Solidification behavior of type 308 stainless steel filler metal

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A series of experiments that combined thermal analysis and interrupted solidification was carried out to understand the solidification behavior of type 308 stainless steel weld metal. Results indicate the following sequence of phase separations for the alloy investigated: L ..-->.. L + delta ..-->.. L + delta + ..gamma.. ..-->.. ..gamma.. + delta. Ferrite observed at room temperature was identified as the untransformed primary delta-ferrite that formed during the initial stages of solidification. The mode of freezing and the extent of solid-state diffusion both control the amount and distribution of ferrite. Microstructural and microprobe analyses indicated both extensive solid-state transformation ... continued below

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Pages: 16

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David, S. A. & Goodwin, G. M. January 1, 1979.

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Description

A series of experiments that combined thermal analysis and interrupted solidification was carried out to understand the solidification behavior of type 308 stainless steel weld metal. Results indicate the following sequence of phase separations for the alloy investigated: L ..-->.. L + delta ..-->.. L + delta + ..gamma.. ..-->.. ..gamma.. + delta. Ferrite observed at room temperature was identified as the untransformed primary delta-ferrite that formed during the initial stages of solidification. The mode of freezing and the extent of solid-state diffusion both control the amount and distribution of ferrite. Microstructural and microprobe analyses indicated both extensive solid-state transformation and solute redistribution during solidification and cooling from the nonequilibrium solidus to room temperature.

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Pages: 16

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Dep. NTIS, PC A02/MF A01.

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  • Report No.: ORNL/TM-6644
  • Grant Number: W-7405-ENG-26
  • DOI: 10.2172/6395596 | External Link
  • Office of Scientific & Technical Information Report Number: 6395596
  • Archival Resource Key: ark:/67531/metadc1205769

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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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Creation Date

  • January 1, 1979

Added to The UNT Digital Library

  • July 5, 2018, 11:11 p.m.

Description Last Updated

  • Feb. 21, 2019, 3:48 p.m.

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David, S. A. & Goodwin, G. M. Solidification behavior of type 308 stainless steel filler metal, report, January 1, 1979; Tennessee. (https://digital.library.unt.edu/ark:/67531/metadc1205769/: accessed March 22, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.