Effect of plastic deformation on the formation of acicular ferrite

被引：114

作者：

Lee, CH

Bhadeshia, HKDH

Lee, HC ^{[1
]}

机构：

[1] Seoul Natl Univ, Sch Mat Sci & Engn, Seoul 151742, South Korea

[2] Univ Cambridge, Dept Mat Sci & Met, Cambridge CB2 3QZ, England

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2003年 / 360卷 / 1-2期

关键词：

plastic deformation; acicular ferrite; mechanical stabilisation; allotriomorphic ferrite; oxides; steels;

D O I：

10.1016/S0921-5093(03)00477-5

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The effect of plastic deformation on the transformation of austenite to acicular ferrite in a Fe-Mn-Si-C alloy steel containing non-metallic inclusions was investigated. The transformation to acicular ferrite is retarded and the final fraction of acicular ferrite is reduced in plastically deformed austenite, which is a characteristic of a displacive transformation mechanism. The increase in the chemical driving force for transformation due to large undercooling below the B-s temperature overcomes the efficacy of dislocations in preventing the growth of acicular ferrite. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：249 / 257

页数：9

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