硅酸盐通报2011，Vol.30Issue(4)：982-987,6.
一种Ti3Al基高温合金的氧化行为研究
Investigation on the Oxidation Behavior of a Ti3Al Based Superalloy
摘要
Abstract
The oxidation behavior of the Ti-24Al-14Nb-3V-0. 5Mo (at%) alloy was studied in air at temperatures from 700 ℃ to 900 ℃ by OM, XRD and SEM. The oxide scales consist mainly of TiO2 and A12O3 in all cases. With increasing the exposure temperature and time, the particles of TiO2 and A12O3 coarsen and the oxide scale gradually become thicker. The oxidation activation energy of the alloy significantly decreases with increasing temperature. The oxidation activation energy between 700 ℃ and 800 X is determined to be 205 kj / mol, and it decreases to 119 kj / mol between 800 ℃ and 900 ℃.. The alloy exhibits a good oxidation resistance at 700 ℃ , while the oxidation resistance becomes poor at 800 ℃ and 900 ℃.关键词
Ti3Al基高温合金/抗氧化性/TiO2/Al2O3Key words
Ti3Al based superalloy/ oxidation resistance /TiO2/Al2O3分类
化学化工引用本文复制引用
刘俊,刘艳,徐春梅,李小武,武英..一种Ti3Al基高温合金的氧化行为研究[J].硅酸盐通报,2011,30(4):982-987,6.基金项目
上海市教育委员会东方学者特聘教授项目(DF2009-01) （DF2009-01）
上海市教育委员会科研创新重点项目(10ZZ126) （10ZZ126）
上海市教委重点学科基金资助项目(J51504) （J51504）
上海应用技术学院引进人才项目(YJ2009-30) （YJ2009-30）
中央高校基本科研业务费专项资金项目(N090505001) （N090505001）
新世纪优秀人才支持计划项目(NCET-07-0162) （NCET-07-0162）
