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| 摘要: |
| 采用甲酰胺-乙醇胺电解液体系，对Q235钢进行等离子体电解碳氮共渗处理，通过对处理的试样进行XRD分析，确定了碳氮共渗层形成的临界条件，分析了各种工艺参数下处理试样的相组成变化，给出了渗透层的形貌，测量了渗透层的显微硬度。试验结果表明：在特定的电解液体系下，不同的工作电压，所获得渗透层的相组成不同；渗透层的相组成包括：α-Fe、Fe3C、Fe5C2、ε-Fe2-3N、γ-Fe；在170V工作电压下，处理0．5min即可获得50min的渗透层，渗透层的显微硬度最大可达720HV0.1。 |
| 关键词: 等离子体电解 碳氮共渗 相组成 显微硬度 |
| DOI： |
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| Research on the Formation Conditions of Plasma Electrolytic Carbonitriding in Liquid |
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LI Jie 1, SHEN De-jiu 1, WANG Yu-lin2, LIU Kai2
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| Abstract: |
| Q235 steel was treated by Plasma electrolytic carbonitriding technique in formamide- ethanolamine solution. The formation conditions of carbonitriding were determined through XRD analysis, the phase compositions of samples treated under different conditions were studied. The diffused was layer was observed by SEM and its micro-hardness was measured .The results showed that the compositions of diffused layer were different under different voltages; The diffused layer was mostly constituted of α-Fe, Fe3C,Fe5C2, ε－Fe2-3N, and γ-Fe; The diffused layer of 50μm can be obtained under 150 V, 0.5 min and its maximum micro-hardness can reach 720 HV0.1. |
| Key words: plasma electrolyte carbonitriding phase composition micro-hardness |
