ZChSnSb11-6/20钢复合材料不同结合界面结合强度仿真与试验

摘要/Abstract

摘要： 针对巴氏合金与钢体组成的复合材料，建立了不同结合界面(不同的生产工艺条件)下工件结合强度理论计算模型。以微小单元作为模型构建的基础，利用COMSOL Multiphysics软件对其结合界面进行了有限元应力场仿真模拟，得到了不同生产工艺条件下界面应力分布情况。仿真结果表明：三种结合界面下提出的理论计算公式与模拟计算值之间的相对误差值在15%内。采用电弧喷涂技术制备了不同结合界面和不同表面粗糙度的ZChSnSb11-6/20钢复合材料，得到了不同结合界面许用结合强度。试验结果表明：对于同一表面粗糙度，其结合强度随结合界面接触面积的增大而增大，圆弧面（B型）和截球面（C型）两种结合界面的结合强度值较接近，差值在2MPa之内；光面（A型）结合界面的结合强度最小，约为B型、C型两种结合界面结合强度的60%。通过对比分析，对所构建模型进行了模型评价，得到了模型评价对照表。

关键词: ZChSnSb11-6钢, 复合材料, 结合界面, 界面影响因子, 结合强度

Abstract: The theoretical calculation models of different binding interfaces(under different processing conditions for production) on working binding strength were established based on the composite of steel body and Babbitt layer. The simulations of stress fields for different binding interfaces were carried out by COMSOL Multiphysics software based on small units as buildable models. The interfacial stress distribution of different processing conditions for production was obtained. Simulation results reveals the relative errors of three kind of binding interfaces between theoretical formula and simulation were within the range of 15%. ZChSnSb11-6/20 steel composites with different binding interfaces and different roughnesses were prepared by arc spraying technology. And the permissible binding strengths of different binding interfaces were obtained. Experimental results reveal the binding strength increases with contact area of binding interface increased for the same roughness. The binding strength of arc-binding interface(type B) binding interface was closer to that of segment of spherical interface(type C) and the difference is within 2 MPa. However, the binding strength is the minimum for smooth interface(type A) binding interface. And the difference is about 60% compared with type B or type C binding interface. Then the constructed model was evaluated by comparative analysis and the table for model evaluation was obtained.

Key words: ZChSnSb11-6 steel, composite material, binding interface, interfacial impact factor, binding strength

中图分类号:

王尧, 项丹, 孟文俊, . ZChSnSb11-6/20钢复合材料不同结合界面结合强度仿真与试验[J]. 中国机械工程.

WANG Yao, XIANG Dan, MENG Wenjun, . Simulation and Experiments of Binding Strength of Different Binding Interfaces on ZChSnSb11-6/20 Steel Composites[J]. China Mechanical Engineering.

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