Ti、Zr加入形式对TZM合金组织和性能的影响  

Effects of Ti and Zr Adding Forms on Microstructure and Properties of TZM Alloy

作　　者：朱向炜[1] 张国赏[1,2] 魏世忠[1,2] 徐流杰[1,2] 崔超鹏[2] 

机构地区：[1]河南科技大学材料科学与工程学院,河南洛阳471003 [2]河南科技大学河南省耐磨材料工程技术研究中心,河南洛阳471003

出　　处：《稀有金属与硬质合金》2013年第4期30-33,共4页Rare Metals and Cemented Carbides

基　　金：国家自然科学基金资助项目(50972039)

摘　　要：采用粉末冶金法制备了TZM合金,研究了不同Ti、Zr加入形式对TZM合金组织形貌、维氏硬度和高温变形抗力的影响。结果表明:加入Ti、Zr元素的TZM合金中存在大量Ti、Zr氧化物及单质,可有效阻碍位错运动,提高合金强度;以TiH2-Zr形式加入的TZM合金,第二相分布均匀弥散,且高温变形抗力最大。TZM alloy was prepared by powder metallurgy,and the effects of Ti and Zr adding forms on its microstructure and morphology, Vickers hardness, high temperature deformation resistance were investiga- ted. The results indicate that the addition of Ti and Zr elements results in lots of Ti and Zr oxides and sim- ple substances in TZM alloy, effectively hindering dislocation motion and improving alloy intensity. TZM alloy with Ti and Zr added in the form of TiH2-Zr has dispersed and uniform second phase and the greatest high temperature deformation resistance.

关 键 词：TZM合金 Ti、Zr加入形式 TiH2-Zr 组织形貌 硬度 高温变形抗力 

分 类 号：TG146.4[一般工业技术—材料科学与工程]