한국주조공학회지 (Journal of Korea Foundry Society)

  • 제14권6호
  • /
  • Pages.541-547
  • /
  • 1994
  • /
  • 1598-706X(pISSN)
  • /
  • 2288-8381(eISSN)
한국주조공학회 (Korea Foundry Society)
권호 표지

Al-10%Si-0.3%Mg 주조재의 보수용접에 따른 내구특성 연구

A Study on the Durability of Al-10%Si-0.3Mg Castings with Weld Repair

  • 김경현 (한국기계연구원 재료기술연구부) ;
  • 이정무 (한국기계연구원 재료기술연구부)
  • Kim, Kyung-Hyun (Dep. of Material Technology, Korea Institute of Machinery & Metals) ;
  • Lee, Jung-Moo (Dep. of Material Technology, Korea Institute of Machinery & Metals)
  • 발행 : 1994.12.30
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초록

The effects of weld repair on the durability in Al-10%Si-0.3%Mg castings were evaluated. The strength and fracture toughness in fusion zone were higher than those in the base metal by rapid cooling of fusion zone after welding. There were no significant differences between fatigue properties in castings and weld repaired specimen as the results of low cycle fatigue and rotating bending fatigue test. Therefore it was concluded that weld repairing did not have any significant effect on the mechanical properties of castings.

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