稀土铈对铝青铜组织及耐磨性的强化作用

纪嘉明; 鲁远勇; 吴晶; 孟国萃

doi:10.15980/j.tzzz.2013.07.015

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稀土铈对铝青铜组织及耐磨性的强化作用
Microstructure and Wear Resistance of New Aluminum Bronze with Ce
2013年33卷第7期页码：672-675
纸质出版日期： 2013 ，
DOI： 10.15980/j.tzzz.2013.07.015

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[1]纪嘉明,鲁远勇,吴晶,孟国萃.稀土铈对铝青铜组织及耐磨性的强化作用[J].特种铸造及有色合金,2013,33(07):672-675.

Ji Jiaming1, Lu Yuanyong3, Wu Jing1, et al. Microstructure and Wear Resistance of New Aluminum Bronze with Ce[J]. Special Casting & Nonferrous Alloys, 2013,33(7):672-675.
[1]纪嘉明,鲁远勇,吴晶,孟国萃.稀土铈对铝青铜组织及耐磨性的强化作用[J].特种铸造及有色合金,2013,33(07):672-675. DOI： 10.15980/j.tzzz.2013.07.015.

Ji Jiaming1, Lu Yuanyong3, Wu Jing1, et al. Microstructure and Wear Resistance of New Aluminum Bronze with Ce[J]. Special Casting & Nonferrous Alloys, 2013,33(7):672-675. DOI： 10.15980/j.tzzz.2013.07.015.

摘要

研究了稀土铈含量（质量分数）为0、0.05%、0.15%、0.25%的Cu-Al-Ni-Fe-Mn铝青铜的组织变化

并采用M-2000型磨损试验机进行了对比试验。结果表明

适量加入稀土铈能有效地细化显微组织

提高合金的强度、延展性和耐磨性

在Cu-Al-Ni-Fe-Mn合金中添加0.15%稀土铈时

铝青铜晶粒细小、圆润

分布均匀

无论是在油润滑条件还是干摩擦条件下材料耐磨性均达到最好;当稀土铈添加量达到0.25%时

角块状、细片状组织增加

晶界粗化

铝青铜耐磨性呈下降趋势。

Abstract

Effects of varied Ce addition

such as 0. 0.05%

0.15%

0.25% in weight

on microstructure and wear resistance of Cu-Al-Ni-Fe-Mn aluminum bronze were investigated by OM （optical microscopy）

SEM （scanning electron microscopy） and M-2000-type abrasion tester. The results indicate that the addition of proper Ce content can effectively refine the microstructure and improve the tensile strength

ductility and wear resistance. With 0.15% Ce addition

fine and round grain with uniform distribution can be observed in the Cu-Al-Ni-Fe-Mn alloy

and desirable wear resistance can be obtained. However

with 0.20% Ce addition

the polygonal and lamellar structure are increased in the alloy with the coarseness of grain boundary

leading to the deterioration of wear resistance of the alloy materials.