In-situ study of phases and microstructures of titanium aluminides

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dc.contributor.authorLiss, KDen_AU
dc.contributor.authorYeoh, LAen_AU
dc.contributor.authorBartels, Aen_AU
dc.contributor.authorClemens, Hen_AU
dc.contributor.authorPhelan, Den_AU
dc.contributor.authorBuslaps, Ten_AU
dc.date.accessioned2021-09-21T01:40:19Zen_AU
dc.date.available2021-09-21T01:40:19Zen_AU
dc.date.issued2006-12-04en_AU
dc.date.statistics2021-08-31en_AU
dc.description.abstractThe phase diagrams and microstructures of titanium aluminides are rather complex and little or no data were observed during in-situ experiments at elevated temperatures up to 1400 °C, where different processes compete, such as recovery, phase transitions, recrystallization, twinning, crystallite growth, segregation and more. Two-dimensional high energy X-ray diffraction is a powerful method to characterize the phase composition and modern synchrotron sources are strong enough to follow the evolution of the material in real time. Besides texture relations as well as grain and phase correlations, we followed the coherent transition from the alpha to the gamma phase and vice versa. A streak of diffuse scattering appears in reciprocal space bridging reciprocal lattice points of both phases and disappears after the transition completed. This proves, that the phase transition is a well ordered process. Furthermore, the system has been observed in a Laser Scanning Confocal Microscope in situ and in real time, relating the micro structure to the diffraction pattern. Fine laths of the lamellar alpha/gamma grains are created during the phase transition and coarsen as a function of time. The unique combination of the two complementary in-situ techniques was used for the first time and reveals novel, consistent information on a phase transformation in a real solid.en_AU
dc.identifier.citationLiss, K. D., Yeoh, L., Bartels, A., Clemens, H., Phelan, D., & Buslaps, T. (2006). In-situ study of phases and microstructures of titanium aluminides. Paper presented at the Australian Institute of Physics 17th National Congress 2006, Brisbane Convention and Exhibition Centre, Brisbane Australia, Sunday 3 - Friday 8 December 2006. Retrieved from: https://www.aip.org.au/resources/Documents/Congress/AIPCongress-2006-Program.pdfen_AU
dc.identifier.conferenceenddate8 December 2006en_AU
dc.identifier.conferencenameAustralian Institute of Physics 17th National Congress 2006en_AU
dc.identifier.conferenceplaceBrisbane, Australiaen_AU
dc.identifier.conferencestartdate3 December 2006en_AU
dc.identifier.urihttps://www.aip.org.au/resources/Documents/Congress/AIPCongress-2006-Program.pdfen_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/11755en_AU
dc.language.isoenen_AU
dc.publisherAustralian Institute of Physicsen_AU
dc.subjectPhase diagramsen_AU
dc.subjectMicrostructureen_AU
dc.subjectTitaniumen_AU
dc.subjectTemperature range 1000-4000 Ken_AU
dc.subjectRecrystallizationen_AU
dc.subjectTwinningen_AU
dc.subjectX-ray diffractionen_AU
dc.subjectCrystal latticesen_AU
dc.titleIn-situ study of phases and microstructures of titanium aluminidesen_AU
dc.typeConference Abstracten_AU
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