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Thermal and athermal contributions to the flow stress of martensite

Abstract:

Recent theories consider as-quenched martensite as a composite which strain hardens by the gradual yielding of constituents. An underlying hypothesis is that hardening comes primarily from athermal hardening contributions. In this contribution, we conducted strain-rate jump and tension-compression tests to quantify the athermal and kinematic hardening contributions in martensite. It is shown that athermal hardening accounts for ~75% of the total strength of as-quenched martensite. The magnitu...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1016/j.mtla.2020.100719

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Institution:
University of Oxford
Division:
MPLS
Department:
Engineering Science
Oxford college:
Christ Church
Role:
Author
ORCID:
0000-0001-7966-750X
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Publisher:
Elsevier Publisher's website
Journal:
Materialia Journal website
Volume:
11
Issue:
June 2020
Article number:
100719
Publication date:
2020-05-16
Acceptance date:
2020-05-03
DOI:
ISSN:
2589-1529
Language:
English
Keywords:
Pubs id:
1109642
Local pid:
pubs:1109642
Deposit date:
2020-07-13

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