摘要
利用高能球磨方法实现Fe和Al的合金化,制备出一种Al粉扩散于Fe基体中的Fe-Al固溶粉末。利用该Fe-Al固溶粉末弥散强化Cu-10Sn合金,烧结过程中,Fe-Al固溶粉末转变为Fe3Al金属间化合物。结果表明:与传统Cu-10Sn合金滑动轴承材料相比,强化后的Cu-10Sn合金的硬度、压溃强度和摩擦性能等明显提高;当Fe-Al固溶粉末含量为3%(质量分数)时,Cu-10Sn合金的硬度和强度达到最佳,与基体合金相比分别提高了57%和127%,摩擦因数从0.38降低到0.27,磨损量从0.30%降低到0.07%。
The Fe-Al solid solution powder of Al diffused in the Fe matrix was prepared by high energy ball milling. Alloy of tin-bronze was dispersion strengthened by Fe-Al solid solution powder. Fe-Al solid solution powder changes into Fe 3 Al intermetallic during sintering process. The results show that the hardness, crushing strength and friction performance of strengthened alloys are significantly improved, compared with the traditional tin-bronze. The optimum content of the solid-solution powder is 3%（mass fraction）, the hardness and strength of alloys are best, which increase by 57%and 127%, respectively, the friction coefficient decreases from 0.38 to 0.27, the wear less decreases from 0.30%to 0.07%.
出处
《中国有色金属学报》
EI
CAS
CSCD
北大核心
2013年第8期2169-2175,共7页
The Chinese Journal of Nonferrous Metals
基金
国家自然科学基金资助项目(51274041)
关键词
金属间化合物
机械合金化
弥散强化
固溶
摩擦
磨损
intermetallic
mechanical alloying
dispersion strengthening
solid solution
friction
wear
