Effects of LWR coolant environments on fatigue lives of austenitic stainless steels.

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Fatigue tests have been conducted on Types 304 and 316NG stainless steels to evaluate the effects of various material and loading variables, e.g., steel type, strain rate, dissolved oxygen (DO) in water, and strain range, on the fatigue lives of these steels. The results confirm significant decreases in fatigue life in water. Unlike the situation with ferritic steels, environmental effects on Types 304 and 316NG stainless steel are more pronounced in low-DO than in high-DO water. Experimental results have been compared with estimates of fatigue life based on a statistical model. The formation and growth of fatigue cracks in air ... continued below

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14 p.

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Chopra, O. K. January 13, 1998.

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Description

Fatigue tests have been conducted on Types 304 and 316NG stainless steels to evaluate the effects of various material and loading variables, e.g., steel type, strain rate, dissolved oxygen (DO) in water, and strain range, on the fatigue lives of these steels. The results confirm significant decreases in fatigue life in water. Unlike the situation with ferritic steels, environmental effects on Types 304 and 316NG stainless steel are more pronounced in low-DO than in high-DO water. Experimental results have been compared with estimates of fatigue life based on a statistical model. The formation and growth of fatigue cracks in air and water environments are discussed.

Physical Description

14 p.

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OSTI as DE00010546

Medium: P; Size: 14 pages

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  • 1997 ASME Pressure Vessels and Piping Conference, Orlando, FL (US), 07/27/1997--07/31/1997

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  • Report No.: ANL/ET/CP-95218
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 10546
  • Archival Resource Key: ark:/67531/metadc624659

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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.

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  • January 13, 1998

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  • June 16, 2015, 7:43 a.m.

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  • April 7, 2017, 2:07 p.m.

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Chopra, O. K. Effects of LWR coolant environments on fatigue lives of austenitic stainless steels., article, January 13, 1998; Illinois. (digital.library.unt.edu/ark:/67531/metadc624659/: accessed April 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.