Martensitic transformation in Ti36.5Ni48.5Hf15 high temperature shape memory alloy

X. D. Han; C. Y. Chung; R. Wang; Z. Zhang; J. K L Lai; D. Z. Yang

doi:10.2320/matertrans1989.38.842

Martensitic transformation in Ti36.5Ni48.5Hf15 high temperature shape memory alloy

X. D. Han, C. Y. Chung, R. Wang, Z. Zhang, J. K L Lai, D. Z. Yang

Research output: Journal Publications and Reviews › RGC 22 - Publication in policy or professional journal

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Abstract

The lattice invariant shear of the martensitic transformations in the Ti_36.5Ni_48.5Hf₁₅ alloy was determined as a (001) B19′ compound twin by in-situ TEM technique. The morphological features of the (001)B19′ twin lamellas were revealed in detail. The shapes of the martensite variants were either the form of triangular, quadrilateral or lath plates. The mosaic-like morphology of the martensite variants corresponds to the cross section of the triangular, quadrilateral prisms, or the lath plates. The vertical section of the lath plates appears with a spear-like feature. The self-accommodation of the triangle, lateral prisms and the lath plates is usually composed of four martensite variants. There are 18 four-variants combinations of the mosaic-like martensite variants.

Original language	English
Pages (from-to)	842-851
Journal	Materials Transactions, JIM
Volume	38
Issue number	10
DOIs	https://doi.org/10.2320/matertrans1989.38.842
Publication status	Published - Oct 1997

Research Keywords

Martensite
Phase transformation
Shape memory alloy
TiNiHf
Variants

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title = "Martensitic transformation in Ti36.5Ni48.5Hf15 high temperature shape memory alloy",

abstract = "The lattice invariant shear of the martensitic transformations in the Ti36.5Ni48.5Hf15 alloy was determined as a (001) B19′ compound twin by in-situ TEM technique. The morphological features of the (001)B19′ twin lamellas were revealed in detail. The shapes of the martensite variants were either the form of triangular, quadrilateral or lath plates. The mosaic-like morphology of the martensite variants corresponds to the cross section of the triangular, quadrilateral prisms, or the lath plates. The vertical section of the lath plates appears with a spear-like feature. The self-accommodation of the triangle, lateral prisms and the lath plates is usually composed of four martensite variants. There are 18 four-variants combinations of the mosaic-like martensite variants.",

keywords = "Martensite, Phase transformation, Shape memory alloy, TiNiHf, Variants",

author = "Han, {X. D.} and Chung, {C. Y.} and R. Wang and Z. Zhang and Lai, {J. K L} and Yang, {D. Z.}",

year = "1997",

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doi = "10.2320/matertrans1989.38.842",

language = "English",

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TY - JOUR

T1 - Martensitic transformation in Ti36.5Ni48.5Hf15 high temperature shape memory alloy

AU - Han, X. D.

AU - Chung, C. Y.

AU - Wang, R.

AU - Zhang, Z.

AU - Lai, J. K L

AU - Yang, D. Z.

PY - 1997/10

Y1 - 1997/10

N2 - The lattice invariant shear of the martensitic transformations in the Ti36.5Ni48.5Hf15 alloy was determined as a (001) B19′ compound twin by in-situ TEM technique. The morphological features of the (001)B19′ twin lamellas were revealed in detail. The shapes of the martensite variants were either the form of triangular, quadrilateral or lath plates. The mosaic-like morphology of the martensite variants corresponds to the cross section of the triangular, quadrilateral prisms, or the lath plates. The vertical section of the lath plates appears with a spear-like feature. The self-accommodation of the triangle, lateral prisms and the lath plates is usually composed of four martensite variants. There are 18 four-variants combinations of the mosaic-like martensite variants.

AB - The lattice invariant shear of the martensitic transformations in the Ti36.5Ni48.5Hf15 alloy was determined as a (001) B19′ compound twin by in-situ TEM technique. The morphological features of the (001)B19′ twin lamellas were revealed in detail. The shapes of the martensite variants were either the form of triangular, quadrilateral or lath plates. The mosaic-like morphology of the martensite variants corresponds to the cross section of the triangular, quadrilateral prisms, or the lath plates. The vertical section of the lath plates appears with a spear-like feature. The self-accommodation of the triangle, lateral prisms and the lath plates is usually composed of four martensite variants. There are 18 four-variants combinations of the mosaic-like martensite variants.

KW - Martensite

KW - Phase transformation

KW - Shape memory alloy

KW - TiNiHf

KW - Variants

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U2 - 10.2320/matertrans1989.38.842

DO - 10.2320/matertrans1989.38.842

M3 - RGC 22 - Publication in policy or professional journal

SN - 0916-1821

VL - 38

SP - 842

EP - 851

JO - Materials Transactions, JIM

JF - Materials Transactions, JIM

IS - 10

ER -

Martensitic transformation in Ti36.5Ni48.5Hf15 high temperature shape memory alloy

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