Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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A Study on the Plasma Nitriding Application for the Durability Improvement of the Exhaust Decoupler

배기계 디커플러의 내구 향상을 위한 플라즈마 질화에 관한 연구

  • Hur, Deog-Jae (Product Design Technology Center, Institute for Advanced Engineering) ;
  • Kim, Sang-Sik (Plasma Technology Center, Institute for Advanced Engineering) ;
  • Chung, Tae-Jin (Department of Mechanical Design Engineering, Kunsan National University) ;
  • Kim, Do-Hoon (SDB Bellows Co., Ltd., R&D Center)
  • 허덕재 (고등기술연구원 제품기술연구센터) ;
  • 김상식 (고등기술연구원 플라즈마연구센터) ;
  • 정태진 (군산대학교 기계공학과) ;
  • 김도훈 ((주)SDB R&D센터)
  • Published : 2006.05.01
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Abstract

This paper described the process of improving durability performance of the exhaust decoupler by the plasma nitriding. The properties of plasma nitriding treatment of AIS1304 stainless steel were tested using specimens before applying plasma nitriding to a mesh ring. In order to analyses the effect of plasma nitriding treatment on the mechanical properties, SEM(Scanning Electron Microscopes), roughness and hardness tester were used. Based on specimen plasma nitriding, we could find appropriate condition for application to the mesh ring of decoupler. To confirm the improved durability performance, we compared the number of cycles, which reaches to fracture, of the nitrided decoupler and that of the unnitrided decoupler by the bending cyclic test. In this test, the durability and wear resistance of the mesh ring are significantly improved by plasma nitriding treatment.

Keywords

References

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