Synthesis and stability of the austenite phase in mechanically alloyed Fe-Cr-Ni alloys

被引：15

作者：

Al-Joubori, Ahmed A. ^{[1
]}

Suryanarayana, C. ^{[1
,2
]}

机构：

[1] Univ Cent Florida, Dept Mat Sci & Engn, Orlando, FL 32816 USA

[2] Univ Cent Florida, Dept Mech & Aerosp Engn, Orlando, FL 32816 USA

来源：

MATERIALS LETTERS | 2017年 / 187卷

关键词：

Nanocrystalline materials; Mechanical alloying; Microstructure; Electron microscopy; X-ray techniques; STAINLESS-STEEL; EVOLUTION; MICROSTRUCTURE; TRANSFORMATION; POWDERS;

D O I：

10.1016/j.matlet.2016.10.084

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Fe-18Cr-xNi (x=8, 12, and 20) elemental powder blends were mechanically alloyed to synthesize and establish the stability of the austenite phase in Fe-Cr-Ni alloys. For the powders with 8 and 12Ni, the resulting structure after milling was austenite which had eventually transformed to martensite. But, for the powder with 20Ni, the powder was fully austenitic. The time to start for the formation of the austenite phase decreased with an increase in the Ni content. The phase formation was confirmed by XRD and high-resolution microscopy techniques and a new phase diagram was proposed outlining the stability region of the austenite phase in the ternary Fe-Cr-Ni alloys.

引用

页码：140 / 143

页数：4

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