Structure and Properties of Ordered Intermetallics Based on the Fe-Al System
Structure and Properties of Ordered Intermetallics Based on the Fe-Al System
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DOI：
10.2355/isijinternational.31.1113
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发表时间：
1991-10
影响因子：
1.8
通讯作者：
U. Prakash;R. Buckley;H. Jones;C. M. Sellars
中科院分区：
文献类型：
--
作者：
U. Prakash;R. Buckley;H. Jones;C. M. Sellars
综述了近年来在高温应用领域中对有序Fe-Al基金属间化合物（B2-FeAl和D 03-Fe 3Al）的研究进展，重点介绍了通过工艺和成分控制来改善其力学性能的方法。讨论了晶体缺陷（空位、位错、管道、反相界和晶界）的组成和微观结构以及它们的作用。分析了这些缺陷对强度、加工硬化、塑性和断裂的影响和行为。提出的变形机制和最近的研究这些材料的蠕变和疲劳也进行了审查。讨论了目前有关三元添加剂、多相合金和非平衡加工的文献。
Recent work on the ordered Fe-Al based intermetallics (B2-FeAl and D03-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.