A Comparative Analysis of Austenite-to-Martensite and Austenite-to-Bainite Phase Transformation Kinetics in Steels

被引：10

作者：

Holzweissig, M. J. ^{[1
]}

Uslu, M. C. ^{[2
]}

Lambers, H. -G. ^{[3
]}

Canadinc, D. ^{[2
]}

Maier, H. J. ^{[1
]}

机构：

[1] Univ Paderborn, Lehrstuhl Werkstoffkunde Mat Sci, D-33095 Paderborn, Germany

[2] Koc Univ, Dept Mech Engn, AMG, TR-34450 Istanbul, Turkey

[3] Benteler Automot, Res & Dev, D-33102 Paderborn, Germany

来源：

MATERIALS RESEARCH LETTERS | 2013年 / 1卷 / 03期

关键词：

Austenite; Bainite; Martensite; Phase transformation; Anisotropic strain;

D O I：

10.1080/21663831.2013.798748

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper presents a comparison of the macroscopic transformation strain evolution as a function of the bainite and martensite phase fractions in steels. Specifically, the evolution of anisotropic strain with phase fraction follows a linear trend for the martensitic transformation due to continuous stress-induced variant selection. In the case of bainitic transformation, the anisotropic strain evolves non-linearly owing to diffusion, minimizing the distortion around the bainitic sheaves and further promoting stress-induced variant selection at the early stages of the bainitic phase transformation. However, this effectiveness is reduced when the bainitic sheaves start constricting the growth of each other.

引用

页码：141 / 147

页数：7

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