ISSN:1003-8620

CN:42-1243/TF

主管:中信泰富特钢集团股份有限公司

主办:大冶特殊钢有限公司

特殊钢 ›› 2013, Vol. 34 ›› Issue (2): 35-37.

• 工艺技术 • 上一篇    下一篇

45钢低温电解渗硫表面摩擦性能的研究

刘瑶1,张红霞2,朱远志1   

  1. 1武汉科技大学材料与冶金学院材料加工工程系,武汉 430081 ;
    2湖北汽车工业学院材料工程系,十堰 442002
  • 收稿日期:2012-10-10 出版日期:2013-04-01 发布日期:2022-10-08
  • 通讯作者: 朱远志
  • 作者简介:刘瑶(1988-),女,硕士研究生,钢材表面改性研究

A Study on Friction and Wear Behavior of Low Temperature Electrolytic Sulphurizing Surface of 0.45C Steel<

Liu Yao1,Zhang Hongxia2, Zhu Yuanzhi1   

  1. 1 Material Engineering Department, College of Materials and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081 ;
    2 Department of Material Engineering, Hubei Automotive Industries Institute, Shiyan 442002 ;
  • Received:2012-10-10 Published:2013-04-01 Online:2022-10-08
  • Contact: Zhu Yuanzhi

摘要: 采用75%KSCN+25%NaSCN+0.9%K3Fe(CN)6+0.1%K4Fe(CN)6+2.5%NH4SCN的盐浴,45钢为正极,高铬不锈钢为负极,190℃±5℃,1 V电压,20 min低温电解表面渗硫方法,在45钢表面形成10 μm FeS渗层,并且用M-2000型磨损试验机,金相技术、SEM及XRD等分析仪考察其摩擦性能。结果表明,采用低温电解工艺方法可以在45钢表面制备质量较好的FeS层,具有明显的减磨作用;干摩擦条件下,渗硫表面的摩擦系数是未渗硫表面的60%,在油润滑条件下,渗硫表面的摩擦系数为未渗硫表面的70%;在一定载荷范围内,随载荷的增大,FeS层减磨作用增加。

关键词: 45钢, 低温电解渗硫, FeS渗硫层, 减磨性

Abstract: The 10 μm FeS sulphurizing layer forms on surface of 0.45 C steel by low temperature electrolytic sulphurizing process in salt bath of 75% KSCN +25% NaSCN + 0.9% K3Fe( CN)6 +0.1% K4Fe( CN)6 + 2.5% NH4SCN with positive electrode 0.45C steel and negative electrode high chromium stainless steel, 1 volt at 190 ℃ ±5 ℃ for 20 min, and its friction and wear behavior is studied by M-2000 friction and wear test machine, optical microscope, scanning electron microscope and X-ray diffractometer. Results show that better quality FeS sulphurizing layer surface of 0.45 C steel could be get by low-temperature electrolytic sulphurizing process and the FeS layer can obviously reduce the friction and wear of 0. 5C steel; in condition of dry friction the friction factor of sulphurizing surface is 60% of that of non-sulphurizing surface and in condition of oil lubrication the friction factor of sulphurizing surface is 70% of that of non-sulphurizing surface; and in definite load range with increasing the load the reducing friction and wear effect of FeS layer increases.

Key words:  , 0. 45C Steel, Low-Temperature Electrolytic Sulphurizing, FeS Sulphurizing Layer, Reduction of Friction and Wear