Nb-Ni-Ti系L(βTi,Nb)+TiNi共晶相平衡研究

被引:0
|
作者
李洪晓 [1 ]
兰志宇 [1 ]
蒋敏 [1 ]
秦高梧 [1 ]
机构
[1] 东北大学材料各向异性与织构教育部重点实验室
关键词
Nb-Ni-Ti系; 相平衡; 共晶转变;
D O I
10.14186/j.cnki.1671-6620.2012.03.006
中图分类号
TG113.14 [状态图(相图)];
学科分类号
080502 ;
摘要
采用合金平衡组织结构分析法结合热分析,研究了Nb-Ni-Ti系L(βTi,Nb)+TiNi共晶相平衡.结果表明,随着温度的降低,处于液相L、(βTi,Nb)和TiNi相三相平衡时的(βTi,Nb)相中Ni含量(摩尔分数)几乎不变,约为3.5%;而Nb的摩尔分数逐渐降低,从1 050℃时的62.6%,降为1 000℃时的54.1%;但TiNi相的成分变化不大.L+(βTi,Nb)+TiNi三相区也随温度的降低逐渐远离Nb-TiNi连线.并且随着Nb的溶入,Ti2Ni相的熔化温度也得以提高.
引用
收藏
页码:179 / 182
页数:4
相关论文
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