摘要
Ce微合金化是开发低成本、高性能镁合金的一种有效途径,对我国镁资源的循环利用和可持续发展具有重要的意义.本文综述了近五年来Ce微合金化在镁合金中的研究进展,分别讨论了Ce微合金化对Mg-Al、Mg-Zn、Mg-Gd、Mg-Y系列合金的微观组织、时效析出行为、织构演变以及力学性能的影响.为建立含Ce镁合金中成分与力学性能间的关系提供了数据支持.此外,还详细阐述了Ce的添加对提高镁合金耐蚀性的强化机理.最后指出了Ce微合金化在镁合金应用中目前面临的一些问题和思考,提出了进一步深入研究的几个方面,以期拓宽轻量化稀土镁合金的应用范围.
Abstract
Ce microalloying is an effective way to develop low-cost and high-performance magnesium alloys,which is of great significance for the recycling and sustainable development of magnesium resources in China.This article reviews the research progress of Ce microalloying in magnesium alloys in the past five years,and discusses the effects of Ce microalloying on the microstructure,aging precipitation behavior,texture evolution,and mechanical properties of Mg-Al,Mg-Zn,Mg-Gd,and Mg-Y series alloys.This provides data support for establishing the relationship between composition and mechanical properties in Ce containing magnesium alloys.In addition,the strengthening mechanism of Ce addition on improving the corrosion resistance of magnesium alloys is also elaborated in detail.Finally,some problems and considerations faced by Ce microalloying in the application of magnesium alloys are pointed out,and several aspects for further in-depth research are proposed,in order to broaden the application range of lightweight rare-earth magnesium alloys.
基金项目
国家自然科学基金(52201119)
国家自然科学基金(52371108)
中原英才计划—中原青年拔尖人才([2021]44号)
河南省自然科学基金(222300420435)
NETL
NSTL
万方数据