Effect of oxide inclusions on the solid state transformation in low-alloy steel fusion welds Metadata

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Title

  • Main Title Effect of oxide inclusions on the solid state transformation in low-alloy steel fusion welds

Creator

  • Author: Babu, S.S.
    Creator Type: Personal
    Creator Info: Pennsylvania State Univ., PA (United States)
  • Author: David, S.A.
    Creator Type: Personal
  • Author: Vitek, J.M.
    Creator Type: Personal
    Creator Info: Oak Ridge National Lab, TN (United States)

Contributor

  • Sponsor: United States. Department of Energy.
    Contributor Type: Organization
    Contributor Info: USDOE, Washington, DC (United States)

Publisher

  • Name: Oak Ridge National Laboratory
    Place of Publication: Tennessee
    Additional Info: Oak Ridge National Lab., TN (United States)

Date

  • Creation: 1995-12-31

Language

  • English

Description

  • Content Description: Non-metallic inclusions are known to influence the properties of low alloy steel weld metal by altering the microstructure development. Isothermal transformation kinetics of austenite to acicular ferrite and allotriomorphic ferrite were measured in reheated low alloy steel weld deposits with similar weld compositions and austenite grain size but different inclusion characteristics. Accelerated kinetics of the transformation to acicular ferrite were observed in the weld metal containing coarser titanium-rich inclusions. The results are also discussed in relation to the predictions of inclusion model. The kinetics of the transformation to allotriomorphic ferrite were not influenced by a change in the inclusion characteristics, but, rather, by a change in austenite grain size. A theoretical analysis of austenite grain development during weld cooling is considered in this work. The austenite grain size was found to depend on the driving force for transformation from 6 ferrite to austenite ({Delta}G{sup {sigma}->{gamma}}) calculated from ThermoCalc{trademark} software.
  • Physical Description: 7 p.

Subject

  • Keyword: Oxidation
  • Keyword: Austenite
  • STI Subject Categories: 36 Materials Science
  • Keyword: Temperature Dependence
  • Keyword: Welded Joints
  • Keyword: Inclusions
  • Keyword: Grain Size
  • Keyword: Low Alloy Steels
  • Keyword: Phase Transformations
  • Keyword: Time Dependence
  • Keyword: Microstructure
  • Keyword: Ferrite

Source

  • Conference: 4. international conference on trends in welding research, Gatlinburg, TN (United States), 5-9 Jun 1995

Collection

  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Article

Format

  • Text

Identifier

  • Other: DE96003782
  • Report No.: CONF-950682--11
  • Grant Number: AC05-84OR21400
  • Office of Scientific & Technical Information Report Number: 172121
  • Archival Resource Key: ark:/67531/metadc672998

Note

  • Display Note: OSTI as DE96003782
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