Embrittlement of austenitic stainless steel welds

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Description

To prevent hot-cracking, austenitic stainless steel welds generally contain a small percent of delta ferrite. Although ferrite has been found to effectively prevent hot-cracking, it can lead to embrittlement of welds when exposed to elevated temperatures. The aging behavior of type-308 stainless steel weld has been examined over a range of temperatures 475--850 C for times up to 10,000 hrs. Upon aging, and depending on the temperature range, the unstable ferrite may undergo a variety of solid state transformations. These phase changes creep-rupture and Charpy impact properties.

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16 p.

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David, S.A.; Vitek, J.M. & Alexander, D.J. June 1, 1995.

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This article is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 16 times . More information about this article can be viewed below.

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Description

To prevent hot-cracking, austenitic stainless steel welds generally contain a small percent of delta ferrite. Although ferrite has been found to effectively prevent hot-cracking, it can lead to embrittlement of welds when exposed to elevated temperatures. The aging behavior of type-308 stainless steel weld has been examined over a range of temperatures 475--850 C for times up to 10,000 hrs. Upon aging, and depending on the temperature range, the unstable ferrite may undergo a variety of solid state transformations. These phase changes creep-rupture and Charpy impact properties.

Physical Description

16 p.

Notes

INIS; OSTI as DE95013046

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  • Department of Energy/Electric Power Research Institute/National Institute of Standards and Technology (DOE/EPRI/NIST) workshop, Charlotte, NC (United States), 11-13 Apr 1995

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  • Other: DE95013046
  • Report No.: CONF-9504168--1
  • Grant Number: AC05-84OR21400
  • Office of Scientific & Technical Information Report Number: 79733
  • Archival Resource Key: ark:/67531/metadc741815

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  • June 1, 1995

Added to The UNT Digital Library

  • Oct. 19, 2015, 7:39 p.m.

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  • Jan. 21, 2016, 8:10 p.m.

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David, S.A.; Vitek, J.M. & Alexander, D.J. Embrittlement of austenitic stainless steel welds, article, June 1, 1995; Tennessee. (digital.library.unt.edu/ark:/67531/metadc741815/: accessed August 16, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.