MICROSTRUCTURE AND MECHANICAL PROPERTIES OF Fe_3Al BASED ALLOYS

作     者：D.G. MORRIS(Institute of Structural Metallurgy, Avenue de Bellevaux 51, University of Neuchatel, 2000 NEUCHATEL, SWITZERLAND) 

作者机构：Univ of Neuchatel Switzerland 

出 版 物：《Acta Metallurgica Sinica(English Letters)》 (金属学报（英文版）)

年 卷 期：1995年第8卷第Z1期

页      面：393-404页

核心收录：

学科分类：0810[工学-信息与通信工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

主　　题：Intermetallics Aluminides Order Anti-phase boundaries Dislocation structures,Anomalous strengthening Solute hardening. 

摘      要：The promise for industrial applications offered by iron aluminides is today restricted by insufficient ductility at room temperature and mediocre strength and creep resistance at high temperatures. The tendency to embrittlement in the presence of hydrogen or water vapour limits the ductility even more. The atomic arrangements in binary and alloyed variants are examined here and related to the difficulties of dislocation propagation at room and at high temperatures. In this way the influence of intrinsic structure and alloying modifications on mechanical behaviour can be understood. Possibilities for further improving properties through structure control are considered.