1Cr11MoNiW1VNbN钢气体渗氮方法研究
发布时间：2018-07-22 15:55
【摘要】：研究了一种对1Cr11Mo Ni W1VNb N钢进行气体渗氮的工艺方法,采用较高温度在奥氏体区渗氮,通过多次试验摸索出一种较好的工艺方法,并用显微镜、硬度计等对渗氮后试样的渗层深度、裂纹情况、表面硬度、阶梯硬度等进行了测试分析。结果表明:采用温度(625±5)℃渗氮、(640±5)℃退氮的三段渗氮方法,可以满足1Cr11Mo Ni W1VNb N钢渗层深度≥0.25 mm、表面维氏硬度739~840 HV的技术要求。
[Abstract]:A method for nitriding 1Cr11Mo Ni W 1VNB N steel by gas nitriding was studied. A better method was found out by several experiments in austenite region at higher temperature. The depth of nitriding layer, crack, surface hardness and step hardness of nitrided samples were measured and analyzed by hardness meter. The results show that the method of nitriding at (625 卤5) 鈩，
本文编号：2137976
[Abstract]:A method for nitriding 1Cr11Mo Ni W 1VNB N steel by gas nitriding was studied. A better method was found out by several experiments in austenite region at higher temperature. The depth of nitriding layer, crack, surface hardness and step hardness of nitrided samples were measured and analyzed by hardness meter. The results show that the method of nitriding at (625 卤5) 鈩，
本文编号：2137976
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