White layer which is formed on the contact surface between a wire and a die depends on deformation conditions. The aim herein is to obtain the model for the assessment of white layer thickness which is formed in the combined deformational processing by drawing with torsion in high‐carbon 0.7%C steel wire. Finite‐element modelling is used to predict the thickness of the white layer. A series of experiments in the combined deformational processing of high‐carbon steel wire is conducted at different deformational conditions. Using the quantitative coefficient of anisotropy that characterizes the shape of grains, the thickness of white layer is measured. It is found that the theoretical prediction of white layer thickness matches with experimental data. In addition, the mechanical properties of the processed carbon steel wire are studied by the tensile test.

中文翻译：

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高碳钢丝扭转变形联合加工中白层厚度的建模

在金属丝和金属模之间的接触表面上形成的白色层取决于变形条件。本文的目的是获得一种评估白层厚度的模型，该模型是通过在高碳0.7％C钢丝中通过扭转拉伸而在联合变形处理中形成的。有限元建模用于预测白色层的厚度。在不同的变形条件下，进行了高碳钢丝的联合变形处理的一系列实验。使用表征晶粒形状的定量各向异性系数，可以测量白色层的厚度。发现白层厚度的理论预测与实验数据相吻合。此外，