块状非晶合金及其复合材料研究进展  

RECENT PROGRESS IN THE AREA OF BULK AMORPHOUS ALLOYS AND COMPOSITES

作　　者：胡壮麒[1] 张海峰[1] 

机构地区：[1]中国科学院金属研究所沈阳材料科学国家(联合)实验室,沈阳110016

出　　处：《金属学报》2010年第11期1391-1421,共31页Acta Metallurgica Sinica

基　　金：国家重点基础研究发展计划项目2006C3605201;国家杰出青年基金项目50825402;国家自然科学基金50731005资助~~

摘　　要：本文结合本研究组近几年的部分研究结果,围绕制备-结构-性能之间的相互关系和内在机制,通过调控合金熔体加热和凝固过程以及复合材料界面结构的设计,制备出几种结构可控和性能优异的非晶合金及非晶复合材料.其中(Ti,Zr)基非晶块体材料尺寸在50 mm以上,非晶复合材料特别是结构可控的晶态/非晶态双连续相复合材料具有良好的力学性能.研究工作涉及锆基、镁基、镍基和钛基等主要合金体系及其复合材料,在综合分析和论述的基础上,力图清晰地认识和理解制备-结构-性能之间的内在关系.非晶合金的大量应用一直是待攻克的重要目标,期望颇具特色的非晶复合材料能得到实际应用.Bulk metallic glass （BMG） and its composite （BMGC） are new members in the area of materials science and engineering. In this paper, we simply reviewed the development history, es- pecially introduced our recent progress referred to Ti-, Ni-, Zr- and Mgbased BMGs and BMGCs. The study of the microstructures of BMGs prepared by controlling the solidification conditions indicates that the microstructure of BMG is flexible. Several factors including the casting temperature, the mold temperature and the mold material etc. influencing on the glass formation, microstructures and properties were studied. The relationship among processes, structures and properties of BMGs is furthermore illustrated. Some BMGs and BMGCs were prepared by mediating the solidification conditions and designing the novel composite structures, of which the size of Ti-based BMG reaches 50 ram, and crystal/BMG bi-continuous phase composites exhibit good properties. Investigations reveal that the application of these BMG and BMGCs will be expected in the near future.

关 键 词：块状非晶合金 非晶基复合材料 凝固控制 

分 类 号：TG139.8[一般工业技术—材料科学与工程]