新型铝青铜合金的摩擦性能  

Tribological Properties of A Novel Aluminum Bronze

作　　者：李文生[1] 路阳[1] 金玉花[1] 袁利华[1] 王智平[1] 

机构地区：[1]兰州理工大学甘肃省有色金属新材料省部共建国家重点实验室,兰州730050

出　　处：《材料导报》2005年第4期121-123,共3页Materials Reports

基　　金：甘肃省科技攻关项目(GS992-A52-052);兰州理工大学基金项目(12312)

摘　　要：试制了一种新型高强耐磨铝青铜,探讨了边界润滑条件下该合金与不锈钢对摩时热处理组织和摩擦磨损行为的关系。结果表明,经920℃固溶580℃时效处理后,合金具有优良的综合机械性能和摩擦学性能,主要的磨损形式为轻度的粘着磨损和磨粒磨损;经920℃固溶450℃低温时效后,合金性硬脆,耐磨性降低,主要的磨损形式为严重的磨粒磨损和疲劳磨损。A novel aluminum bronze are developed and the relationships between the micro characteristics and boundary triboloyical behaviors of the alloy are investigated.Results show that quenched(920℃)followed by mid- dle temperature(580℃)aged,the bronze possesses the best overall mechanical properties and excellent tribological properties,the dominant wear forms are light adhesive and abrasive wear.Quenched(920℃)in company with low temperature (450℃)aged,the hardness of the alloy increases sharply while strength decreases,and the bronze pre- sents a poor tribological property,the dominant wear forms are serious abrasive and fatigue wear.

关 键 词：铝青铜合金 摩擦性能 摩擦磨损行为 边界润滑条件 综合机械性能 磨粒磨损 磨损形式 热处理组织 摩擦学性能 高强耐磨 时效处理 粘着磨损 低温时效 疲劳磨损 20℃ 不锈钢 450 耐磨性 固溶 

分 类 号：TH117.1[机械工程—机械设计及理论] TU857[建筑科学]