Journal of Power System Engineering (동력기계공학회지)

The Korean Society for Power System Engineering (한국동력기계공학회)
권호 표지

A Study on the Corrosion Properties of Underwater Wet Arc Welds Using the SM 41

선체용 압연 강판의 습식 수중 아크 용접부의 부식특성에 관한 연구

  • 곽희환 (부경대학교 대학원 금속공학과) ;
  • 김창규 (부경대학교 신소재공학부 금속시스템공학) ;
  • 김민남 (부경대학교 기계공학부) ;
  • 황성훈 (부경대학교 대학원 금속공학과)
  • Published : 2005.11.30
Download PDF
⟨ Previous Next ⟩

Abstract

Underwater wet arc welds were experimentally performed on 11mm thick KR-RA steel plate using six different types of flux coated electrodes of 4.0mm diameter, KSKR, KSKT, USBL, JPUW, UWEA and UWEB. From analysis of bead appearance, detachability of weld slag, spatter occurrence and arc stability, JPUW gives the best result, and UWEB is superior to KSKR and KSKT. By experimental result of hardness distribution on the weld bonds, UWEB weld has the narrowest bond structure which is probable condition to get the best mechanical properties of weld. UWEB and JPUW welds have more even hardness distribution across weld deposit and base metal. Upon polarization test to measure the respondency of corrosion, the electrode of UWEB shows the most excellent degree due to the low open circuit potential difference.

Keywords