The martensitic transformation in In-Tl alloys revisited.

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dc.contributor.authorFinlayson, TRen_AU
dc.contributor.authorMcIntyre, GJen_AU
dc.contributor.authorRule, KCen_AU
dc.contributor.authorSaxena, Aen_AU
dc.date.accessioned2021-12-21T00:42:09Zen_AU
dc.date.available2021-12-21T00:42:09Zen_AU
dc.date.issued2019-02-05en_AU
dc.date.statistics2021-10-12en_AU
dc.description.abstractThe traditional view for the martensitic transformation in In-xat%Tl alloys, for 15.5 ≤ 𝑥 ≤ 30.5 was via a double shear such as: (101) [101]; (011) [011], on the basis of optical microscopy observations and measurements of the (𝑐11 - 𝑐12)/2 elastic constant. However, this model was called into question following recent low-ζ measurements of the [ζζ0][ζζ0] phonons. An alternative model for the formation of coherent nuclei and growth along conjugate {111} planes was once proposed by Geisler. This model is consistent with some electron diffuse scattering data as well as yielding identical x-ray pole figure results as those for the double-shear mechanism. Appropriate nuclei could be generated by 〈111〉 〈112〉 atomic displacements. To test such an idea we have measured the [ζζζ]T phonon branch for a good quality In-Tl crystal in a recent experiment using the cold-triple axis facility, SIKA, at the OPAL Research Reactor. These results will be reported and compared with the predictions of a model for the dynamical behaviour of coherent interfaces and modulated structures based on topological solitons, first introduced by Barsch and Krumhansl and applied to the twins accompanying martensitic transformations.en_AU
dc.identifier.citationFinlayson, T. R., McIntyre, G. J., Rule, K. C., & Saxena, A. (2019). The martensitic transformation in In-Tl alloys revisited. Poster presented to the 43rd Annual Condensed Matter and Materials Meeting, Charles Sturt University, Wagga Wagga, NSW, 5th February - 8th February, 2019, (pp. 67). Retrieved from: https://physics.org.au/wp-content/uploads/cmm/2019/Wagga_2019_Conference_Handbook.pdfen_AU
dc.identifier.conferenceenddate8 February 2019en_AU
dc.identifier.conferencename43rd Annual Condensed Matter and Materials Meetingen_AU
dc.identifier.conferenceplaceWagga Wagga, NSWen_AU
dc.identifier.conferencestartdate5 February 2019en_AU
dc.identifier.pagination67en_AU
dc.identifier.urihttps://physics.org.au/wp-content/uploads/cmm/2019/Wagga_2019_Conference_Handbook.pdfen_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/12608en_AU
dc.language.isoenen_AU
dc.publisherAustralian Institute of Physicsen_AU
dc.subjectAlloysen_AU
dc.subjectAustraliaen_AU
dc.subjectOPAL Reactoren_AU
dc.subjectCoherent scatteringen_AU
dc.subjectDiffractionen_AU
dc.subjectScatteringen_AU
dc.subjectIron alloysen_AU
dc.subjectIron base alloysen_AU
dc.subjectMartensitic steelsen_AU
dc.titleThe martensitic transformation in In-Tl alloys revisited.en_AU
dc.typeConference Posteren_AU
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