Reversible Characteristics and Cycling Effects of the ε ⇆ γ Martensitic Transformations in Fe-Mn-Cr Twip/Trip Steels

被引：8

作者：

Mertinger, V. ^{[1
]}

Benke, M. ^{[2
]}

Nagy, E. ^{[2
]}

Pataki, T. ^{[3
]}

机构：

[1] Univ Miskolc, Inst Phys Met Metalforming & Nanotechnol, Miskolc, Hungary

[2] MTA ME Mat Sci Res Grp, Miskolc, Hungary

[3] Univ Miskolc, Inst Met & Foundry Engn, Miskolc, Hungary

来源：

JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE | 2014年 / 23卷 / 07期

关键词：

advanced characterization; cast iron; steel; CO ALLOYS; TEMPERATURES; MICROSCOPY;

D O I：

10.1007/s11665-014-1025-5

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The variation of thermal characteristics of the epsilon <-> gamma transformation during thermal cycling and the effect of Cr content was studied in two Fe-Mn-Cr steels through cyclic DSC examinations. It was found that the martensite start temperature decreased and the austenite start temperature increased in the first cycles, then both stabilized after several cycles. The latent heat of the transformations increased first and then also stabilized. The Cr content pushed the epsilon <-> gamma transformations to lower temperatures, decreased the thermal hysteresis and the latent heat. It is experimentally shown that 6.53 m/m% Cr content increases the stacking fault energy in this alloy.

引用

页码：2347 / 2350

页数：4

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