Effect of aging on the microstructure and deformation behavior of austenite base lightweight Fe-28Mn-9Al-0.8C steel

被引：238

作者：

Choi, Kayoung ^{[1
,2
]}

See, Chang-Hyo ^{[1
,2
]}

Lee, Hakcheol ^{[3
]}

Kim, S. K. ^{[4
]}

Kwak, Jai Hyun ^{[4
]}

Chin, Kwang Geun ^{[4
]}

Parkd, Kyung-Tae ^{[5
]}

Kim, Nack J. ^{[1
,2
]}

机构：

[1] POSTECH, Grad Inst Ferrous Technol, Pohang 790784, South Korea

[2] POSTECH, CAAM, Pohang 790784, South Korea

[3] POSCO, Plate Res Grp, Tech Res Labs, Pohang 790785, South Korea

[4] POSCO, Automot Steels Res Grp, Tech Res Labs, Gwangyang 545711, South Korea

[5] Hanbat Univ, Div Adv Mat Sci & Engn, Taejon 305719, South Korea

来源：

SCRIPTA MATERIALIA | 2010年 / 63卷 / 10期

关键词：

Aging; Austenitic steels; Ordering; kappa-carbide; MECHANICAL-PROPERTIES; TRIP/TWIP STEELS; ROOM-TEMPERATURE; AL ALLOYS; STRENGTH; TRANSITIONS; DUCTILITY; SLIP;

D O I：

10.1016/j.scriptamat.2010.07.036

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The effect of aging on the deformation behavior of austenitic Fe-28Mn-9Al-0.8C steel has been investigated. Various aging conditions were used to alter the size and volume fraction of kappa-carbide precipitates. It is shown that the presence of nanosized kappa-carbide precipitates, even in as-solutionized specimen, results in the formation of planar slip bands as a major deformation mode. The change in work-hardening rate with aging time is explained by the change in the activity of slip band formation with aging time. (C) 2010 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：1028 / 1031

页数：4

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