摘要
采用渗流铸造工艺制备了钨丝增强ZrTiCuNiBeNb金属玻璃基复合材料,利用X射线衍射、扫描电镜、电子探针以及NanoIndenterⅡ纳米显微力学探针考察了复合材料的界面结构以及界面微区力学性能。结果表明:钨丝增强ZrTiCuNiBeNb金属玻璃基复合材料界面仅由单纯的界面溶解和扩散形成,并未发生界面反应,该界面应属于金属基复合材料的Ⅱ类界面;并且溶解和扩散的存在使界面微区的硬度和弹性模量高于基体,界面结合较强,没有沿界面的裂纹扩展。
W fiber reinforced ZrTiCuNiBeNb metallic-glass matrix composite was prepared by melt infiltration casting. The interface structure and mechanical properties were analyzed by using XRD, SEM, EPMA and Nano Indenter MPM(mechanical properties micro-probe). The results illustrate that the interface of ZrTiCuNiBeNb metallic-glass matrix composite is a simply diffusion-dissolution layer only and there is no interfacial reactions between W fibers and matrix. The composite is included as a class Ⅱ system according to the theory of interfaces in metal matrix composites. The hardness and elastic modulus of the interface are higher than those of the matrix. The interfacial bond is very strong and there isn't propagation of the cracks along the interface.
出处
《中国有色金属学报》
EI
CAS
CSCD
北大核心
2004年第10期1632-1636,共5页
The Chinese Journal of Nonferrous Metals
基金
国家"八六三"计划资助项目(2001AA331010)
国家重点基础研究发展规划资助项目(G200067201 3)
国家自然科学基金资助项目(50071005
50171006)
北京市重大科技资助项目(H020420030320)
关键词
渗流铸造
金属玻璃
复合材料
界面结构
melt infiltration casting
metallic glass
composite
interface structure
