CAJ | 학술논문

由非自耗电弧熔法制备 Al62Cu25.5Fe12.5单相准晶合金,再将该合金进行球磨处理制备了 Al62Cu25.5Fe12.5二十面体准晶粉末,并以其为磨料配制研磨膏,对软金属 Al 进行表面研磨处理.结果表明:经准晶研磨处理后的纯 Al 表面平整无划痕,粗糙度为 Ra=0.306,达到一般精研要求.与传统金刚石磨料不同,这种准晶研磨材料在机械研磨时可避免造成对软金属表面的二次划伤,且表现出对软金属基体表面缺陷的修复能力.
유비자모전호용법제비 Al62Cu25.5Fe12.5단상준정합금,재장해합금진행구마처리제비료 Al62Cu25.5Fe12.5이십면체준정분말,병이기위마료배제연마고,대연금속 Al 진행표면연마처리.결과표명:경준정연마처리후적순 Al 표면평정무화흔,조조도위 Ra=0.306,체도일반정연요구.여전통금강석마료불동,저충준정연마재료재궤계연마시가피면조성대연금속표면적이차화상,차표현출대연금속기체표면결함적수복능력.
Al62Cu25.5Fe12.5 icosahedral quasicrystal (IQC) single-phase alloy was prepared by non-consumed electric arc melting method, then the Al62Cu25.5Fe12.5 IQC powders were obtained by treating the single-phase alloy with ball mill. The ball-milled Al62Cu25.5Fe12.5 IQC powders were used to make a ploshing agent with appropriate ratios with other ingredients. The polishing experiments were done on industrial pure Al. The results show that, after polishing, the sample surface reaches a good roughness of Ra=0.306, and no fatal scratch marks are oberved on it. The general requirement of precise surface grinding is met. Comparing with commercial diamond grinding agents, the surface seondary scratch is avoided, and easpecially, the new grinding material is found to deliver a‘repairing’ effect on the marcoscopic surafce defects of pure Al.