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检索条件:关键词=α_2 precipitation  

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Ti-Al-La三元系中α_2相析出相界

杨锐 , 李东 , 万晓景

金属学报

用透射电镜相分析方法测定了Ti-Al-La三元系在600℃等温截面上α_2相析出相界.结果表明,相界曲线上存在一个Al含量的极大点.根据α_2相形成的电子浓度规律和La的内氧化反应过程,定性地解释了实测相界的走向和Al含量极大点的出现.

关键词: Ti-Al-La三元系 , phase boundary , α_2 precipitation , internal oxidation , electron concentration

PHASE BOUNDARY OF α_2 PRECIPITATION IN Ti-Al-La TERNARY SYSTEM

YA NG Rui LI Dong WAN Xiaojing Institute of Metal Research , Academia Sinica , Shenyang , China

金属学报(英文版)

The phase boundary,of α_2 precipitation at 600℃ in Ti-AI-La ternary system has been de- termined by TEM examination,which shows three kinds of phase regions,namely the single α phase region,the transitional phase region where there is superlattice reflection but no α_2 precipitation,and the α+α_2 re...

关键词: ternary system Ti-Al-La , null , null , null , null