倾斜板铸造不同成分铝铅耐磨合金的摩擦磨损性能
Tribological Properties of Al-Pb Wear Resistant Alloy with Different Compositions Prepared by Sloping Plate Casting Technology
摘 要
采用倾斜板铸造技术制备了铝铅合金,并用扫描电子显微镜对磨擦表面的形貌和成分等进行了观察与分析,研究了合金的基本特性和不同合金元素对摩擦学性能的影响,探讨了干摩擦条件下铝铅合金与45钢对摩时的磨损机理.结果表明:与铝合金基体相比,作为软相铅、锡的加入使铝铅合金的摩擦因数降低了15%,磨损量减小了近70%;随着锡含量的增大,其摩擦因数和磨损质量呈现先减小后增大的趋势;铝铅合金的摩擦学性能优良,其磨损形式为轻度的粘着磨损、磨粒磨损和疲劳磨损的复合磨损.
倾斜板
摩擦磨损
磨损形式
alloying element
sloping plate
friction and wear
wear form
Abstract
Al-Pb alloy was synthesized by sloping plate casting technology.Observation and analysis of the worn surface morphology and composition were carried out by using scanning electron microscopy.The basic characteristics of the alloy and effects of different alloying elements on tribological properties were researched.Wear mechanism of mutual friction between the Al-Pb alloy and 45 steel under dry friction condition was discussed.The results show that accession of lead and tin as the soft phases,compared with the aluminum alloy based phase,made the friction coefficient of the Al-Pb alloy reduce by 15%,wear loss reduce by nearly 70%.The friction coefficient and weightlessness decreased first and then increased with increasing the tin concerntration.The Al-Pb alloy had excellent tribological properties and its wear forms were compound wear of abrasive wear,adhesive wear and fatigue wear.
中图分类号 TG146.2
所属栏目 材料性能及其应用
基金项目
收稿日期 2009/12/18
修改稿日期 2010/6/7
网络出版日期
作者单位点击查看
备注刘二勇(1982-),男,河北定州人,硕士研究生.
引用该论文: LIU Er-yong,CHEN Ti-jun,BAI Ya-ping,PENG Fang-qing. Tribological Properties of Al-Pb Wear Resistant Alloy with Different Compositions Prepared by Sloping Plate Casting Technology[J]. Materials for mechancial engineering, 2010, 34(12): 55～58
刘二勇,陈体军,白亚平,彭芳庆. 倾斜板铸造不同成分铝铅耐磨合金的摩擦磨损性能[J]. 机械工程材料, 2010, 34(12): 55～58
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参考文献
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【2】MOHAN S,AGARWALA V,RAY S.The effect of lead content on the wear characteristics of a stir-cast Al-Pb alloy[J].Wear,1990,140(1):83-92.
【3】PATHAK J P,TIWARI S N,MALHOTRA S L.Production of high leaded aluminium alloy by impeller mixing[J].Metals Technology,1979,6(10):442-445.
【4】倪红军.Al-Pb合金轴瓦材料的发展综述[J].特种铸造及有色合金,1994(5):29-32.
【5】虞觉奇,易文子质,陈邦迪,等.二元合金状态图集[M].上海:上海科学技术出版社,1987.
【6】孙大仁,杨晓红.铸造铝铅滑动轴承合金的制备及其显微组织[J].特种铸造及有色合金,1998(5):24-26.
【7】LEPPER K,JAMES M,CHASHECHKINA J,et al.Sliding behavior of selected aluminum alloys[J].Wear,1997,203:46-56.
【8】耿浩然,马家骥.Al-Pb-Cu减摩合金的研制[J].特种铸造及有色合金,1989(6):12-16.
【9】孙大仁,王连武,刘勇兵,等.塑性变形对搅拌铸造铝-铅轴承合金组织和性能的影响[J].机械工程材料,2003,27(8):31-33.
【10】唐仕英,刘晓新,郑开伟,等.纳米石墨/铝基复合材料的摩擦磨损性能[J].机械工程材料,2007,31(3):44-46.
【11】陈体军,刘二勇,郝远,等.倾斜板铸造Al-Pb难混溶合金组织和磨损性能[C]//2009中国铸造活动周论文集,沈阳:中国机械工程学会铸造分会,2009.
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