Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
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Effects of Mn and C Addition on the Wear Resistance for the Recycled WC Dispersed Fe-base Hardfacing Weld

재생 WC 분산형 Fe계 하드페이싱 용접재료의 마모저항성에 미치는 Mn과 C 첨가의 영향

  • Kang, Nam-hyun (Advanced Welding & Joining, Korea Institute of Industrial Technology) ;
  • Chae, Hyun-byung (Advanced Welding & Joining, Korea Institute of Industrial Technology) ;
  • Kim, Jun-ki (Advanced Welding & Joining, Korea Institute of Industrial Technology) ;
  • Choi, Jong-ha (Saehwa Engineering Co. Ltd.) ;
  • Kim, Jeong-han (Advanced Welding & Joining, Korea Institute of Industrial Technology)
  • 강남현 (한국생산기술연구원 정밀접합·용접팀) ;
  • 채현병 (한국생산기술연구원 정밀접합·용접팀) ;
  • 김준기 (한국생산기술연구원 정밀접합·용접팀) ;
  • 최종하 (세화엔지니어링(주)) ;
  • 김정한 (한국생산기술연구원 정밀접합·용접팀)
  • Published : 2003.12.01
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Abstract

The abrasion and impact wear resistance were investigated on the hardfacing weld dispersed with the recycled hard metal(HM). The HM was composed of the tungsten carbide(WC) reinforced metal matrix composite. The cored wire filled with the 25-35wt.% HM and 2-8wt.% of the alloying element, Fe-75Mn- 7C(FeMnC), was used for the gas metal arc(GMA) welding. By using the cored wire of the 25wt.% HM and FeMnC addition, the weld showed mostly constant wear loss for the abrasion as a function of the FeMnC content. This was due to the insufficient amount of the tungsten carbide formed during the GMA welding. The FeMnC addition to the 35wt.% HM did not improve the abrasion wear property since the amount of the tungsten carbide formed was decreased with respect to the FeMnC amount. The 6wt.% FeMnC addition to the 35wt.% HM exhibited the better impact wear resistance than the hardfacing weld by 40wt.% HM.

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References

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