On the Eutectoid Reaction in a Quaternary Fe-C-Mn-Al Alloy: Austenite → Ferrite plus Kappa-Carbide+M23C6 Carbide

被引：47

作者：

Cheng, Wei-Chun ^{[1
]}

Song, Yuan-Sheng ^{[1
]}

Lin, Yu-Shan ^{[1
]}

Chen, Kuan-Fu ^{[1
]}

Pistorius, Petrus C. ^{[2
]}

机构：

[1] Natl Taiwan Univ Sci & Technol, Dept Mech Engn, Taipei 106, Taiwan

[2] Carnegie Mellon Univ, Dept Mat Sci & Engn, Pittsburgh, PA 15213 USA

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2014年 / 45A卷 / 03期

关键词：

MECHANICAL-PROPERTIES; SPINODAL DECOMPOSITION; MODULATED STRUCTURE; PARTITIONED PEARLITE; PHASE-TRANSFORMATION; BAINITE; MICROSTRUCTURES; GROWTH; CARBON; STEELS;

D O I：

10.1007/s11661-013-2083-2

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Lamellae of ferrite, kappa-carbide, and M23C6 carbide are involved in a eutectoid reaction of an Fe-C-Mn-Al alloy after isothermal holding at temperatures below 923 K (650 A degrees C). These lamellar phases are product phases from the decomposition of austenite during the eutectoid reaction of the quaternary alloy, i.e., austenite -> ferrite + kappa-carbide + M23C6 carbide. Since the Al concentration in the steel is higher than that of the eutectoid composition, proeutectoid ferrite and kappa-carbide appear in the austenite prior to the eutectoid reaction to reduce the Al content of the retained austenite. The retained austenite decomposes into ferrite, kappa-carbide, and M23C6 carbide during the eutectoid reaction.

引用

页码：1199 / 1216

页数：18

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