半固态挤压Al-Si-Fe合金磨损行为的研究  

Wear Behavior of Al-Si-Fe Alloy in Semi-solid Squeezing Casting

作　　者：袁晓光[1] 赵树国[1] 黄宏军[1] 于海朋[1] 

机构地区：[1]沈阳工业大学

出　　处：《特种铸造及有色合金》2006年第9期562-565,共4页Special Casting & Nonferrous Alloys

基　　金：辽宁省自然科学技术基金资助项目(20022034);辽宁省教育厅科技基金资助项目(202063284)

摘　　要：采用半固态挤压成形技术制备了Al-Si-Fe耐磨铝合金,分析了合金的微观组织,利用磨损试验研究了合金的耐磨性和磨损失效形式。研究结果表明:半固态挤压成形合金具有细小、均匀的微观组织和良好的耐磨性,磨损失效形式以滑动和磨粒磨损为主。半固态挤压成形的挤压比越高,耐磨性越好;干摩擦条件下半固态合金的磨损质量损失是铸态合金的49.2%,润滑条件下是铸态合金的40.0%。Microstructure and wear behavior of Al-Si-Fe alloy prepared by semi-solid squeezing casting have been analyzed. The results show that the alloy possesses fine and uniform microstructure and excellent wear resistance in which slide and abrasive wear are dominant in the wear behavior. The higher the squeezing ratio is, the better the wear resistance is. The weight loss of alloy is 50.98% of that of as-cast alloy under the condition of dry friction, while is 57.77 %of that of ones under the condition of lubricant conditon.

关 键 词：半固态 AL-SI-FE合金 摩擦磨损 

分 类 号：TG376[金属学及工艺—金属压力加工]