A repetitive thermomechanical process to produce nano-crystalline in a metastable austenitic steel

被引：148

作者：

Ma, YQ ^{[1
]}

Jin, JE ^{[1
]}

Lee, YK ^{[1
]}

机构：

[1] Yonsei Univ, Dept Engn Met, Seoul 120749, South Korea

来源：

SCRIPTA MATERIALIA | 2005年 / 52卷 / 12期

关键词：

nano-crystalline; reverse transformation; metastable austenite; grain refinement;

D O I：

10.1016/j.scriptamat.2005.02.018

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Nano-crystalline grains of about 100 nm were obtained in a metastable austenitic steel by a repetitive thermomechanical process consisting of conventional cold rolling and annealing. The nano-grained austenite was transformed on annealing from the strain-induced martensite, which had formed during cold rolling. The nano-structured austenitic steel exhibits not only high strength (above 1 GPa) but also good elongation (above 30%). (c) 2005 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

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收藏

页码：1311 / 1315

页数：5

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