摘要
利用高分辨电子显微镜和分析电子显微镜研究了γ／γ＇－α定向共晶合金高温时效组织，发现经过８５０和６５０℃的时效后，γ相的相变产物不同．α纤维则析出棒状的四方相Ｎｉ３Ｍｏ，还发现γ＇－Ｎｉ３Ａｌ片层状孪晶与Ｎｉ３Ｍｏ共生在一起ＥＤＡＸ分析表明，α纤维中固溶着Ｎｉ，Ａｌ和少累的Ｖ．
The texture of γ/γ'-αDS eutectic alloy during aging has been investigated by means of high resolution electron microscopy(HREM) and analytical transmission electron microscopy.It has been found that the products of phase transformation in γphase are different during aging at temperatures of 850 and 650℃.Stick-like orthorhombic Ni3Mo was precipitated inα fibers,the γ-N i3Al with lamella twin structure can also be found to coexist with Ni3Mo.EDAX analysis shows the solid solution of Ni,Al and small amount of V inαfibers.
出处
《金属学报》
SCIE
EI
CAS
CSCD
北大核心
1994年第1期A001-A006,共6页
Acta Metallurgica Sinica
基金
国家自然科学基金资助项目
关键词
γ/γ'-α定向共晶合金
时效
相变
析出
γ/γ'-αDS eutectic alloy,aging,phase transformation,precipitation
