Phase transformations and microstructure development in low alloy steel welds

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Microstructure development in low alloy steel welds depends on various phase transformations that are a function of weld heating and cooling. The phase changes include non-metallic oxide inclusion formation in the liquid state, weld pool solidification, and solid state transformations. In this paper the mechanism of inclusion formation during low alloy steel welding is considered and the model predictions are compared with published results. The effect of inclusions on the austenite to ferrite transformation kinetics is measured and the mechanisms of transformation are discussed. The austenite gain development is related to the driving force for transformation of {delta} ferrite to ... continued below

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14 p.

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Babu, S.S.; David, S.A. & Vitek, J.M. July 1, 1995.

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Description

Microstructure development in low alloy steel welds depends on various phase transformations that are a function of weld heating and cooling. The phase changes include non-metallic oxide inclusion formation in the liquid state, weld pool solidification, and solid state transformations. In this paper the mechanism of inclusion formation during low alloy steel welding is considered and the model predictions are compared with published results. The effect of inclusions on the austenite to ferrite transformation kinetics is measured and the mechanisms of transformation are discussed. The austenite gain development is related to the driving force for transformation of {delta} ferrite to austenite.

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14 p.

Notes

OSTI as DE95014284

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  • International symposium on phase transformations during thermal/mechanical processing of steel, Vancouver (Canada), 20-23 Aug 1995

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  • Other: DE95014284
  • Report No.: CONF-9508134--1
  • Grant Number: AC05-84OR21400
  • Office of Scientific & Technical Information Report Number: 86931
  • Archival Resource Key: ark:/67531/metadc794396

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Office of Scientific & Technical Information Technical Reports

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  • July 1, 1995

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  • Dec. 19, 2015, 7:14 p.m.

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  • Jan. 22, 2016, 1:56 p.m.

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Babu, S.S.; David, S.A. & Vitek, J.M. Phase transformations and microstructure development in low alloy steel welds, article, July 1, 1995; Tennessee. (digital.library.unt.edu/ark:/67531/metadc794396/: accessed November 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.