Sourav Das

Detail list of patents and publications

A. Patents (Filed and granted):

1. A portable system and method for in-situ tensile testing in high pressure gaseous environment including hydrogen; S. Shukla, S. Mishra, R. Chowdhury and S. Das, Application number: 202411008299, dated 07/02/2024

2. A low density steel with excellent strength elongation combination and its method of preparation thereof; S. Bhan, P. Rawat, S. Das and S. Ghosh, Application number. 202311065276, Published on 28.09.2023, Patent number 573570,

3. A cold rolled bainitic steel with high strength and high elongation; S. Yadav, S. B. Singh, R. Chowdhury and S. Das; Application No. 202211044546, Published on 02/06/2023, Patent Number: 557569

4. A hot-rolled continuously cooled bainitic steel composition and its method of preparation; S. Yadav, S. B. Singh, A. Haldar, S. Das; Application No. 202311031490, Published on 06/10/2023, Patent number: 566130

5. An improved process to produce hot rolled dual phase (DP) steel with a mixed microstructure of about 85-90% polygonal ferrite and 10-15% martensite to deliver minimum 600 MPa; M. Mukherjee, A. R. Chintha, B. Bhattacharya, A. Haldar, S. Das and S. Kundu

6. Bainitic steel of high strength and high elongation and method to manufacture said bainitic steel; S. Das, S. Kundu and A. Haldar, Govt. number: PCT / IN2012 / 000371, dated 28.05.2012; International publication: WO 2012 / 164579 A4, dated 06.12.2012; US publication: US 2014 / 0102600 A1, dated 17.04.2014; EU publication: EP 2714947 B1 granted on 19^th July 2017; Korean publication: KR 20140014234 A, dated 02.05.2014; Japan publication: JP 2014516388 A, dated 07.10.2014; China publication: CN 103429766 A

7. Development and design of bainitic steel with minimum 1300 MPa UTS and minimum 20% elongation through continuous cooling; S. Das, A. Lodh, S. Kundu and A. Haldar, Govt. number: 290 / KOL / 2012, dated 15. 03.2012

8. Designing fully bainitic steel with minimum 400 VHN (~1200 MPa UTS) with minimum 20% retained austenite through continuous cooling; S. Das, S. Kundu, A. Haldar; Govt. number: 736 / KOL / 2011 / Dated 30. 05. 2011, Grant number: 347142

9. Development of low carbon fully pearlitic steel for wire rod application; S. Das, S. Kundu and A. Haldar; Govt. number: 226 / KOL / 2011 Dated 23. 02. 2011, Grant number: 414157

10. 1000 MPa hot rolled steel sheet with high hole expandability for automotive chasis application and method of producing the same; G. Jha, A. Haldar, S. Das, T. Bhattacharyya; Govt. number: 886/ KOL / 2011 / dated 01.01.2011, Grant number: 395574

B. Book / Book Chapter (* represents corresponding author):

1. Proceedings of the 3^rd International Conference on Advances in Materials Processing: Challenges and Opportunities (AMPCO 2022) held in IIT Roorkee, Editors: Abhishek Tiwari, Nikhil Dhawan, Gautam Agarwal, Sourav Das, Sumeet Mishra and Anish Karmakar, published by Springer 2023

2. “Microalloyed steel”, S. Das*, A. Karmakar and S. B. Singh, Accepted for publication in “High performance ferrous alloys”, pp. 83-112, Springer-Nature AG, 2021

3. “Bake hardening”; S. Das*, S. B. Singh and O. N. Mohanty, in Encyclopedia of Iron, Steel and Their Alloys, pp. 306-319, Taylor and Francis: New York, 2016

C. Published in different journals (* represents corresponding author):

1. Improving the wear resistance of AISI 4340 steel by tungsten inert gas (TIG) arcing: Effect of current, S. Surbhi, S. Balbande and S. Das*, Tribology International, https://doi.org/10.1016/j.triboint.2026.112688, Vol. 26, 112688, 2027

2. Multi-scale mechanisms governing tension-compression asymmetry in a T6-treated Al-Cu-Ni-Mn-(Sc, Zr, Ti) cast alloy: Particle damage, precipitate interactions and texture evolution, D. Mukherjee, Y. Tiwari, S. Balbande, K. Barat, H. Roy, S. Das, N. Mandal, S. Samanta and M. Mukherjee, Engineering Fracture Mechanics, 10.1016/j.engfracmech.2026.112730, Vol. 347, 112730, 2026

3. Role of prior austenite grain size on the thermodynamics and kinetics of its transformation, A. S. Rajput, A. R. Kumar, S. Ghosh, S. B. Singh and S. Das*, Steel Research International, https://doi.org/10.1002/srin.70708, 2026

4. On the outstanding high temperature strain hardening of carbide free bainitic steel, S. Kishore, T. M. David, D. Chakrabarti, S. Mishra and S. Das*, International Journal of Plasticity, https://doi.org/10.1016/j.ijplas.2026.104796 , Vol. 205, pp. 104796, 2026

5. Microstructure modulation through process control leading to ultrastrong ductile Fe-10Al-15Mn-0.8C-5Ni wt% low density steel, S. Ghosh and S. Das, Steel Research International, Accepted manuscript, https://doi.org/10.1002/srin.202501163 , Available online, 2026

6. Anomalous extent of degradation of tensile properties of pipeline grade steel due to exposure in hydrogen, S. Shukla, T. Bankar, S. Das Bakshi and S. Das*, International Journal of Hydrogen Energy, https://doi.org/10.1016/j.ijhydene.2025.151939, Vol. 184, pp. 151939, 2025

7. Tensile deformation behavior of a thermally exposed carbide free bainitic steel; S. Kishore, S. Mishra and S. Das^*, Materials Science and Technology, DOI: https://doi.org/10.1177/02670836241273461, Vol. 41, Issue 13, pp. 946-961, 2025

8. Design and development of cold rolled carbide free bainitic steel through microstructural engineering, S. Yadav, A. Haldar, S. B. Singh and S. Das*, Accepted manuscript, Materials Science and Technology, https://doi.org/10.1177/02670836251327848, 2025

9. Development of fully pearlitic microstructure in a hypoeutectoid steel, S. Yadav, A. Haldar and S. Das, Journal of Materials Engineering and Performance, DOI: https://doi.org/10.1007/s11665-024-09488-2, Vol. 34, pp. 4830-4837, 2025

10. Abrasive wear behaviour of continuously cooled carbide-free bainitic steel, A. S. Rajput and S. Das*, Wear, https://doi.org/10.1016/j.wear.2025.205951, Vol. 570, pp. 205951, 2025

11. Effect of TIG-arcing speed on the microstructure vis-à-vis mechanical behaviour of surface modified low carbon steel, S. Balbande, S. Rai, G. Agarwal and S. Das*, https://doi.org/10.1016/j.wear.2025.205924, Wear, Vol. 570, pp. 205924, 2025

12. Effect of tempering conditions on microstructure evolution and sliding wear behaviour of continuously cooled carbide-free bainitic steel, A. S. Rajput, S. P. Neog and S. Das^*, Tribology International, DOI: https://doi.org/10.1016/j.triboint.2025.110519, Vol. 204, pp. 110519, 2025

13. Microstructural characterization and mechanical behaviour of steel surface modified with in situ grown tantalum carbide through TIG arcing; S. Balbande, N. K. Paraye, G. Agarwal and S. Das*; Metallurgical and Materials Transactions A, DOI: 10.1007/s11661-024-07444-2, Vol. 55, pp. 2897-2912, 2024

14. Microstructure-texture-mechanical property correlation in laser-welded dual-phase and interstitial-free steel blanks, V. B. Vukum, T. Ray, A. Karmakar and S. Das*, Journal of Materials Engineering and Performance, DOI: https://doi.org/10.1007/s11665-023-07959-6, Vol. 33, 318-329, 2024

15. Origins of strength, strain hardening and fracture in B2 tailored Fe-0.8C-15 Mn-10 Al-5 Ni wt pct austenitic low density steel; S. Bhan, P. Rawat, S. Das and S. Ghosh, Metallurgical and Materials Transactions A, DOI: https://doi.org/10.1007/s11661-023-07155-0, Vol. 54, 4080-4099, 2023

16. A machine learning approach to predict the wear behaviour of steels, A. S. Rajput and S. Das*, Tribology International, DOI: https://doi.org/10.1016/j.triboint.2023.108500, Vol. 185, pp. 108500, 2023

17. Insights into the stability of retained austenite during wear, S. P. Neog, A. Lodh, A. Karmakar, A. G. Nair, A. Dasgupta, S. Das Bakshi, S. Das*, Philosophical Magazine, DOI: ttps://doi.org/10.1080/14786435.2022.2139421, Vol. 103, No. 3, 2023, 203-222

18. Quantification of shear strain development in the through thickness direction during sliding wear, S. P. Neog, A. G. Nair, A. Dasgupta, S. Das Bakshi, S. Das*, Metallurgical and Materials Transactions A, DOI: https://doi.org/10.1007/s11661-022-06901-0, Vol. 54, 2023, pp. 11-15

19. Surface modification of steel via in-situ formed tantalum carbide through TIG arcing; S. Balbande, N. K Paraye and S. Das*, Metallurgical and Materials Transactions A, DOI: https://doi.org/10.1007/s11661-022-06850-8, Vol. 54, 2023, pp. 1-5

20. Surface modification by in-situ grown TiC in bainitic matrix using TIG arcing; N. K. Paraye, A. Karmakar, P. K. Ghosh and S. Das*; Materials Science and Technology, DOI: https://doi.org/10.1080/02670836.2022.2070966, Vol. 38, Number 4, 2022, pp. 1095-1109

21. Understanding the complexities of dry sliding wear behaviour of steels; S. P. Neog, A. R. Kumar, S. Das Bakshi and S. Das^*, Materials Science and Technology, DOI: https://doi.org/10.1080/02670836.2021.1923136,Vol. 37, Number 5, 2021, pp. 504-518

22. Effect of normal loading on microstructural evolution and sliding wear behaviour of novel continuously cooled carbide free bainitic steel, S. P. Neog, S. Das Bakshi, S. Das^*,_,Tribology International, DOI: https://doi.org/10.1016/j.triboint.2020.106846, Vol. 157, 2021, 106846

23. Simulated stress induced sensitization of HAZ in multipass weld of 304LN austenitic stainless steel, N. A. Barla, P. K. Ghosh, V. Kumar, N. K. Paraye, R. Anant and S. Das, Journal of Manufacturing Processes, DOI: https://doi.org/10.1016/j.jmapro.2020.12.061, Vol. 62, 2021, pp. 784-796

24. Surface modification of AISI 8620 steel by in-situ grown TiC particle using TIG arcing, N. K. Paraye, S. P. Neog, P. K. Ghosh and S. Das*, Surface and Coatings Technology, DOI: https://doi.org/10.1016/j.surfcoat.2020.126533, Vol. 405, January 2021, 126533

25. Surface modification via in situ formation of titanium carbide in ferrous matrix through TIG arcing, N. K. Paraye, P. K. Ghosh and S. Das*, Materials Letter, DOI: https://doi.org/10.1016/j.matlet.2020.128723, Vol. 283, January 2021, 128723

26. A novel approach to synthesize surface composite by in-situ grown VC reinforcement in steel matrix via TIG arcing; N. K. Paraye, P. K. Ghosh and S. Das*, Surface and Coatings Technology, DOI: https://doi.org/10.1016/j.surfcoat.2020.126129, Vol. 399, 2020, pp, 126129

27. Microstructural evolution of novel continuously cooled carbide free bainitic steel during sliding wear, S. P. Neog, S. Das Bakshi and S. Das*, Wear, DOI: https://doi.org/10.1016/j.wear.2020.203359, Vol. 456-457, 2020, pp. 203359

28. Medium carbon fully pearlitic steel: microstructures and properties after wire drawing, S. Das*, P. Bradley and A. Haldar, Materials Science and Technology, DOI: https://doi.org/10.1080/02670836.2019.1573526, Vol. 35, 2019, pp. 585-595

29. Simulated stress induced sensitization study for HAZ of 304 LN stainless steel weld using a thermo-mechanical simulator, N. A. Barla, P. K. Ghosh, S. Das and V. Kumar, Metallurgical and Materials Transactions A, DOI: https://doi.org/10.1007/s11661-018-5082-5, Vol. 50, 2019, pp. 1283-1293

30. Surface hardening by in-situ grown composite layer on Microalloyed steel employing TIG arcing process, D. Sharma. P. K. Ghosh, S. Kumar, S. Das, R. K. Anant, Surface and Coatings Technology, DOI: https://doi.org/10.1016/j.surfcoat.2018.08.009, Vol. 352, 2018, pp. 144-158

31. Ductile ultra high strength hot stamped steel obtained by Q&P treatment, M. Krugla, R. Rana and S. Das*, Materials Science and Technology, DOI: https://doi.org/10.1080/02670836.2017.1371409, Vol. 34, No. 3, 2018, pp. 268 - 281

32. Mechanical properties of bainitic steel producible by hot rolling, R. Rana, S. Chen, A. Haldar and S. Das, Archives for Metallurgy and Materials, DOI: https://doi.org/10.1515/amm-2017-0342, Vol. 62, No. 4, 2017, pp. 2331-2338

33. Hot rolled and continuously cooled bainitic steel with good strength elongation combination, S. Das*, S. Sinha, A. Lodh, A. R. Chintha, M. Krugla and A. Haldar, Materials Science and Technology, DOI: https://doi.org/10.1080/02670836.2016.1268663, Vol. 33, No 8, 2017, pp. 1026-1037

34. Modeling the hot strength behavior of steel, A. Lodh, A. Biswas and S. Das*, Ironmaking and Steelmaking, DOI: https://doi.org/10.1179/1743281214Y.0000000230, Vol. 42, No. 4, 2015, pp. 290-301

35. Formation of fully pearlitic microstructure in medium carbon steel, S. Das* and A. Haldar, Philosophical Magazine, DOI: https://doi.org/10.1080/14786435.2014.956834, Vol. 94, No. 29, 2014, pp. 3281-3294

36. A Phenomenological Model for Bake Hardening in Minimal Carbon Steels, S. Das*, O. N. Mohanty and S. B. Singh, Philosophical Magazine, DOI: https://doi.org/10.1080/14786435.2014.906754, Vol. 94, No. 18, 2014, pp. 2046-2061

37. Continuously cooled ultrafine bainitic steel with excellent strength-elongation combination, S. Das* and A. Haldar, Metallurgical and Materials Transactions A, DOI: https://doi.org/10.1007/s11661-013-2173-1, Vol. 45, Issue 4, 2014, pp. 1844-1854

38. Development of multiphase microstructure with bainite, martensite and retained austenite in a Co-containing steel through Quenching and Partitioning (Q&P) treatment, S. Samanta, S. Das, D. Chakrabarti, I. Samajdar, S.B. Singh, A. Haldar; Metallurgical and Materials Transactions A, DOI: https://doi.org/10.1007/s11661-013-1929-y, Vol. 44, Issue 13, 2013, pp. 5653-5664

39. Design and development of precipitate strengthened advanced high strength steel for automotive application, G. Jha, S. Das*, S. Sinha, A. Lodh and A. Haldar, Materials Science and Engineering A, DOI: ,https://doi.org/10.1016/j.msea.2012.10.047, Vol. 561, 2013, pp. 394 - 402

40. Development of hot rolled steel sheet with 600 MPa UTS for automotive wheel application, G. Jha, S. Das*, A. Lodh and A. Haldar; Materials Science and Engineering A, DOI: https://doi.org/10.1016/j.msea.2012.05.070, Vol. 552, 2012, pp. 457 - 463

41. Effect of bainitic transformation on bake hardening in TRIP assisted steel, S. Das*, I. Timokhina, S. B. Singh, E. Pereloma and O. N. Mohanty, Materials Science and Engineering – A, DOI: https://doi.org/10.1016/j.msea.2011.11.097, Vol. 534, 2012, pp. 485 - 494

42. Development of continuously cooled high strength bainitic steel through microstructural engineering at Tata Steel, S. Das*, S. Kundu and A. Haldar, Materials Science Forum, DOI: https://doi.org/10.4028/www.scientific.net/MSF.702-703.939 Vol. 702-703, 2012, pp. 939 – 942

43. Effect of free carbon and aging condition on bake hardening, S. Das*, S. B. Singh and O. N. Mohanty, Ironmaking and Steelmaking, DOI: https://doi.org/10.1179/030192310X12816231892503, Vol. 38, No. 2, 2011, pp. 139 – 143

44. Development and characterization of C-Mn-Al-Si-Nb TRIP aided steel; T. Bhattacharyya, S. B. Singh, S. Das, A. Haldar and D. Bhattacharya, Materials Science and Engineering A, DOI: https://doi.org/10.1016/j.msea.2010.11.054, Vol. 528, 2011, pp. 2394 - 2400

45. Understanding the complexities of bake hardening, S. Das, S. B. Singh, O. N. Mohanty and H. K. D. H. Bhadeshia; Materials Science and Technology, DOI: https://doi.org/10.1179/174367507X247511, Vol. 24, No. 1, 2008, pp. 107 – 111

D. Key note / Invited / Plenary presentations in different conferences:

1. Abrasive wear behaviour of continuously cooled carbide-free bainitic steel, A. S. Rajput and S. Das, invited presentation in 25^thWear of Materials (Conference (WOM 25), held in Sitges, Spain during 13-17^th April, 2025

2. Hydrogen embrittlement: The hidden risk in a green future, S. Shukla and S. Das, an invited presentation in Hydrogen Conclave (HYCON 25) held in Jaipur, India during 10-14^th February 2025

3. Estimating the extent of retained austenite in sub-surface region after wear, S. P. Neog and S. Das, an invited presentation in 5^th Indo-Austrian Symposium on Materials Engineering, held in IIT Kharagpur during 12-13^th December 2024

4. “Ultra high strength nano-structured continuously cooled bainitic steel: from concept to reality”, S. Das, invited lecture jointly organized by IGCAR-Kalpakkam and IIM-Kalpakkam Chapter on 8^th November 2019

5. “Development of 3^rd Generation Advanced High Strength Steels: A Tata Steel Approach”, S. Das, invited lecture jointly organized by CSIR-NML and IIM-Jamshedpur Chapter on 30^th December 2013

6. “Current status of Advanced High Strength Steel”, S. Das and A. Haldar, Key note lecture in the International Conference on Automotive Materials & Manufacturing 2010, organized by the Automotive Research Association of India, Pune, 6 -8 October 2010

7. “Bake hardening: An overview”, S. Das, S. B. Singh and O. N. Mohanty, Invited paper in International Conference on Interstitial Free Steel 2010, organized by Tata Steel Limited, Jamshedpur,2010

8. “New Generation Automotive Steels”, S. Das and A. Haldar, in A. K. Seal Memorial Lecture, Organised by Bengal Engineering and Science University, Howrah, 1^st September 2009

E. Contributory papers in different Conferences:

1. “Effect of varying speed on the mechanical behaviour of the modified surface of low carbon steel” S. Balbande and S. Das, 25th International Conference on Wear of Materials, Sitges, Spain, 13 – 17 April 2025

2. “In-situ high temperature dry sliding wear behaviour of continuously cooled carbide-free bainitic steel”, A. S. Rajput and S. Das, 25th International Conference on Wear of Materials, Sitges, Spain, 13 – 17 April 2025,

3. Mechanical behaviour of AISI 8620 steel modified using in-situ grown carbide through with tungsten inert gas arcing”, S. Balbande and S. Das, 153rd Annual Meeting & Exhibition, TMS 2024 “The Minerals, Metals & Materials Society”, Orlando, USA, 03 - 07 March 2024.

4. “Some observations on dry sliding wear behaviour of carbide-free bainitic steel”, S. Das, in International Materials Application and Technologies (IMAT 2023) held in Detroit, Michigan USA on 16-19^th October 2023

5. “Abrasive wear behaviour of carbide free bainitic steel”, A. S. Rajput and S. Das, Technical Meeting & Exhibition, MS&T 2023, “Materials Science & Technology”, Ohio, USA, 01 – 04 October 2023

6. “Mechanical Behaviour of AISI 8620 Steel`s Surface Modified Through TIG Arcing”, S. Balbande and S. Das, 11th International Conference on Industrial Tribology (ICIT): “Tribology for Energy, Environment and Society”, New Delhi, India, 12 -14 December 2022.

7. “Wear behaviour of surface modified carbide free bainitic steel”, A. S. Rajput and S. Das, 11th International Conference on Industrial Tribology (ICIT): “Tribology for Energy, Environment and Society”, New Delhi, India, 12 -14 December 2022,

8. “Mechanical behaviour of AISI 8620 steel modified using in-situ grown carbide through with tungsten inert gas arcing”, S. Balbande and S. Das, 76th Annual Technical Meeting by Indian Institute of Metals IIM –ATM: “Accelerated Materials Development and Additive Manufacturing: Scientific and Technological Perspectives (AMDAM)”, Hyderabad, India, 13 – 16 November 2022

9. “Improvement in surface properties of AISI 8620 steel through tungsten inert gas arcing process”, S. Balbande and S. Das, 3rd International Conference on Advances in Materials and Processing: Challenges and Opportunities (AMPCO), Roorkee, India, 17 – 19 October 2022

10. Thermodynamics of formation and microstructural characterization of continuously cooled low carbon fully pearlitic steel, S. Das and A. Haldar, in Modern Steel and Its Alloys (MS&IA 18), Warsaw University, 26-29^th June 2018

11. Electrochemical test to study the corrosion behavior of surface modified 8620 steel, N. A. Barla, N. Kumar, P.K Ghosh and S. Das, in Advances in Materials Processing: Challenges and Opportunities (AMPCO 2017), organized by IIT Roorkee, 30^th Nov – 02^nd December 2017

12. Development of continuously cooled high strength bainitic steel through microstructural engineering at Tata Steel, S. Das, S. Kundu and A. Haldar, in the proceedings of 16^th International Conference on Texture of Materials (ICOTOM), December 2011, IIT-Bombay, Mumbai, India, eds: A. Tewari, S. Suwas, D. Srivastava, I. Samajdar and A. Haldar (ISSN: 0255-5476)

13. Thermoelectric power measurements in an ultra low carbon, bake hardenable steel, S. Das, S. B. Singh and O. N. Mohanty, in International Conference on Advances in Materials and Materials Processing (ICAMMP) 2011, organized by IIT-Kharagpur, 8-10^th November, 2011

14. Evolution of microstructures and properties in a high Mn bainitic steel, N. Bhowmik, S. Das, S. K. Ghosh, P. P. Chattopadhyay and A. Haldar, in International Conference on High Mn Steels 2011, May 15-18, Seoul, Korea, 2011

15. Very low carbon pearlite, S. Das, S. Kundu and A. Haldar, Symposium on Wire-Tech 2010, held at Radison Ffort, Raichak, Kolkata, 18-20^th November 2010

Ultra high strength wire and wire rods, S. Das, L. Deng, P. Morris and A. Haldar, Symposium on Wire-Tech 2010, held at Radison Ffort, Raichak, Kolkata, 18-20^th November 2010

16. Kinetics of bake hardening in delta trip steel, S. Das, I. Timokhina, S. B. Sing, E. Pereloma and O. N. Mohanty, in RS Day 2009, organized by Indian Institute of Technology Kharagpur in 2009

17. Thermoelectric power study of strain aging, S. Das, S. B. Sing and O. N. Mohanty, in COMPOSIT 2006 organised by Indian Institute of Technology in 2006)

18. Thermodynamics of the system Ti-Mg-O and some investigation on the reduction of TiO₂ by Mg, S. Das and D. Ghosh, in Emerging Trends in Mineral Processing and Extractive Metallurgy (ICME 2005), organized by Regional Research Laboratory, Bhubaneswar, June 2005

TOPIC	START DATE	FIELD	DESCRIPTION	FINANCIAL OUTLAY	FUNDING AGENCY	OTHER OFFICERS
Stability of retained austenite	01 Jan 2018	Stability of retained austenite		~ Rs. 50.0 lac	DST-SERB
Development of nano-structured ultra high strength steel with good ductility	02 Jan 2019	Steel development		Rs. 48.64 lac	IMPRINT-MHRD	1. Prof. S. B. Singh (IIT Kharagpur) and 2. Prof. P. C. Chakraborti (Jadavpur University);
Wear behaviour of carbide free bainitic steel	01 Apr 2024	Steel, wear, phase transformation		Rs. 65.0 lakh	SERB
H2 transportation through existing natural gas pipeline	02 Nov 2026	Hydrogen, steel, mechanical properties		Rs. 17.29 cr	GAIL and MNRE, Gas Authority of India Limited (GAIL) and Ministry of New and Renewable Energy (MNRE), India