0Cr17Ni7Al不锈钢热处理工艺研究
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摘要
研究了热处理工艺对0Cr17Ni7Al不锈钢洛氏硬度的影响。将0Cr17Ni7Al不锈钢调整处理后冷却到15℃以下进行深冷处理,并保证调整处理和深冷处理的时间间隔小于1 h,可以降低组织的奥氏体稳定化程度,使其转变为马氏体组织,从而提高材料的洛氏硬度。经固溶处理—调整处理—深冷处理—时效处理,可以明显提高0Cr17Ni7Al不锈钢的洛氏硬度,为44～47,符合稳定使用标准的要求。
The effect of heat treatment process on Rockwell hardness of 0 Cr17 Ni7 Al stainless steel was studied. After intermediate treatment, the parts of 0 Cr17 Ni7 Al stainless steel were cooled below 15 °C for cryogenic treatment with the interval between intermediate and cryogenic treatment less than 1 h,which can reduce the degree of austenite stabilization, maintain the martensite matrix structure, and improve the Rockwall hardness of the material. The Rockwall hardness of 0 Cr17 Ni7 Al stainless steel can be obviously improved to 44-47 by solution treatment-intermediate treatment-cryogenic treatmentaging treatment, which meets the requirement of the stably using standard.
The effect of heat treatment process on Rockwell hardness of 0 Cr17 Ni7 Al stainless steel was studied. After intermediate treatment, the parts of 0 Cr17 Ni7 Al stainless steel were cooled below 15 °C for cryogenic treatment with the interval between intermediate and cryogenic treatment less than 1 h,which can reduce the degree of austenite stabilization, maintain the martensite matrix structure, and improve the Rockwall hardness of the material. The Rockwall hardness of 0 Cr17 Ni7 Al stainless steel can be obviously improved to 44-47 by solution treatment-intermediate treatment-cryogenic treatmentaging treatment, which meets the requirement of the stably using standard.
引文
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[7]朱韬,王树奇,纪秀林.0Cr17Ni7Al沉淀硬化不锈钢的冲蚀磨损性能研究[J].钢铁钒钛,2013,34(5):69-74.
[8]俞宝罗,胡光立.合金钢与高温合金[M].北京:国防工业出版社,1981.
[9]丁文华,张绪江,陈玉章.不锈钢的热处理[M].北京:机械工业出版社,1983.
[2]宋为顺,梁剑雄,赵先存.我国高强不锈钢的发展现状及展望[J].不锈钢通览,2000(2):1-14.
[3]ZHAO X Y,ZHANG D W,MA X.Experimental study on mechanical properties of preloaded diskspring steel in medium temperature range[J].Advanced Materials Reach,2010(129/131):547-551.
[4]徐效谦.工艺因素对0Cr17Ni7Al弹簧钢丝性能的影响[J].金属制品,1995,21(5):17-23.
[5]严茂芳,刘大国.0Cr17Ni7Al高强度不锈弹簧钢丝热处理工艺制度的研究[J].仪表材料,1988,19(1):18-23.
[6]张文华.不锈钢及其热处理[M].沈阳:辽宁科学技术出版社,2012.
[7]朱韬,王树奇,纪秀林.0Cr17Ni7Al沉淀硬化不锈钢的冲蚀磨损性能研究[J].钢铁钒钛,2013,34(5):69-74.
[8]俞宝罗,胡光立.合金钢与高温合金[M].北京:国防工业出版社,1981.
[9]丁文华,张绪江,陈玉章.不锈钢的热处理[M].北京:机械工业出版社,1983.