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Effects of Impact Angle on Erosive Resistance of SiC/Steel Matrix Surface Composites
Author(s): ZHOU Yong-xin, ZHAO Xi-cheng, L(U) Zhen-lin
Pages: 495-
497,500
Year: 2007
Issue:
5
Journal: FOUNDRY
Keyword: 冲蚀角度; SiC/钢基表面复合材料; 冲蚀磨损性能;
Abstract: 采用负压铸渗工艺制备SiC/钢基表面复合材料,研究不同冲击角度对其冲蚀磨损性能的影响及其冲蚀磨损机理.结果表明,复合材料的冲蚀磨损率随冲击角α的增大先增大后减小,60°时最大;SiC/钢基表面复合材料的相对耐冲蚀性在45°时最大,为Q235钢的3.82倍.随着冲击角度的变化,切削作用和冲击作用对基体的支撑效应和颗粒对基体的阴影效应产生很大的影响,从而影响复合材料的冲蚀磨损性能.
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