| 热挤压AlSiPb合金磨损表面膜的作用及组成 |
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| 引用本文： | 吕晓霞,陆有,许德尉,安健.热挤压AlSiPb合金磨损表面膜的作用及组成[J].材料科学与工艺,2004,12(2):209-211. |
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| 作者姓名： | 吕晓霞 陆有 许德尉 安健 |
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| 作者单位： | 吉林大学,材料科学与工程学院,吉林,长春,130025;吉林大学,汽车材料教育部重点实验室,吉林,长春,130025;吉林大学,链传动研究所,吉林,长春,130025 |
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| 基金项目： | 高等学校博士学科点专项科研项目 |
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| 摘 要： | 为探讨Al-Pb轴承合金的磨损机理,研究了热挤压Al-Si-Pb轴承合金的磨损表面膜作用及组成.研究表明:磨损载荷在240～280 N时,摩擦因数与载荷关系曲线中出现一低谷,磨损率与载荷关系曲线中出现一高原现象,观察发现,在此载荷范围内磨损试样表面形成了一层黑色膜,黑色膜降低了Al-Si-Pb合金的摩擦因数和磨损率;能谱分析表明黑色润滑膜中含有Al、Al2O3、Fe2O3、PbSiO3和Si等物质.
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| 关 键 词： | 热挤压 Al-Si-Pb 轴承合金 磨损 表面膜 |
| 文章编号： | 1005-0299(2004)02-0209-03 |
| 修稿时间： | 2002年10月19日 |
The properties and composition of the wear surface film of hot extruded Al -Si -Pb bearing alloy |
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| LU Xiao-xia.The properties and composition of the wear surface film of hot extruded Al -Si -Pb bearing alloy[J].Materials Science and Technology,2004,12(2):209-211. |
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| Authors: | LU Xiao-xia |
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| Affiliation: | LU Xiao-xia~ |
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| Abstract: | In order to investigate the wear mechanism of Al-Pb alloy, this article investigates the properties and the composition of the wear surface of the hot extruded Al-Si-Pb bearing alloy. Results show that the friction coefficient curve of the alloy appears to be a minimum value between 240 N and 280 N wear load, while the wear rate curve reaches a plateau peak. It is found by an optical microscope and SEM that the wear surface of the samples forms a black thin film. X-ray photoelectron spectroscopy (XPS) analysis reveales that a black thin film is composed of Al, Al_2O_3,Fe_2O_3, PbSiO_3 and Si. This black thin film decreases the friction coefficient and wear rate of the alloy. |
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| Keywords: | hot extruded Al-Si-Pb bearing alloy wear film surface |
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