Journal of Welding and Joining

The Korean Welding and Joining Society (대한용접접합학회)
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A Study on the Abrasive Wear Properties of the PTA Overlay Layers using the Super Alloy Powder

초내열합금분말에 의한 PTA 오버레이부의 연삭 마모 특성 연구

  • 김영식 (한국해양대학교 기계소재공학부) ;
  • 최영국 ((주) 종합 폴스타) ;
  • 임창훈 (한국해양대학교 대학원) ;
  • 김종도 (한국해양대학교 기관시스템공학부)
  • Published : 2009.06.30
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Abstract

The Plasma Transferred Arc (PTA) overlay welding method is lately introduced as one of the most useful surface overlay method of the engine component. In this paper, the overlay welding on the SNCrW heat resisting alloy was conducted by the PTA overlay welding process using the super alloy powder. The characteristics of the overlay layers were investigated through the metallurgical and abrasive test. Experimental results showed that the overlay on the SNCrW heat resisting alloy surface was successfully made without hot cracking. The friction wear characteristics of the Co-base Stellite 6 overlayer were most superior. However the abrasive wear characteristics were most inferior in the Co-base Stellite 6 overlayer.

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References

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