In situ X-ray diffraction study of the phase transformation in the non-stoichiometric intermetallic compound Ti₃Sn

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• 作者：Olga Ivanova ; Myroslav Karpets ; Alain R. Yavari ; Konstantinos Georgarakis ; Yuriy Podrezov
• 关键词：Intermetallic compound ; Crystal structure ; Martensitic phase transformation ; X-ray diffraction ; Transmission electron microscopy
• 刊名：Journal of Alloys and Compounds
• 出版年：2014
• 出版时间：5 January, 2014
• 年：2014
• 卷：582
• 期：Complete
• 页码：360-363
• 全文大小：772 K

文摘

Phase transformations of Ti_75.5Sn_24.5 were investigated using in situ X-ray diffraction during heating. The as cast Ti_75.5Sn_24.5 was found to consist mainly of an orthorhombic Cmcm phase at room temperature; upon heating to 473 K the material undergoes a reversible group-subgroup transition to hexagonal P6₃/mmc (D0₁₉) phase. Crystal structure and lattice parameters of the orthorhombic phase are suggested based on X-ray and electron diffraction results. The crystallographic relation between parent and product phase is also discussed.