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Strain-induced phase transformation during thermo-mechanical processing of titanium alloys

Journal Article


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Abstract


  • Strain-induced phase transformation studies have been conducted in a Ti–6Al–2Sn–4Zr–6Mo alloy. This

    alloy was subjected to b sub-transus deformation upon slow cooling from the b-phase field and the

    effect of strain on the extent and morphology of the phase transformation during hot-deformation was

    determined. In addition, the transformation kinetics and the morphology of the newly formed a-phase

    were studied following deformation under different cooling conditions. By applying strain, the rate of the

    b-to-a phase transformation increased significantly during deformation as well as during slow cooling

    following deformation. This increase in the kinetics of the b-to-a transformation can be ascribed to straininduced

    phase transformation. Also, the extent of deformation of the b-phase had a marked effect on the

    resulting morphology and size of the newly formed a-phase. Transformation of un-deformed b-phase

    rendered a-phase of acicular morphology only. However, following deformation of the b-phase, acicular

    as well as globular a-phase morphologies have been observed upon cooling.

Publication Date


  • 2012

Citation


  • Dehghan-Manshadi, A. & Dippenaar, R. J. 2012, 'Strain-induced phase transformation during thermo-mechanical processing of titanium alloys', Materials Science and Engineering A: Structural Materials: Properties, Microstructure and Processing, vol. 552, no. August 30, pp. 451-456.

Scopus Eid


  • 2-s2.0-84863009048

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1072&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/67

Has Global Citation Frequency


Number Of Pages


  • 5

Start Page


  • 451

End Page


  • 456

Volume


  • 552

Issue


  • August 30

Place Of Publication


  • Switzerland

Abstract


  • Strain-induced phase transformation studies have been conducted in a Ti–6Al–2Sn–4Zr–6Mo alloy. This

    alloy was subjected to b sub-transus deformation upon slow cooling from the b-phase field and the

    effect of strain on the extent and morphology of the phase transformation during hot-deformation was

    determined. In addition, the transformation kinetics and the morphology of the newly formed a-phase

    were studied following deformation under different cooling conditions. By applying strain, the rate of the

    b-to-a phase transformation increased significantly during deformation as well as during slow cooling

    following deformation. This increase in the kinetics of the b-to-a transformation can be ascribed to straininduced

    phase transformation. Also, the extent of deformation of the b-phase had a marked effect on the

    resulting morphology and size of the newly formed a-phase. Transformation of un-deformed b-phase

    rendered a-phase of acicular morphology only. However, following deformation of the b-phase, acicular

    as well as globular a-phase morphologies have been observed upon cooling.

Publication Date


  • 2012

Citation


  • Dehghan-Manshadi, A. & Dippenaar, R. J. 2012, 'Strain-induced phase transformation during thermo-mechanical processing of titanium alloys', Materials Science and Engineering A: Structural Materials: Properties, Microstructure and Processing, vol. 552, no. August 30, pp. 451-456.

Scopus Eid


  • 2-s2.0-84863009048

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1072&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/67

Has Global Citation Frequency


Number Of Pages


  • 5

Start Page


  • 451

End Page


  • 456

Volume


  • 552

Issue


  • August 30

Place Of Publication


  • Switzerland