摘要
对TiAlZr合金及其热喷涂Ni-Cr合金涂层的高温微动磨损性能进行了对比研究。不同温度下的微动磨损实验结果表明:在滑移区,温度对微动磨损的影响十分显著,TiAlZr合金抗微动磨损能力随着温度上升而急剧下降,热喷涂Ni-Cr合金涂层抗高温微动磨损能力随着温度上升而增强。在400℃时,由于氧化膜快速生成的原因,热喷涂Ni-Cr合金涂层具有优异的抗高温微动磨损特性。
TiAlZr alloy and its thermal spraying Ni-Cr coatings are tested on the fretting wear machine and investigated comparatively at different temperatures. It is showed that when the fretting is in the gross-slip regime, temperature has great effect on the fretting wear. With temperature increasing, in the gross-slip regime, wear-resistant capability of TiAIZr titanium alloy decreases; however, that of thermal spraying Ni-Cr coatings, which is excellent particularly at 400℃ because of oxide films formation, increases.Frictional properties are improved with thermal spraying Ni-Cr coatings on TiAlZr alloy substrate.
出处
《核动力工程》
EI
CAS
CSCD
北大核心
2005年第4期380-383,共4页
Nuclear Power Engineering
基金
核燃料及材料国家级重点实验室基金(51481070104QT2201)资助
