稀土元素细化变质铝合金及其相关热处理研究的进展

Progress in Research on Refining Metamorphic Aluminum Alloy with Rare Earth Element and Related Heat Treatment

近年来,随着科学技术和制造业的发展,对铝合金的性能要求也越来越高,采用稀土元素改善铝合金的组织和力学性能已成为研究的热点。综述了单一添加稀土元素、稀土元素与其他元素的复合添加及稀土元素与细化剂的复合添加对铝合金组织和性能的影响及其机制。简述了采用稀土元素改善铝合金组织和性能方面存在的问题及今后的研究方向。

In recent years, with the development of science, technology and manufacturing industry, the performance requirement for aluminum alloy is getting higher and higher too, and the improvements in microstructure and mechanical properties with rare earth elements has been become a research hotspot. The effects of single addition of rare earth element and composite addition of rare earth element and other elements as well as rare earth element and refiners on the microstructure, properties of aluminum alloy and the mechanism were outlined. The problems at present in improvements in microstructure and performance of aluminum alloy with rare earth element and the research direction in the future were described briefly.