A Method for Observing the Tridimensional Morphology of Sulfide Inclusions by Non-aqueous Solution Electrolytic Etching
A Method for Observing the Tridimensional Morphology of Sulfide Inclusions by Non-aqueous Solution Electrolytic Etching
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非水溶液电解刻蚀观察硫化物夹杂物三维形貌的方法
DOI：
10.1007/s42243-018-0142-z
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发表时间：
2019
影响因子：
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通讯作者：
Jian-xun Fu
中科院分区：
文献类型：
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作者：
Dong Zhang;Yan-xin Wu;Jian-bo Xie;Ping Shen;Jian-xun Fu
为了通过控制钢中的硫化物来改善钢的机械性能，需要对硫化物进行三维研究。介绍了一种研究硫化物三维形貌的方法，包括原理和装置。该方法适用于齿轮钢、易切削钢、非调质钢、回火钢（wS≥ 0.02wt.%），以16 MnCrS 5钢为试验材料，研究了电流密度、时间和温度对硫化物夹杂暴露程度的影响。通过实验发现，硫钢电解蚀刻的最佳参数如下：电流密度37.5-52.5 mA/cm 2;时间30-35 min;温度-10至0 °C。在此条件下，含硫钢中硫化物夹杂物的三维形貌可以有效地暴露出来。
Three-dimensional investigation of sulfides is required in order to improve the mechanical properties of steel by controlling the sulfides in the steel. A method including its principles and device is introduced for the investigation of three-dimensional morphology of sulfides. The method is suitable for gear steel, free cutting steel, non-quenched steel, tempered steel (wS≥ 0.02 wt.%), etc. The influences of current density, time, and temperature on the exposure degree of sulfide inclusions were investigated by using 16MnCrS5 steel. The best parameters of electrolytic etching of sulfur steel, as found by experimentation, are as follows: current density, 37.5–52.5 mA/cm2; time, 30–35 min; and temperature, − 10 to 0 °C. Under these conditions, the three-dimensional morphology of sulfide inclusions in sulfur-bearing steel can be exposed effectively.