温度对W丝/Zr基非晶合金复合材料动态力学行为的影响

doi:10. 13228/j. boyuan. issn1005- 8192. 2018049

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摘要利用分离式Hopkinson压杆(SHPB)、S4800场发射扫描电镜等测试分析方法，系统研究了不同温度下(-50、50、200℃)W丝/Zr基非晶合金复合材料的轴向压缩力学性能和断裂特征。结果表明：复合材料表现出明显的高温软化效应；温度降低，复合材料断裂以W丝撕裂为主；温度升高，非晶相中剪切带内部局部升温造成的粘性流动增加，两相界面劈裂所占的比例增加。

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	刘超超
	薛云飞
	王本鹏
	张扬
	李亚峰
	王倩
	刘冬
	贾立颖
	周小文
	朱代漫
	黄可淼
	刘荣明
	李炳山

关键词 ：非晶复合材料, 力学性能, 断裂特征

Abstract：The effects of temperatures (-50, 50, and 200℃) on the axial compression mechanical behaviors and fracture feature of W fiber/Zr- based amorphous matrix composites were investigated by means of Split Hopkinson Pressure Bar (SHPB) and S- 4800 scanning electron microscopy. The experimental results showed that the composites exhibited obvious high temperature softening behaviors. With the temperature decreasing, the fracture of composite was dominated by tungsten fibers tearing. With increasing temperature, the viscous flow as a consequence of local adiabatic heating in the shear bands region increases dramatically, and the proportion of the splitting between phase interfaces increases among fracture.

Key words： Amorphous matrix composite Mechanical behaviors Fracture feature

收稿日期: 2018-06-20 出版日期: 2018-11-06

通讯作者: 刘荣明 E-mail: liurongming@magmat.com

引用本文:

刘超超，薛云飞，王本鹏，张扬李亚峰，王倩，刘冬，贾立颖，周小文，朱代漫，黄可淼，刘荣明，李炳山. 温度对W丝/Zr基非晶合金复合材料动态力学行为的影响[J]. , 2018, 25(5): 37-41.
LIU Chao- chao,XUE Yun- fei,WANG Ben- peng,ZHANG Yang,LI Ya- feng,WANG Qian,LIU Dong,JIA Li- ying,ZHOU Xiao- wen,ZHU Dai- man,HUANG Ke- miao,LIU Rong- ming,LI Bing- shan. Effects of temperature on the dynamic mechanicalbehaviors of tungsten fiber reinforced W/Zr- based metallic glass composites. , 2018, 25(5): 37-41.

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