Formation of twinned L1(2) type gamma' in alloys derived from the B2 beta-NiAl structure

被引:7
作者
Gale, WF
机构
关键词
nickel aluminides; based on NiAl and Ni3Al; precipitates; twinning; microstructure;
D O I
10.1016/0966-9795(96)00048-9
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
This paper discusses the precipitation of elongated, internally micro-twinned Lit type gamma' in B2 beta-NiAl. Evidence is presented indicating that the formation of elongated, internally micro-twinned gamma' occurs independently of both Ni5Al3 and Ll(0) martensite, contrary to a previous investigation. Copyright (C) 1996.
引用
收藏
页码:585 / 587
页数:3
相关论文
共 7 条
[1]  
GALE WF, 1993, MATER SCI TECH SER, V9, P793
[2]   DECOMPOSITION OF THE B2-TYPE MATRIX OF ALUMINIDE DIFFUSION COATINGS ON SINGLE-CRYSTAL NICKEL-BASE SUPERALLOY SUBSTRATES [J].
GALE, WF ;
KING, JE .
METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1992, 23 (09) :2657-2665
[3]   The influence of ageing on the stability of beta-gamma/gamma' derived microstructures in Ni-Al-Cr-(Co) alloys [J].
Gale, WF ;
Nemani, RV ;
Horton, JA .
JOURNAL OF MATERIALS SCIENCE, 1996, 31 (07) :1681-1688
[4]   FORMATION AND MICROSTRUCTURAL STABILITY OF MULTIPHASE INTERMETALLICS BASED ON NIAL [J].
GALE, WF ;
NEMANI, RV .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1995, 192 :868-872
[5]  
GALE WF, UNPUB METALL MAT T A
[6]   Microstructural evolution in ductile beta(B2)+gamma'(L1(2)) Ni-Al-Fe alloys [J].
Kainuma, R ;
Imano, S ;
Ohtani, H ;
Ishida, K .
INTERMETALLICS, 1996, 4 (01) :37-45
[7]   A MICROSTRUCTURAL STUDY OF A NI2ALTI-NI(AL,TI)-NI3(AL,TI) 3-PHASE ALLOY [J].
YANG, R ;
LEAKE, JA ;
CAHN, RW .
JOURNAL OF MATERIALS RESEARCH, 1991, 6 (02) :343-354