Transformation kinetics in controlled-power and controlled-temperature cycle testing Metadata

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Title

  • Main Title Transformation kinetics in controlled-power and controlled-temperature cycle testing

Creator

  • Author: Robino, C.V.
    Creator Type: Personal
  • Author: Knorovsky, G.
    Creator Type: Personal
  • Author: Dykhuizen, R.C.
    Creator Type: Personal
  • Author: MacCallum, D.O.
    Creator Type: Personal
  • Author: Damkroger, B.K.
    Creator Type: Personal

Contributor

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

Publisher

  • Name: Sandia National Laboratories
    Place of Publication: Albuquerque, New Mexico
    Additional Info: Sandia National Labs., Albuquerque, NM (United States)

Date

  • Creation: 1998-06-01

Language

  • English

Description

  • Content Description: On-heating transformation kinetics were investigated for several steels by using a Gleeble capable of programmable power input as well as programmable temperature cycling. Transformation kinetics determined in both modes are reported. The temperature cycles are significantly different between the two modes due to the latent heat associated with the phase transformations. Both diffusion rates and transformation driving force increase with temperature above the eutectoid temperature, therefore the latent heat can potentially have a significant impact on the transformation kinetics. Experiments with plain carbon steels illustrate that the latent heat of austenite formation causes an appreciable temperature arrest during transformation, and the dilatation response is similarly altered. A kinetic transformation model, based on the decomposition of pearlite and the diffusional growth of austenite, reproduced the transient dilatation data obtained from both control modes reasonably well using the same kinetic parameter values.
  • Physical Description: 8 p.

Subject

  • Keyword: Crystal-Phase Transformations
  • Keyword: Austenite
  • STI Subject Categories: 36 Materials Science
  • Keyword: Kinetics
  • Keyword: Thermal Cycling
  • Keyword: Pearlite
  • Keyword: Experimental Data
  • Keyword: Steels

Source

  • Conference: 5. international conference on trends in welding research, Pine Mountain, GA (United States), 1-5 Jun 1998

Collection

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

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Report

Format

  • Text

Identifier

  • Other: DE98005521
  • Report No.: SAND--98-1269C
  • Report No.: CONF-980657--
  • Grant Number: AC04-94AL85000
  • DOI: 10.2172/672114
  • Office of Scientific & Technical Information Report Number: 672114
  • Archival Resource Key: ark:/67531/metadc710149

Note

  • Display Note: OSTI as DE98005521