双温热处理TiAl基合金显微组织和相结构分析  

Investigation on The Microstructures and Phases of TiAl based Alloy Sample Heat treated at Double Temperatures

作　　者：贺跃辉[1,2] 黄伯云[1,2] 陈小群 刘业翔[1,2] 徐强 

机构地区：[1]中南工业大学粉冶所 [2]中科院北京电镜实验室

出　　处：《电子显微学报》1997年第1期31-38,共8页Journal of Chinese Electron Microscopy Society

基　　金：国家"863"高技术计划基金;国家自然科学基金

摘　　要：采用透射电子显微镜较详细地研究了双温热处理试样的显微组织结构特征。试验发现，由于多相ＴｉＡｌ基合金相界面间存在一定的位向关系，以及相析出和相转变在一定的惯习面和方向上发生，导致了相变特征呈现多样性。The microstructure and phase of TiAl based alloy sample heat treated at double temperatures were studied using TEM in details.It has been found that very complex microstructure,which differed from the prior studies results,can be gained in this sample.The test results exhibited that this was due to the special phase boundary relation of this kind of alloy which effected on the phase and microstructure transition of TiAl based alloy sample at the heat treatment processing.

关 键 词：热处理 显微组织 相结构 铝化钛基合金 

分 类 号：TG115.213[金属学及工艺—物理冶金] TG166[金属学及工艺—金属学]