seminar on ‘Emerging trends in Iron and Steel Technology’-11-12th December 2010, Department of Metallurgical Engineering, IT-BHU​
- Member, National Conference on Iron and Steel Technologies-Research & Application (ISTRA-2012), 14-15th December2012, Department of Metallurgical Engineering, IIT (BHU)
- Joint General Convener of National Seminar on ''Environmental Management in Metallurgical Industries (EMMI) – 2010'', March 15-16, Department of Metallurgical Engineering., IT-BHU
- Delegate-conference on “Demand of Iron & Steel in India”, organized by Steel Guru, March 2012
- Working as a tabulator for the preparation of results (2008 to present)
- Acted as an Invigilator in various examinations conducted by BHU/IT-BHU/IIT-BHU
- Member-R&D-Committee IIT (BHU) ( 04/02/2013 to 18/07/2013)
- Member-University Club-BHU, Varanasi
- Member secretary- Departmental Project Purchase Committee (DST project: P07/479)
- Member-General maintenance, Up keeping and Whitewashing, NMD-ATM-2013
- Member-Accommodation, Reception and Transport committee, NMD-ATM-2013
- Member-Department Undergraduate committee (DUGC), 2013-14
- Nominee-Dean (R&D) for a CSIR project in Ceramic Engineering, 2013
- Member-Summer Training and Industrial Tours committee of the Department,2013-14
- Member-Metallurgical Society-Department of Metallurgical Engineering-IIT (BHU)
- Member-PhD admission committee, Department of Mining Engineering, 2013, 2014
- Participated in Interdisciplinary faculty development program (one week), organized by Department of Metallurgical Engineering-IT BHU during 6th -12th Dec. 2010
- Member-oral examination committee for M.Tech. dissertation in Mechanical Engineering, IIT (BHU)-2014
- Nominee-Dean (R&D) for a SGF project in Mining Engineering, 2014
- Facilitated successful completion of 7 UP Air Sqn NCC (BHU, Varanasi) camp at Vishvarshwaraya hostel during last week of May 2014 and received a letter of appreciation
- Member-Department postgraduate committee (DPGC), 2014-16
- Member-Department library committee, 2014-16
- Convener-Hostel allotment committee, 2015-16
- Member-Hostel Mess & Canteen Guidelines Committee, 2015-16
- Member secretary, IIT-Cafeteria sub-committee, 2015-16
-  Mentor TIFAC-MSME Internship program (Metal Craft-VNS), 2015
- Mentor Google online Marketing challange-2015
- Member- Local organizing committee, 20th Symposium & workshop on thermal analysis, THERMANS-2016, DAE-BRNS, 18th -22nd January 2016, Department of Physics, IIT (BHU)-Varanasi
- Professor In charge of Maitri Shield - Metallurgical Society, Department of Metallurgical Engineering, IIT (BHU), 2015-18
- Department Coordinator, Institute Day-2015.
- Attended short and advanced Workshop on Harmony (2015).
- MOODLE enabled faculty at IIT (BHU)-Varanasi (2014).
- Actively participated in a Cleanliness Drive Program - 2015.
- Prepared Prof. NP Gandhi Memorial Lecture (NMD-ATM-14.)
- Chairman-Hostel Disciplinary and Vigilance Committee, 2017-18
- Convener-DUGC, Metallurgical Engineering, 2016-18.
- Co-Coordinator-Tinkering Lab, Metallurgical Engineering 2016-17.
- Member – EMSI-2016, International conferene on Electron Microscopy, June 2-4, 2016
- Core Committee Member, Institute Day committee-2016-18
- Member, Convocation Accommodation Committee, 2015-18.
- Member, Research Committee, Center for Excellence in Steel Technology (CoExiST), IIT(Madras)
- Actively involved in student activities like Anveshan, Technex, Internship Programs & Technical Tours.
- Principal Member-, Sponge Iron and Smelting Reduction Sectional committee, MTD30,  Bureau of Indian Standards (BIS), New Delhi.(2016-18)
- Expert member-selection committee for Metallurgy, MNIT-Allahabad (UP).
- Member – Department R&D committee, 2018
- Member- Student Parliament Election duty, 2016-17
- Member-Departmental store stock physical verification committee, 2015-17
- Member-Purchase and technical committee, ARCIS, Department of Metallurgical Engineering, IIT(BHU)
- Member-Selection committee, PG admissions, Department of Metallurgical Engineering, IIT(BHU), 2015
- Member-Course Review committee, Department of Metallurgical Engineering, IIT(BHU), 2018
- Member-Department Undergraduate committee (DUGC), 2018
- Member-Condemnation committee, 2018-19, Department of Metallurgical Engineering, IIT(BHU).
- Member-Hostel award committee, 2019, Department of Metallurgical Engineering,  IIT(BHU).
- Member - Orientation program 2019-20
- Coordinator - QIP short term course on Metallurgical Failures, 18-23 Feb. 2019