Failure analysis and evaluation of strength properties for brazed joints

K. W. Kang, B. J. Lee, Kyung Young Jhang, J. K. Kim

Research output: Contribution to journalArticle

1 Scopus citations


This study was aimed at identifying failure mechanism and strength of brazed copper pipe used in household air conditioner. For these ends, the brazed joints with various brazing length were manufactured according to manufacturer's recommended methods. The 3-dimensional X-ray technique was used to identify internal flaws and their failure mechanism in brazed joints. And, strength of brazed joint was evaluated by static tests. To evaluate the effect of heat on the brazed joints, the micro-Vickers hardness is measured. Also, bursting tests were performed for burst pressure of brazed joints by using of self-designed internal pressure bursting tester.

Original languageEnglish
Pages (from-to)1522-1525
Number of pages4
JournalKey Engineering Materials
Volume321-323 II
Publication statusPublished - 2006 Oct 12



  • Brazed joint
  • Internal pressure test
  • Micro-Vickers hardness
  • Non-destructive test
  • Static test

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