섬유

twenty-six-inch pipe nde instrument surveillance test

  • 출판일1999.03
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 271
the 26 inch diameter pipe test stand simulates an operating reactor environment and was fabricated for evaluating in-service inspection techniques for large diameter pipes. the pipe specimen has stress corrosion cracking (scc) promoted in the test weld region by means of water chemistry control and the use of graphite wool technique to create an artificial crevice. after initiation of scc, crack growth was observed and monitored by nondestructive examination both during operation and at several intervals during test stand shutdown. nondestructive examination techniques evaluated include dye penetrant, ultrasonic radiography, electrical resistivity gauging and acoustic emission
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