高温Ti-60合金中氢行为的研究  

Study on Hydrogen Behavior of Ti-60 Alloy at High Temperature

作　　者：李芳[1] 何佳[1] 童建华[1] 李曼萍[1] 

机构地区：[1]上海工程技术大学材料工程学院,上海201620

出　　处：《热加工工艺》2009年第2期6-9,共4页Hot Working Technology

基　　金：上海市教委上海高校培养优秀青年教师科研专项基金资助项目(06XPYQ19);上海市教委重点学科资助项目(J51402);校重点学科资助项目(XK0705)

摘　　要：研究了氢对Ti-60合金组织和相变的影响规律及反应机理。结果表明,氢可以改变初生α相和β相的体积分数,(α+β)/β相变点随氢的加入而降低,加入0.65wt%的氢可使其相转变温度从1025℃降至850℃。氢使β相的晶格常数发生变化,其原因是氢固溶于β相。真空脱氢可使氢恢复到安全浓度,并且晶粒组织得到细化。The effects of hydrogen changing on the microstructure and (α+β)/β transformation of Ti-60 alloy at high temperature were investigated. The results show that the volume fraction of primary α and the (α +β)/β transformation temperature decrease continuously with the increase of hydrogen content. The transformation temperature of Ti-60 alloy containing 0.65wt% hydrogen decreases from 1025 ℃ to 850℃. The lattice parameter of β phase increases because the hydrogen atoms are involved in β phase. The results also...

关 键 词：氢 Ti-60合金 显微组织 相转变 

分 类 号：TG146.23[一般工业技术—材料科学与工程]