ZChSnSb11-6/20钢复合材料结合界面影响因子研究

Investigation of Impact Factor of Binding Interface on ZChSnSb11-6/20 steel Composites

摘要:

针对巴氏合金与钢体组成的复合材料，提出并推导了结合界面影响因子λ计算公式。采用电弧喷涂技术制备了有无镀锡层工艺处理ZChSnSb11-6/20钢复合材料，研究了材料的力学性能，得到了结合界面影响因子λ关于巴氏合金比重ξ的数学关系式。结果表明：无镀锡层处理的复合材料结合界面影响因子λ1随巴氏合金比重ξ的增加而单调递减；而有镀锡层处理的复合材料λ2与ξ的函数关系存在拐点ξ=0.597，即巴氏合金层存在最佳厚度，使巴氏合金与20钢的结合达到一种平衡，结合性能最佳。经验证，镀锡层工艺处理增强了复合材料的界面结合性能，而且当ξ=0.6时，其界面结合力最大。

Abstract:

The formula to calculate the impact factor of binding interface (λ) was proposed and derived based on the composite of steel body and Babbitt layer. ZChSnSb11-6/20 steel composites with or without tin layer were prepared by arc spraying technology. And the mechanical properties were investigated. Then the mathematical relationship between the impact factor of binding interface (λ) and proportion of Babbitt (ξ) was obtained. Results revealed that the impact factor of binding interface of composites without tinning (λ1) decreased monotonically with the proportion of Babbitt (ξ). However, for the composites with tinning, the function of λ2 and ξ exits an inflection point which is ξ=0.597. This inflection point suggested that there was an optimal thickness of Babbitt layer, and the best binding between 20 steel and Babbitt layer was obtained. It was validated that the process of tin layer enhanced the interfacial binding properties of composites, and the binding force of interface was maximum when ξ was 0.6.