机械合金化法强化Cu10Sn合金-中国有色金属学报.PDF
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第 23 卷第 8 期 中国有色金属学报 2013 年 8 月
Vol.23 No.8 The Chinese Journal of Nonferrous Metals Aug. 2013
文章编号:10040609(2013)08216907
机械合金化法强化 Cu10Sn合金
于 乐,贾成厂
(北京科技大学 材料科学与工程学院,北京 100083)
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 FeAl 固溶粉末。利用
该 FeAl 固溶粉末弥散强化 Cu10Sn合金,烧结过程中,FeAl 固溶粉末转变为 Fe Al 金属间化合物。结果表明:
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与传统 Cu10Sn 合金滑动轴承材料相比,强化后的 Cu10Sn 合金的硬度、压溃强度和摩擦性能等明显提高;当
FeAl 固溶粉末含量为 3%(质量分数)时,Cu10Sn 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%。
关键词:金属间化合物;机械合金化;弥散强化;固溶;摩擦;磨损
中图分类号:TG146.1 文献标志码:A
Strengthening of Cu10Sn alloy by mechanical alloying
YU Le,JIAChengchang
(School ofMaterial Science and Engineering, University Science and Technology Beijing, Beijing 100083, China)
Abstract: The FeAl solid solution powder of Al diffused in the Fe matrix was prepared by high energy ball milling.
Alloy of tinbronze was dispersion strengthened by FeAl solid solution powder. FeAl solid solution powder changes
into Fe Al intermetallic during sintering process. The results show that the hardness, crushing strength and friction
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performance of strengthened alloys are significantly improved, compared with the traditional tinbronze. The optimum
content of the solidsolution 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
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