等离子渗Mo提高TiAl基合金抗高温氧化性能的研究  

Study on High-temperature Oxidation Resistance of Mo Alloying Layer on TiAl Based Alloy Surface by Double Glow Plasma Alloying Technique

作　　者：许玮[1] 刘小萍[2] 徐重[2] 

机构地区：[1]山西大同大学工学院,山西大同037003 [2]太原理工大学表面工程研究所,山西太原030024

出　　处：《热加工工艺》2008年第24期109-110,113,共3页Hot Working Technology

摘　　要：研究了等离子渗Mo处理对Ti-46.5Al-1.0V-2.5Cr(原子分数)合金抗高温氧化性能的影响。结果表明:等离子渗Mo处理能显著提高TiAl基合金的抗高温氧化能力,这主要是因为TiAl基合金经等离子渗Mo处理后在表面形成含Ti-Al-Mo的致密合金层,该致密合金层具有良好的抗高温氧化性能。The effect of Mo surface alloying on the high-temperature oxidation resistance of Ti-46.5Al-1.0V-2.5Cr （at%） was investigated. The results show that the high-temperature oxidation resistance of TiAI based alloy increases apparently after Mo surface alloying, which is due to the formation of a compact Ti-Al-Mo alloyed layer on the surface of TiAl based alloy, and the alloyed layer has favorable high-temperature oxidation resistance,

关 键 词：TIAL基合金 等离子渗Mo 抗高温氧化性能 

分 类 号：TG174.44[金属学及工艺—金属表面处理]