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随着汽车轻量化、高容量化、低成本化的趋势,作为外壳材料的铝合金的性能研究成为了近年的热点,而稀土元素的化学活性很强,将其加入到合金中会起到净化熔体、细化晶粒、微合金化等积极作用。本文综述了国内外关于稀土在铝铜合金中的应用研究现状,通过对稀土在铝铜合金中的作用机理的阐述,从晶粒大小、析出物、相结构等多个方面,讨论了稀土对铝铜合金的显微组织、力学性能和耐腐蚀性能等方面产生的影响,提出了稀土在铝铜合金发展中需要注意的问题,为将稀土加入到2XXX系合金并改善综合性能的研究提供了参考。
Abstract：With the trend of light weight, high capacity and low cost of automobiles, the research on the properties of aluminum alloys as shell materials has become popular in recent years. The chemical activity of rare earth elements is very strong, and its addition to the alloy plays a positive role in purifying melts, refining grains, and microalloying. The present research status of the application of rare earths in Al-Cu alloys at home and abroad is reviewed. Through the description of the action mechanism of rare earths in Al-Cu alloys, the effects of rare earth on microstructure, mechanical properties and corrosion resistance of Al-Cu alloy are discussed from the aspects of grain size, precipitates and phase structure. and some problems worthy of attention in the development of Al-Cu alloys are put forward. It provides a reference for the research of adding rare earth to 2 XXX series alloys and improving the comprehensive properties.
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基本信息:
DOI：10.13289/j.issn.1009-6264.2018-0455
中图分类号:TG146.21
引用信息:
[1]田伟,胡梦楠,孙玥,等.稀土元素对铝铜合金性能影响的研究进展[J],2019,40(03):12-19.DOI:10.13289/j.issn.1009-6264.2018-0455.
基金信息:
国家重点实验室项目(2018GZKF03007);; 国家自然科学基金(10874118)