Journal of South China University of Technology (Natural Science Edition) ›› 2007, Vol. 35 ›› Issue (3): 28-32.

• Mechanical Engineering • Previous Articles     Next Articles

Ionic Bombardment of Austenitic Stainless Steel by Nitrogen and Chromium Ion Immersion

Xiong Ling  Hu Yong-jun  Xu Jian  Meng Ji-long   

  1. South China Univ. of Tech. , Guangzhou 510640 , Guangdong , China
  • Received:2006-11-08 Online:2007-03-25 Published:2007-03-25
  • Contact: 熊玲(1968-)，女，在职博士生，讲师，主要从事材料表面处理工程研究。 E-mail:lxiong@scut. edu.cn
  • About author:熊玲(1968-)，女，在职博士生，讲师，主要从事材料表面处理工程研究。
  • Supported by:

    广东省工业攻关计划资助项目(2005A1120l002 )

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Abstract:

In this paper , chromium ion was introduced in the conventional ion-nitriding stove to ca盯y out the ionic bombardment of stainless steel by nitrogen and chromium ion immersion. An optical microscopy , an abrasion test device and an electrochemistry workstation were then adopted to investigate the microstructure , wear resistance and corrosion resistance of the samples in different processing conditions. The results show that the wear resistance of the stainless steel with ionic bombardment processing is 2 - 5 times that of the untreated sample , and that the bom-barded stainless steel is of a liule reduction in corrosion resistance , as compared with the original stainless steel.However , as compared with the traditional ion-nitriding stainless steel , the corrosion resistance is greatly improved.

Key words: stainless steel, chromium ion, bombardment processing, wear resistance, corrosion resistance