| 奥氏体不锈钢稀土催渗离子渗氮工艺研究 |
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| 引用本文： | 姜卓,王丽莲.奥氏体不锈钢稀土催渗离子渗氮工艺研究[J].热处理,2012,27(3):54-57. |
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| 作者姓名： | 姜卓 王丽莲 |
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| 作者单位： | 上海市机械制造工艺研究所有限公司,上海200070;上海金属材料改性工程技术研究中心,上海 200070 |
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| 摘 要： | 对304、316L奥氏体不锈钢采用不同氮一氢比的气氛，在不同温度和不同保温时间进行了离子渗氮和稀土催渗离子渗氮。结果表明，经580℃在氮一氢比为1：3的气氛中稀土催渗离子渗氮9h，304和316L钢的渗层深度分别为0．12mm和0．112mm，表面硬度达1000HV0．1左右，与常规离子渗氮工艺相比，渗氮时间缩短了1h。
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| 关 键 词： | 奥氏体不锈铜 稀土催渗剂 离子渗氮 |
RE-catalyzed Ionitriding for Austenitic Stainless Steels |
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| JIANG Zhuo
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WANG Li-lian.RE-catalyzed Ionitriding for Austenitic Stainless Steels[J].Heat Treatment,2012,27(3):54-57. |
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| Authors: | JIANG Zhuo WANG Li-lian |
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| Affiliation: | 1,2) (1.Shanghai Machine Building Technology Institute Co.,Ltd.,Shanghai 200070,China; 2.Shanghai Engineering Research Center of Materials Modification,Shanghai 200070,China) |
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| Abstract: | 304 and 316L austenitic stainless steels were ionitrided with or without RE-catalyzer in dilferent nitrogen-hydrogen ratios of atmosphere at different temperatures for different times,respectively.The results show that the case depths after ionitriding with RE-catalyzer at 580℃for 9 h in an atmosphere of 1 part of nitrogen plus 3 parts of hydrogen are 0.12 mm for 304 steel and 0.112 mm for 316L steel,and the surface hardness is high as 1000 HV0.1.Furthermore,duration of the RE-catalyzed ionitriding is 1 h less than that of conventional ionitriding to obtain the same case depth. |
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| Keywords: | austenitic stainless steel RE-catalyzer ionitriding |
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