A REVIEW OF RECENT DEVELOPMENTS IN FE3AL-BASED ALLOYS

被引:698
作者
MCKAMEY, CG
DEVAN, JH
TORTORELLI, PF
SIKKA, VK
机构
[1] Metals and Ceramics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee
基金
美国能源部;
关键词
D O I
10.1557/JMR.1991.1779
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Fe3Al-based iron aluminides have been of interest for many years because of their excellent oxidation and sulfidation resistance. However, limited room temperature ductility (< 5%) and a sharp drop in strength above 600-degrees-C have limited their consideration for use as structural materials. Recent improvements in tensile properties, especially improvements in ductility produced through control of composition and microstructure, and advances in the understanding of environmental embrittlement in intermetallics, including iron aluminides, have resulted in renewed interest in this system for structural applications. The purpose of this paper is to summarize recent developments concerning Fe3Al-based aluminides, including alloy development efforts and environmental embrittlement studies. This report will concentrate on literature published since about 1980, and will review studies of fabrication, mechanical properties, and corrosion resistance that have been conducted since that time.
引用
收藏
页码:1779 / 1805
页数:27
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