凝固过程中获得细小均匀的等轴晶组织既可以提高材料的强度和硬度,又可以提高其塑性和韧性.晶粒细化是改善铸件质量和后续加工性能的重要途径,化学晶粒细化法由于在细化过程中操作简单,无需改进实验设备,细化效果良好受到科研工作者的重视.结合作者采用化学法对铝及铝合金、纯镍和纯锡晶粒细化的研究工作,综述几种典型有色金属及合金的晶粒细化剂及细化效果,并总结国内外关于化学法细化晶粒的经典理论.最后,总结并展望了化学法细化有色金属及合金的发展趋势.
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