Phase transformations in Pd- and Ni-rich Ti-Pd-Ni alloys

M. Nagasako, M. Nishida

研究成果: Contribution to journalConference article査読

7 被引用数 (Scopus)

抄録

It has been found that Ti45Pd45Ni10 alloy shows peculiar phase transformations. Upon heating in DSC measurement, an endothermic reaction occurs firstly around 373 K, which corresponds to the reverse martensitic transformation from B19 to B2 structure. Subsequently, a pair of exothermic and endothermic peaks is observed from 550 to 740 K, which is due to the appearance and disappearance of new order phase with long period stacking structure. One of characteristic feature in electron diffraction pattern of the new phase is superlattice spots at 1/8 position in the row of reflections of 111B2*. Finally, an exothermic reaction which corresponds to the formation of Ti2(PdNi)3 phase is detected around 850 K. More interesting phenomenon, which is the parent phase stabilization with low temperature aging below 500 K, is discovered. The ω-like diffuse reflections with rather strong intensity are observed in electron diffraction patterns taken from the stabilized B2 phase. Morphological and crystallographic aspects of the new order phase are also discussed.

本文言語英語
ページ(範囲)1043-1046
ページ数4
ジャーナルJournal De Physique. IV : JP
112 II
DOI
出版ステータス出版済み - 10 2003
外部発表はい
イベントInternational Conference on Martensitic Transformations - Espoo, フィンランド
継続期間: 6 10 20026 14 2002

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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