Implications of early stages in the growth of stress corrosion cracking on component reliability

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Environment-induced crack growth generally progresses through several stages prior to component failure. Crack initiation, short crack growth, and stage 1 growth are early stages in crack development that are summarized in this paper. The implications of these stages on component reliability, derive from the extended time that the crack exists in the early stages because crack velocity is slow. The duration of the early stages provides a greater opportunity for corrective action if cracks can be detected. Several important factors about the value of understanding short crack behavior include: (1) life prediction requires a knowledge of the total life cycle ... continued below

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16 p.

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Jones, R.H. & Simonen, E.P. April 1, 1995.

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  • Pacific Northwest Laboratory
    Publisher Info: Pacific Northwest Lab., Richland, WA (United States)
    Place of Publication: Richland, Washington

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Description

Environment-induced crack growth generally progresses through several stages prior to component failure. Crack initiation, short crack growth, and stage 1 growth are early stages in crack development that are summarized in this paper. The implications of these stages on component reliability, derive from the extended time that the crack exists in the early stages because crack velocity is slow. The duration of the early stages provides a greater opportunity for corrective action if cracks can be detected. Several important factors about the value of understanding short crack behavior include: (1) life prediction requires a knowledge of the total life cycle of the crack including the early stages, (2) greater reliability is possible if the transition between short and long crack behavior is known component life after this transition is short and (3) remedial actions are more effective for short than long cracks.

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16 p.

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OSTI as DE95011498

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  • Research Assistant Task Force conference, Charlotte, NC (United States), 11-13 Apr 1995

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  • Other: DE95011498
  • Report No.: PNL-SA--26120
  • Report No.: CONF-9504156--1
  • Grant Number: AC06-76RL01830
  • Office of Scientific & Technical Information Report Number: 69171
  • Archival Resource Key: ark:/67531/metadc709324

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • April 1, 1995

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  • Sept. 12, 2015, 6:31 a.m.

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  • April 7, 2016, 2:47 p.m.

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Jones, R.H. & Simonen, E.P. Implications of early stages in the growth of stress corrosion cracking on component reliability, article, April 1, 1995; Richland, Washington. (digital.library.unt.edu/ark:/67531/metadc709324/: accessed October 21, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.