摘要
作者分析了铸造共晶铝硅合金与钢滑动磨损磨屑的形态、成分变化及形成机理,讨论了金属转移特性。研究表明,片状磨屑的正面和背面分別反映了相应的磨损表面形态和次表层断裂过程;铝硅材料向钢磨面上的转移是典型的粘着转移,而铁向铝硅合金磨面上的转移是粒子镶嵌的结果;即将发生粒子剥落的铝硅合金磨损表面区域,由表及里为复合层、变形层相未变形母体材料。
Topographies, change of composition and formation mechanism of wear debris of the binary eutectic Al-Si alloy are studied, and behaviour of metallic transfer happened in the sliding interface are analyzed. The upsides of flaky wear particles express the corresponding morphology on the worn surface and their undersides display the fracture process in the subsurface. Transfer of aluminium and silicon to the steel is typically adhesive and transfer of iron to the Al-Si alloy is due to wear particles embeded in the surface layer. The worn layer of Al-Si alloy where only wear debris are going to delaminate is composed of composite layer, deformed layer and undeformed parent material from the surface to the inside.
出处
《机械工程材料》
CAS
CSCD
1990年第4期6-9,共4页
Materials For Mechanical Engineering
