Effects of transformation-induced plasticity on the small-scale deformation behavior of single crystalline complex concentrated alloys

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We study the effects of transformation-induced plasticity (TRIP) on the micrometer-scale deformation of single crystalline pillars. Plastic deformation mechanisms (i) mediated by pure dislocation glide and (ii) strain-induced epsilon-martensite transformation are separated using compositionally complex model alloys. The results show that transformation-induced plasticity does not strengthen the single crystalline material at the micron-scale when loaded in uniaxial compression as compared to pure dislocation-mediated plasticity. The dynamically introduced phase boundaries effectively hinder the activation and propagation of secondary slip systems, resulting in no increase in local stress due to unobstructed slip on the primary slip system parallel to the phase boundary.
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Issue Date
2020-02
Language
English
Article Type
Article
Citation

SCRIPTA MATERIALIA, v.176, pp.122 - 125

ISSN
1359-6462
DOI
10.1016/j.scriptamat.2019.09.015
URI
http://hdl.handle.net/10203/268748
Appears in Collection
MS-Journal Papers(저널논문)
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