航空不锈钢1Cr11Ni2W2MoV精密薄层气体氮碳共渗

doi:10.13251/j.issn.0254-6051.2023.04.042

金属热处理 ›› 2023, Vol. 48 ›› Issue (4): 273-276.DOI: 10.13251/j.issn.0254-6051.2023.04.042

航空不锈钢1Cr11Ni2W2MoV精密薄层气体氮碳共渗

王新宇¹, 焦清洋¹, 李世键¹, 王克喜¹, 颜廷宇¹, 王宇²

1.沈阳飞机工业集团有限公司, 辽宁沈阳 110034;
2.空军装备部驻沈阳地区军事代表局驻沈阳地区第一军事代表室, 辽宁沈阳 110034

收稿日期:2022-09-29 修回日期:2022-12-20 发布日期:2023-05-27
作者简介:王新宇(1985—)，男，高级工程师，硕士，主要研究方向为金属材料热处理，E-mail:wxyjoe@126.com

Gas nitrocarburizing of precision thin infiltration layer for aviation stainless steel 1Cr11Ni2W2MoV

Wang Xinyu¹, Jiao Qingyang¹, Li Shijian¹, Wang Kexi¹, Yan Tingyu¹, Wang Yu²

1. Shenyang Aircraft Corporation, Shenyang Liaoning 110034, China;
2. The First Military Representative Office in Shenyang of the Military Representative Office of the Air Force Equipment Department, Shenyang Liaoning 110034, China

Received:2022-09-29 Revised:2022-12-20 Published:2023-05-27

摘要/Abstract

摘要： 对航空不锈钢1Cr11Ni2W2MoV进行气体氮碳共渗热处理,以获得深度为0.02~0.03 mm的精密薄层,并对不同工艺参数下的渗层深度、硬度和脆性、组织进行了检测和分析。结果表明,在480~560 ℃共渗温度下,通过控制保温时间,均可得到深度0.02~0.03 mm,硬度≥800 HV0.1的精密渗层。温度越高,保温时间越长,渗层厚度和硬度越大。从工艺控制稳定性和生产效率等方面考虑,520 ℃温度下渗入速率均匀易控,更适合零件的实际生产。所得渗层脆性达到HB 5022—1994中1~2级的要求,组织符合2级及以上要求。

关键词: 氮碳共渗, 马氏体不锈钢, 精密渗层, 硬度, 层深

Abstract: Aviation stainless steel 1Cr11Ni2W2MoV was gas nitrocarburized to obtain a precision thin infiltrated layer with a depth of 0.02-0.03 mm, and the depth, hardness, brittleness and microstructure of the infiltrated layer under different process parameters were tested and analyzed. The results show that at the nitrocarburizing temperature of 480-560 ℃, by controlling the holding time, precision thin layers with depth of 0.02-0.03 mm and hardness≥800 HV0.1 can be obtained. The higher the temperature, the longer the holding time, and the greater the thickness and hardness of the infiltrated layer. Considering the process control stability and production efficiency, the infiltration rate at 520 ℃ is uniform and easy to control, which is more suitable for the actual production of the parts. The brittleness of the infiltrated layer meets the requirements of grade 1-2 in the standard HB 5022—1994, and the microstructure meets the requirements of grade 2 and above.

Key words: nitrocarburizing, martensitic stainless steel, precise infiltration layer, hardness, layer depth

中图分类号:

TG156.82

王新宇, 焦清洋, 李世键, 王克喜, 颜廷宇, 王宇. 航空不锈钢1Cr11Ni2W2MoV精密薄层气体氮碳共渗[J]. 金属热处理, 2023, 48(4): 273-276.

Wang Xinyu, Jiao Qingyang, Li Shijian, Wang Kexi, Yan Tingyu, Wang Yu. Gas nitrocarburizing of precision thin infiltration layer for aviation stainless steel 1Cr11Ni2W2MoV[J]. Heat Treatment of Metals, 2023, 48(4): 273-276.

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航空不锈钢1Cr11Ni2W2MoV精密薄层气体氮碳共渗

Gas nitrocarburizing of precision thin infiltration layer for aviation stainless steel 1Cr11Ni2W2MoV

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