块状非晶合金及其复合材料研究进展

来源期刊：金属学报2010年第11期

论文作者：胡壮麒 张海峰

文章页码：1391 - 1421

关键词：块状非晶合金； 非晶基复合材料； 凝固控制

Key words：bulk metallic glass； bulk metallic glass matrix composite； solidification controlling

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.

Abstract: 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,especially introduced our recent progress referred to Ti-,Ni-,Zr-and Mg-based 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 mm, 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.