Propagation Behavior of Root Crack in Weld Metal of High Strength Steel on the Basis of AE Source Location Technique : Application of Acoustic Emission Technique for Weld Cracking (III)(Materials, Metallurgy, Weldability)

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Author(s)

Abstract

AE source location technique is applied to restraint cracking test of HY-type HT90 high strength steel with Y-groove where the root crack has a tendency to initiate and propagate in the weld metal. It is shown that AE events have a tendency to concentrate in places where the root cracks are propagating toward the surface of weld metal. This behavior is caused by anisotropy of propagation of hydrogen-induced crack in weld metal, and is quite different from that in the case where the root crack initiates and propagates in the heat-affected zone.

Journal

  • Transactions of JWRI

    Transactions of JWRI 8(1), 97-103, 1979-06

    Osaka University

Codes

  • NII Article ID (NAID)
    110006484644
  • NII NACSIS-CAT ID (NCID)
    AA00867058
  • Text Lang
    ENG
  • ISSN
    03874508
  • Data Source
    NII-ELS 
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