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High temperature crack growth in austenitic weld metal
, Vellore Margabandhu Radhakrishnan
Published in
1989
Volume: 33
   
Issue: 5
Pages: 801 - 811
Abstract
Type 308 stainless steel containing niobium is often used in high temperature applications. Welding is normally resorted to for joining purposes in such components. The crack growth behaviour in the weldment of 308 S.S. has been studied in the temperature range of 600 to 800°C. The stress intensity factor, the COD approach and the energy rate line integral have been tried to correlate the crack growth rate. Crack growth takes places along the interphase between the austenite and the primary arm of the delta ferrite at 600°C. At higher temperatures sigma phase becomes more dominant in the crack growth process. © 1989.
About the journal
JournalEngineering Fracture Mechanics
ISSN00137944
Open AccessNo
Concepts (7)
  •  related image
    IRON AND STEEL METALLOGRAPHY--AUSTENITE
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    STEEL--STRESSES
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    WELDS--THERMAL EFFECTS
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    AUSTENITIC WELD METAL
  •  related image
    HIGH TEMPERATURE CRACK GROWTH
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    Stress intensity factor
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    Stainless steel