Growth Behavior of a Phase in Ti-5.6Al-4.8Sn-2.0Zr-1.OMo-0.35Si-0.7Nd Titanium Alloy

被引：0
|
作者：
Shangzhou ZHANG
机构：
来源：
Journal of Materials Science & Technology | 2006年 / 04期
关键词：
Near-αtitanium alloy; Microstructure; Coarsening; Aging;
D O I：
暂无
中图分类号：
TG111 [金属物理学];
学科分类号：
0702 ; 070205 ;
摘要：
The thermal stability of the microstructure of a near-αtitanium alloy after aging at 750℃was investigated using optical microscope and transmission electron microscope as well as composition analysis. Aging treatment brings about significant coarsening of grain boundaryαandαplatelets within the colonies for martensitic microstructure. The observed changes are related to the growth steps or ledges of the interface and lamellar termination presented in the microstructure. The composition analysis of the coarsenedαplate is consistent with the growth kinetics. TheαWidmanstatten plates were coarsened due to the movement ofα/βinterface for Widmansta’tten microstructure, and the phase boundaries of primaryα(αp) phase directly moved into the transformedβfor bimodal microstructure.
引用
收藏
页码：459 / 464
页数：6
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