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Modeling and Simulation of the Microstructure Evolution of 42CrMo4 Steel During Electrochemical Machining

机译：42CrMo4钢电化学加工过程中组织演变的建模与仿真

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摘要

Machining independently of mechanical material properties like hardness or high temperature strength is one mayor advantage of the electrochemical machining process (ECM). Additionally, high material removal rates can be achieved in combination with best surface integrities. Nevertheless, one limiting factor in the resulting surface integrity can be a significantly varying dissolution rate of material phases in a multi phase material during ECM. These differences in the dissolution rates determine the surface topography as well as the achievable surface roughness. However, this behavior cannot be forecasted up to now. For that reason, this paper presents a model for the prediction of the microstructure evolution as well as simulation results regarding the influence of the electrochemical machining process on resulting surface topography for the ferritic perlitic steel 42CrMo4 in a passivating electrolyte system. With the help of the model, the evolution of surface topography can be predicted and will be analyzed for different process parameters and various initial microstructures.
机译：独立于机械材料特性（例如硬度或高温强度）进行加工是电化学加工过程（ECM）的一项重要优势。另外，结合最佳的表面完整性可以实现较高的材料去除率。然而，导致的表面完整性的一个限制因素可能是ECM期间多相材料中材料相的溶解速率显着变化。溶解速率的这些差异决定了表面形貌以及可达到的表面粗糙度。但是，此行为到目前为止尚无法预测。因此，本文提出了一个模型，用于预测钝化电解质体系中铁素体蠕变钢42CrMo4的微观组织演变以及有关电化学加工工艺对所得表面形貌的影响的模拟结果。借助该模型，可以预测表面形貌的演变，并将针对不同的工艺参数和各种初始微观结构进行分析。

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