摘要
研究5%~7%（体积分数,下同）ZrO2颗粒增强Zr55Cu30Al10Ni5非晶复合材料的微观组织和压缩断裂行为。非晶基体的断裂形貌主要以脉状形貌为主,而复合材料的断口形貌中除了脉状形貌外还有平滑区存在。当ZrO2颗粒的含量达到7%时,其断裂强度也由基体的1716MPa增加到2138MPa。但是由于ZrO2颗粒的添加在基体中产生了Cu10Zr7和CuZr脆性相,因而复合材料没有产生明显的塑性。
The microstructure and fracture behavior of Zr55Cu30Al10Ni5 monolithic glass and Zr55Cu30Al10Ni5 reinforced with 5%-7% ZrO2 particles composites have been studied.Vein-like pattern is the main fracture morphology of the matrix,while the smooth regions can be observed on the composites fracture surface besides vein-like pattern.The fracture strength increases from 1716 MPa to 2138 MPa after adding 7vol% ZrO2 particles with average particle size of 1 μm into the matrix,but the composites show no visible plasticity due to formation of Cu10Zr7 and CuZr phases in the matrix.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2011年第5期765-768,共4页
Rare Metal Materials and Engineering
基金
the National Science Foundation of China(50771063)
关键词
大块非晶
复合材料
压缩断裂形貌
bulk metallic glasses
composites
compression fracture morphology
