Cu-Ni-Al-Be合金摩擦磨损性能研究

李健; 吕秀银

doi:10.15980/j.tzzz.2021.10.006

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Cu-Ni-Al-Be合金摩擦磨损性能研究
Friction and Wear Properties of Cu-Ni-Al-Be Alloy
2021年41卷第10期页码：1215-1218
纸质出版日期： 2021 ，
DOI： 10.15980/j.tzzz.2021.10.006

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李健, 吕秀银. Cu-Ni-Al-Be合金摩擦磨损性能研究[J]. 特种铸造及有色合金杂志, 2021,41(10):1215-1218.

Li Jian, Lü Xiuyin. Friction and Wear Properties of Cu-Ni-Al-Be Alloy[J]. Special Casting & Nonferrous Alloys, 2021,41(10):1215-1218.
李健, 吕秀银. Cu-Ni-Al-Be合金摩擦磨损性能研究[J]. 特种铸造及有色合金杂志, 2021,41(10):1215-1218. DOI： 10.15980/j.tzzz.2021.10.006.

Li Jian, Lü Xiuyin. Friction and Wear Properties of Cu-Ni-Al-Be Alloy[J]. Special Casting & Nonferrous Alloys, 2021,41(10):1215-1218. DOI： 10.15980/j.tzzz.2021.10.006.

摘要

用UMT-2型摩擦磨损试验机研究了锻态与固溶时效态Cu-Ni-Al-Be合金的摩擦磨损性能

采用扫描电镜(SEM)和透射电镜观察了合金的磨损形貌和时效强化相形貌。结果表明

Cu-Ni-Al-Be合金经1 000℃×1.5 h固溶+450℃×3 h时效处理后

主要强化相为共格析出的NiBe相

低载荷低转速条件下

合金的时效态摩擦因数及磨损量比锻态要小。锻态与固溶时效态Cu-Ni-Al-Be合金在低载低速下

磨损机制主要以磨粒磨损与粘着磨损为主;在高速高载下

合金的磨损机制主要以氧化磨损与剥层磨损为主。Cu-Ni-Al-Be合金经固溶时效处理后

呈现出良好的耐磨性能。

Abstract

The friction and wear properties of forging and solution-aged Cu-Ni-Al-Be alloys were investigated by UMT-2 friction and wear tester. Wear morphology and the aged precipitation of Cu-Ni-Al-Be alloy were characterized by SEM and TEM. The primary phase of Cu-Ni-Al-Be alloy is coherent NiBe precipitation after solution at 1 000 ℃×1.5 h and aged at 450 ℃×3 h treatment. The friction coefficient and wear loss of aged alloy is less than that of the forged ones at low load and low speed. The wear mechanisms of both forged and solution-aged alloy are dominated by abrasive wear and adhesive wear at low load and low speed

which are oxidation wear and delamination wear at high load and high speed. Wear resistance of Cu-Ni-Al-Be alloy is desirable after solution-aged treatment.