The aim of the work is to show both the similarities and differences in the formation of deformation-induced roughness in contact compression in the presence of oil and the problem of free surface roughing during uniaxial stretching in a plastic area. The relationships between changes in the roughness are caused by the deformation of the sample and the viscosity of oil at the contact area. It has been shown that normal contact loading with the presence of oil initially leads to an increase in surface roughness, then to its smoothening. The results of the experimental research have been compared with numerical simulation made using FSI (Fluid Structure Interaction) and ABAQUS systems. Using finite element calculations, it was possible to explain the phenomenon of roughness formation on the surface of a smooth steel sample. The changes in the structure of the smooth surface resulting from compression in the presence of oil are caused by the rotation and deformation of surface grains. The roughness of this structure is dependent on the viscosity of oil: the more viscous the liquid is, the rougher texture is formed.

这项工作的目的是展示在有油的情况下接触压缩中形变引起的粗糙度的形成的相似性和差异，以及在塑料区域中单轴拉伸过程中自由表面粗糙化的问题。粗糙度变化之间的关系是由样品的变形和接触区域的油的粘度引起的。已经表明，在有油的情况下正常的接触载荷首先导致表面粗糙度的增加，然后使其平滑。实验研究的结果已与使用FSI（流体结构相互作用）和ABAQUS系统进行的数值模拟进行了比较。使用有限元计算，可以解释光滑钢样品表面上形成粗糙度的现象。在存在油的情况下压缩产生的光滑表面结构变化是由表面晶粒的旋转和变形引起的。这种结构的粗糙度取决于油的粘度：液体越粘，形成的质地就越粗糙。