The substructures of martensite in a TiNiHf10 high temperature shape memory alloy

descriptionPublicationkeyboard_double_arrow_right Article 01 Nov 2006 English Publisher:Elsevier BVJournal:Materials Letters, volume 60, pages 3,054-3,058 (issn: 0167-577X,

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Authors: Q. Wei; X.D. Han; Z. Zhang;

doi: 10.1016/j.matlet.2006.02.092

The substructures of martensite in a TiNiHf10 high temperature shape memory alloy

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Abstract

Abstract The martensite of a TiNiHf 10 alloy has been determined to possess a monoclinic crystal lattice structure with lattice parameters of a = 0.289 nm, b = 0.408 nm, c = 0.468 nm and β = 98.9°. The (001) compound twins are found to be the substructures of the TiNiHf 10 alloy and the [011] type II twin is found to be one kind of accommodation twin of the (001) twins. The (001) compound twin plane is parallel to the K 1 plane of the [011] type II twins when they co-exist. Four spear-like martensite variants form a self-accommodation group by (011) type I twinning relationship.

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Beijing University of Technology
China (People's Republic of)

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