STRUCTURE AND PROPERTIES OF ORDERED INTERMETALLICS BASED ON THE FE-AL SYSTEM

被引：71

作者：

PRAKASH, U

BUCKLEY, RA

JONES, H

SELLARS, CM

机构：

[1] School of Materials, University of Sheffield, Sheffield, S1 3JD, Mappin Street

来源：

ISIJ INTERNATIONAL | 1991年 / 31卷 / 10期

关键词：

IRON ALUMINIDES; PHYSICAL METALLURGY; PROCESSING AND COMPOSITION CONTROL; MULTIPHASE ALLOYS; STRUCTURE; MECHANICAL PROPERTIES;

D O I：

10.2355/isijinternational.31.1113

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Recent work on the ordered Fe-Al based intermetallics (B2-FeAl and D0(3)-Fe3Al) for potential high temperature applications is reviewed with emphasis on improvements in mechanical properties achievable by processing and compositional control. Constitution and microstructure as well as the role of crystalline defects, including vacancies, dislocations, tubes, antiphase boundaries and grain boundaries are discussed. The influence and behaviour of these defects with respect to strength, work hardening, ductility and fracture are analysed. Proposed mechanisms for deformation and recent investigations on creep and fatigue of these materials are also reviewed. Current literature on ternary additions, multi-phase alloys and non-equilibrium processing is discussed.

引用

页码：1113 / 1126

页数：14

共 119 条

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