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The respective strain hardening of constituting phases during Lüders deformation of a medium-Mn steel
Philosophical Magazine Letters ( IF 1.2 ) Pub Date : 2021-03-29 , DOI: 10.1080/09500839.2021.1904300 S. Pan 1 , B.B. He 1
中文翻译:
中锰钢的吕德斯变形过程中各相的应变硬化
更新日期:2021-05-11
Philosophical Magazine Letters ( IF 1.2 ) Pub Date : 2021-03-29 , DOI: 10.1080/09500839.2021.1904300 S. Pan 1 , B.B. He 1
Affiliation
ABSTRACT
The present work quantifies the contribution of constituting phases to the strain hardening in a medium-Mn steel during Lüders deformation. The strain hardening of the ferrite matrix (∼ 46.1 MPa) is much lower than that of the austenite phase (∼ 116 MPa). The large difference of strain hardening behaviour between ferrite and austenite phases is ascribed to a martensitic transformation. Thus, the transformation-induced plasticity effect in retained austenite is the main contributor to the strain hardening during Lüders deformation of the present medium-Mn steel.
中文翻译:
中锰钢的吕德斯变形过程中各相的应变硬化
摘要
本工作量化了Lüders变形过程中组成相对中锰钢应变硬化的贡献。铁素体基体的应变硬化(约46.1 MPa)远低于奥氏体相的应变硬化(约116 MPa)。铁素体相和奥氏体相之间的应变硬化行为差异很大,这归因于马氏体相变。因此,在残余奥氏体中由相变引起的可塑性效应是导致本发明中Mn钢的Lüders变形过程中应变硬化的主要因素。