Applicability of Alloy 690/52/152 Crack Growth Testing Conditions to Plant Components

  • Warren BamfordEmail author
  • Steve Fyfitch
  • Raj Pathania
  • Paul Crooker
Conference paper
Part of the The Minerals, Metals & Materials Series book series (MMMS)


A great deal of PWSCC testing has been conducted on a range of A690 materials. An expert panel organized by EPRI is working to collect all the available laboratory data for its applicability to actual plant components. This paper will review the considerations that are being used to perform this evaluation, and the results of that evaluation. One of the key variables is cold work, and detailed studies have been conducted to measure the residual strains, so as to determine the amount of cold work that can exist in a heat-affected-zone (HAZ) region of a typical weld. In addition to these measurements on weldments, limitations on bulk cold work on base metal imposed by all vendors will be reviewed. The effect of the orientation of the specimens tested will be compared with the orientations of typical flaws in operating plants, so as to determine the relevance of the data to those plants.


Alloy 690 Alloy 152 Alloy 52 PWSCC Cold work Orientation 



Valuable contributions to this work were obtained from Martin Morra and Peter Andresen of GE Global Research, Mike Burke and Dave Love of Westinghouse, and Peter Scott. The authors also wish to acknowledge the contributions of other members of the Alloy 690 Applications Expert Panel: Amanda Jenks, Pal Efsing, Dave Morton, and Toshio Yonezawa. This work was sponsored by the Electric Power Research Institute.


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Copyright information

© The Minerals, Metals & Materials Society 2019

Authors and Affiliations

  • Warren Bamford
    • 1
    Email author
  • Steve Fyfitch
    • 2
  • Raj Pathania
    • 3
  • Paul Crooker
    • 3
  1. 1.WestinghousePittsburghUSA
  2. 2.AREVA Inc.LynchburgUSA
  3. 3.EPRIPalo AltoUSA

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