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Influence of friction on the residual morphology, the penetration load and the residual stress distribution of a Zr-based bulk metallic glass

机译:摩擦对Zr基块状金属玻璃残余形态,穿透载荷和残余应力分布的影响

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In this paper, friction between the Cube-Corner indenter and the sample surface of a Zr-based bulk metallic glass (BMG) was analyzed and discussed by the experimental method, the theoretical method and the finite element simulation. Linear residua are observed on the surface of the indenter for the first time, which gives the direct evidence that strong interaction processes exist between the indenter surface and the sample surface because of strong friction and local high contact press. A simplified model was developed to correct the penetration load with the consideration of friction. Effects of friction on the penetration load-depth curves, plastic flow, surface deformation and residual stress distribution of the sample with different friction coefficients were investigated by the finite element simulation.
机译:本文通过实验方法,理论方法和有限元模拟分析和讨论了立方角压头与Zr基块状金属玻璃(BMG)样品表面之间的摩擦。首次在压头表面观察到线性残留物,这直接证明了由于强烈的摩擦力和局部高接触压力,压头表面与样品表面之间存在强烈的相互作用过程。开发了一个简化模型以考虑摩擦力来校正穿透载荷。通过有限元模拟,研究了摩擦力对不同摩擦系数试样的穿透载荷-深度曲线,塑性流动,表面变形和残余应力分布的影响。

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