Journal of Welding and Joining

The Korean Welding and Joining Society (대한용접접합학회)
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Prediction of Cr Content in the Martensitic-hardfaced Weldment Utilizing Dilution Rate Analytically Estimated

마르텐사이트계 경화 육성용접부의 희석율 해석을 통한 Cr함량 예측에 대한 연구

  • Kim, Bong-Hun (Dept. of Mechanical and Automotive Engineering, Daegu University) ;
  • Kim, Chun-Hwan (Dept. of Mechanical Engineering, Graduate school, Daegu University)
  • 김봉훈 (대구대학교 기계.자동차공학부) ;
  • 김춘환 (대구대학교 대학원 기계공학과)
  • Received : 2014.08.29
  • Accepted : 2014.12.17
  • Published : 2014.12.31
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Abstract

High-temperature corrosion resistance of martensitic-hardfaced weldment is generally evaluated by the Cr content depending on dilution rate. Present study used a commercial program(SYSWELD) applying three-dimensional heat flow analysis to predict temperature distribution of weld. Configuration of weld bead can be determined by the contour of melting temperature and simultaneously dilution rate is calculated to predict Cr content. Experimental study also has been conducted to measure Cr content of harfaced surface welded by FCAW. Results indicated that computational results were well matched with those obtained from experiments.

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References

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