-
- Home
- Journals
- Bulletin of Materials Science
- Volume 17
- Issue 1
-
Development of an ultra-high-strength low-alloy NiSiCrCoMo steel
G Malakondaiah M Srinivas J Marthanda Murthy Rama Rao P
Volume 17 Issue 1 February 1994 pp 73-86
-
-
Fulltext
Click here to view fulltext PDF
Permanent link:
https://www.ias.ac.in/article/fulltext/boms/017/01/0073-0086 -
Keywords
Ultra-high-strength steels ;fracture toughness ;maraging steel ;tempered martensite embrittlement ;segregation -
Abstract
An ultra-high-strength low-alloy NiSiCrCoMo steel has been developed. The development work is part of a major programme at the Defence Metallurgical Research Laboratory in the field of ultra-high-strength, high-fracture-toughness steels. In this context we undertook investigations to understand the effect of solute additions on the fracture behaviour of Armco iron and Fe-C alloys. We investigated Fe-Ni, Fe-Co, Fe-Si, Fe-Mo, Fe-C-Ni and Fe-C-Co alloys for mechanical behaviour. The report by Garrison (1986) on a Fe-C-Ni-Si-Cr alloy was an important pointer to a low-alloy, ultra-high-strength steel with high fracture toughness. The material we have now arrived at is a Fe-C-Ni-Si-Cr-Co-Mo steel with tensile, impact and fracture toughness properties matching those of maraging steel 250 grade in tonnage scale melts.
-
Author Affiliations
G Malakondaiah1 M Srinivas1 J Marthanda Murthy1 Rama Rao P1 2
- Defence Metallurgical Research Laboratory, Kanchanbagh, Hyderabad - 500 258, India
- Jawaharlal Nehru Centre for Advanced Scientific Research, IISc Campus, Bangalore - 560 012, India
-
Dates
- Published
- February 1994
- Manuscript received
- 13 December 1993
-
-
Bulletin of Materials Science
Volume 46, 2023
All articles
Continuous Article Publishing mode
-
Bulletin of Materials Science | News
-
Dr Shanti Swarup Bhatnagar for Science and Technology
Posted on October 12, 2020Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
Chemical Sciences 2020Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
Physical Sciences 2020 -
Editorial Note on Continuous Article Publication
Posted on July 25, 2019Click here for Editorial Note on CAP Mode
-