Fractographic interpretation of the fatigue crack propagation behavior of polystyrene and polystyrene/polyethylene blends

被引：6

作者：

Bureau, MN

Denault, J

Dickson, JI

机构：

[1] Natl Res Council Canada, Inst Ind Mat, Boucherville, PQ J4B 6Y4, Canada

[2] Ecole Polytech, Dept Genie Phys & Genie Mat, Montreal, PQ H3C 3A7, Canada

来源：

JOURNAL OF MATERIALS SCIENCE LETTERS | 2001年 / 20卷 / 20期

基金：

加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1023/A:1012826328422

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Fractographic interpretation of the fatigue crack propagation behavior of polystyrene (PS) and polystyrene/polyethylene (PE) blends was reported. Large dimples were formed in front of the crack tip with radial growth from the point they initiate. Results suggested that the absence of fatigue striations at high fatigue crack growth rates (FCGR) in the PS/PE blends with a PS matrix was the result of the presence of the PE particles which facilitated the formation of dimples in PS matrix.

引用

页码：1901 / 1904

页数：4

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