Martensitic phase transformation and pop-in in compression of austenitic steel nanoplates observed in situ by transmission electron microscopy

被引：4

作者：

Kim, Yong-Jae ^{[1
]}

Yoo, Byung-Gil ^{[1
]}

Choi, In-Chul ^{[1
]}

Seok, Moo-Young ^{[1
]}

Kim, Ju-Young ^{[2
]}

Ohmura, Takahito ^{[3
]}

Jang, Jae-il ^{[1
]}

机构：

[1] Hanyang Univ, Div Mat Sci & Engn, Seoul 133791, South Korea

[2] Ulsan Natl Inst Sci & Technol, Sch Mech & Adv Mat Engn, Ulsan 689805, South Korea

[3] Natl Inst Mat Sci, Res Ctr Strateg Mat, Tsukuba, Ibaraki 3050047, Japan

来源：

MATERIALS LETTERS | 2012年 / 75卷

基金：

新加坡国家研究基金会;

关键词：

Martensitic transformation; Steel; In situ TEM; Pop-in; STAINLESS-STEELS; NANOINDENTATION; DEFORMATION; BEHAVIOR; TEMPERATURE;

D O I：

10.1016/j.matlet.2012.02.014

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

To explore small-scale martensitic phase transformation and its relation to pop-ins observed in stress-strain curve, in situ compression experiments in transmission electron microscope were performed on austenitic steel nanoplates. Diffraction mode test revealed that the transformation indeed occurs at the nanoscale, but the pop-in seems not related with sudden microstructural change. Additional imaging mode test suggests that pop-ins may be caused by rapid formation of slip band and/or shearing-off of the nanoplate. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：107 / 110

页数：4

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