Proceedings of the Korean Society for Technology of Plasticity Conference (한국소성가공학회:학술대회논문집)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
권호 표지

Failure Analysis of Large Ring Forged Products

대형 링단조품의 결함원인 분석 및 대책

  • 진상욱 (경상대학교 나노신소재공학부, I-큐브 소재.부품 인력양성사업단) ;
  • 이영선 (한국재료연구소 소성응용연구그룹) ;
  • 김상식 (경상대학교 나노신소재공학부, I-큐브 소재.부품 인력양성사업단)
  • Published : 2009.05.07
Download PDF
⟨ Previous Next ⟩

Abstract

In this study, the importance of failure analysis on large ring forged products was assessed and the process and methodology were introduced. Failure analysis case study of the large ring forged steel product with approximately 10 mm long internal crack found by non-destructive test (NDT) was presented. The micrographic and fractographic observations and the verifying tests were conducted on the cracked specimen to identify the possible metallurgical reason for the defects, and the metallurgical aspects of internal crack formation were discussed.

Keywords