Journal
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
Volume 564, Issue -, Pages 485-492Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2012.12.016
Keywords
Retained austenite; Laves phase; Maraging steel
Categories
Funding
- EPSRC
- Rolls-Royce plc
- Engineering and Physical Sciences Research Council [EP/H500375/1] Funding Source: researchfish
- EPSRC [EP/H500375/1] Funding Source: UKRI
Ask authors/readers for more resources
Maraging steels including the experimental alloy studied here show atypical stress-strain behaviour during tensile testing. In particular, there is a gradual decrease in the ability of the sample to support a stress following a small fraction of the total plastic strain to failure. It is demonstrated here that this phenomenon is not associated with the early onset of a necking instability, and that a large amount of the plastic strain beyond the peak stress is uniform. Investigations of microstructure and retained austenite content reveal that the intrinsic microstructure of maraging steels has a poor ability to work harden. The work hardening capacity can, as expected, be improved by introducing retained austenite, but there is an associated reduction in strength. Experiments have been designed to control the retained austenite content in such a way that clear comparisons can be made and conclusions reached on both the role of the austenite and of Laves phase generated at different temperatures. (c) 2012 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available