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Title:: Progress in Research of Ultrafine Intermetallic Compound Particles Reinforced Mg Li Matrix Composites

Author(s):: WU Guoqing; ZHANG Qingqing; HUANG Zheng; (School of Materials Science and Engineering, Beihang University, Beijing 100191, China)

摘要:: 顆粒增強(qiáng)Mg Li基復(fù)合材料作為一種新型的超輕結(jié)構(gòu)材料，以其高的比強(qiáng)度、比剛度，良好的阻尼減震及電磁屏蔽性，在航天航空領(lǐng)域與交通運(yùn)輸、電子包裝、體育用品等民用領(lǐng)域具有廣闊應(yīng)用的前景。從復(fù)合材料的組織表征、力學(xué)性能、制備方法及加工工藝等方面，概述了超細(xì)金屬間化合物顆粒增強(qiáng)MgLi基復(fù)合材料制備技術(shù)的進(jìn)展和研究狀況；闡述了超細(xì)金屬間化合物顆粒增強(qiáng)Mg Li 基復(fù)合材料的界面及強(qiáng)韌化機(jī)制，著重介紹了包含過(guò)渡型界面層與強(qiáng)化機(jī)制的模型計(jì)算，及其在金屬間化合物增強(qiáng)Mg Li基復(fù)合材料中的實(shí)驗(yàn)驗(yàn)證，并結(jié)合模型探討了金屬間化合物增強(qiáng)MgLi基復(fù)合材料的斷裂模式及機(jī)制；最后，結(jié)合目前發(fā)展中所面臨的機(jī)遇和問(wèn)題，展望了超細(xì)顆粒增強(qiáng)MgLi基復(fù)合材料的未來(lái)方向及發(fā)展趨勢(shì)。

Abstract:: Particles reinforced Mg Li matrix composites, as an emerging super light structural metallic material, have been expected to be widely used in aerospace and civil fields, such as transportation, electronics packaging and sports industry for their high specific strength and specific stiffness, good damping and electromagnetic shielding properties. Firstly, the research status of ultrafine intermetallic compound particles reinforced MgLi matrix composites including applications, microstructures, mechanical properties and processing technologies were summarily related. Secondly, the progress 〖JP〗in the research of ultrafine intermetallic compound particles reinforced MgLi matrix 〖JP+1〗composites were expounded. Especially for the simulation model incorporating transition interface layer and strengthening mechanism, their test verification in ultrafine compound particles reiforced MgLi matrix composites were emphatically introduced. Finally, the prospects on the research direction and development tendency of ultrafine intermetallic compound particles reinforced MgLi matrix composites were expected based on the opportunities and problems in future.