摘要
研究了固溶处理对Ti-14Al-10Nb合金显微组织和摩擦磨损性能的影响规律。结果表明,锻态Ti-14Al-10Nb合金的显微组织由α_(2)相和β相组成,其中α_(2)相呈细小、弯曲的棒状形态。固溶温度的升高促进了显微组织中α_(2)相向β相的转变,导致α_(2)相的含量减少,同时棒状α_(2)相的形态逐渐粗化。锻态Ti-14Al-10Nb合金的摩擦因数及磨损量均小于经固溶处理后试样,表明锻态时合金的耐磨性较好;而且随着固溶温度的升高,α_(2)相溶解程度增加,合金耐磨性随之下降。Ti-14Al-10Nb合金主要磨损形式为磨粒磨损和氧化磨损。
Effect of solution treatment on the microstructure and friction and wear properties of Ti-14Al-10Nb alloy was investigated.The results show that the microstructure of the as-forged Ti-14Al-10Nb alloy is composed ofα_(2)andβphases,with theα_(2)phase in a fine,curved rod-like form.The increase of solution temperature promotes the transformation ofα_(2)phase toβphase,resulting in a decrease in the content ofα_(2)phase and a gradual coarsening of the rod-likeα_(2)phase morphology.The friction coefficient and wear mass loss of the as-forged Ti-14Al-10Nb alloy are smaller than those of the solution treated specimens,indicating that the wear resistance of the alloy is better in the forged state.The wear resistance of the alloy decreases as the dissolution of theα_(2)phase increases with the increase of solution temperature.The main forms of wear of the Ti-14Al-10Nb alloy are abrasive wear and oxidation wear.
作者
秦春
段昊灼
李伟
Qin Chun;Duan Haozhuo;Li Wei(School of Mechanical and Electrical Engineering,North Minzu University,Yinchuan Ningxia 750021,China;Ningxia Engineering Research Center for Hybrid Manufacturing System,Yinchuan Ningxia 750021,China;School of Materials Science and Engineering,North Minzu University,Yinchuan Ningxia 750021,China)
出处
《金属热处理》
CAS
CSCD
北大核心
2023年第12期56-59,共4页
Heat Treatment of Metals
基金
宁夏自然科学基金(2022AAC03276)
国家自然科学基金(51804011)
北方民族大学高层次人才项目(2019BGGZ04)。
