A micro-mechanism to explain the post-DRX grain growth at temperatures > 0.8Tm

被引：15

作者：

Aashranth, B. ^{[1
]}

Samantaray, Dipti ^{[1
]}

Davinci, M. Arvinth ^{[1
]}

Murugesan, S. ^{[1
]}

Borah, Utpal ^{[1
]}

Albert, Shaju K. ^{[1
]}

Bhaduri, A. K. ^{[1
]}

机构：

[1] Indira Gandhi Ctr Atom Res, Kalpakkam 603102, Tamil Nadu, India

来源：

MATERIALS CHARACTERIZATION | 2018年 / 136卷

关键词：

AUSTENITIC STAINLESS-STEEL; DYNAMIC RECRYSTALLIZATION; METADYNAMIC RECRYSTALLIZATION; HOT; STRAIN; DEFORMATION; COLD; SLIP; REFINEMENT; MARTENSITE;

D O I：

10.1016/j.matchar.2017.12.010

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A micro-mechanism responsible for the occurrence of post-dynamic recrystallization (DRX) grain growth during deformation at T > 0.8T(m) is described. Thermo-mechanical testing, microstructural characterization and diffraction studies reveal the link between slip and grain growth. If deformation is imparted in a single stage, grains grow by a cooperative growth process involving grain rotation and alignment of slip planes. This mechanism changes when deformation is interrupted and controlled intermediate soaking is performed before re-loading. A premeditated control of mechanism is shown to yield favourable microstructural and mechanical properties. A strategy to apply this control to industrial hot deformation is outlined.

引用

页码：100 / 110

页数：11

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A micro-mechanism to explain the post-DRX grain growth at temperatures &gt; 0.8Tm

A micro-mechanism to explain the post-DRX grain growth at temperatures > 0.8Tm