Influence of the microstructural inhomogeneities on the martensite-to-austenite phase transformation temperatures in TiNiCu-based shape-memory alloys

Titus Haenschke; Claire L. Davis; Moataz M. Attallah

doi:10.1016/j.matchemphys.2013.05.010

Influence of the microstructural inhomogeneities on the martensite-to-austenite phase transformation temperatures in TiNiCu-based shape-memory alloys

Titus Haenschke, Claire L. Davis, Moataz M. Attallah^*

^*Corresponding author for this work

Metallurgy and Materials

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

The morphology and distribution of Ti₂Ni precipitates in two batches of Ti-40.8Ni-9Cu (at.%) shape-memory alloys were studied to understand the influence of microstructural inhomogeneities on the martensite-to-austenite phase transformation. Although both batches were produced using nominally identical processing conditions at the same facility, the transformation temperatures were remarkably different. Such behaviour was linked to stereological differences in the precipitates morphology and size distributions, as well as slight differences in the chemical composition

Original language	English
Pages (from-to)	272-277
Number of pages	6
Journal	Materials Chemistry and Physics
Volume	141
Issue number	1
DOIs	https://doi.org/10.1016/j.matchemphys.2013.05.010
Publication status	Published - 15 Aug 2013

Keywords

Differential scanning calorimetry
Energy-dispersive analysis of X-rays
Martensitic transformations
Microstructure
Shape-memory effects

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics

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10.1016/j.matchemphys.2013.05.010

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title = "Influence of the microstructural inhomogeneities on the martensite-to-austenite phase transformation temperatures in TiNiCu-based shape-memory alloys",

abstract = "The morphology and distribution of Ti2Ni precipitates in two batches of Ti-40.8Ni-9Cu (at.%) shape-memory alloys were studied to understand the influence of microstructural inhomogeneities on the martensite-to-austenite phase transformation. Although both batches were produced using nominally identical processing conditions at the same facility, the transformation temperatures were remarkably different. Such behaviour was linked to stereological differences in the precipitates morphology and size distributions, as well as slight differences in the chemical composition",

keywords = "Differential scanning calorimetry, Energy-dispersive analysis of X-rays, Martensitic transformations, Microstructure, Shape-memory effects",

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AU - Haenschke, Titus

AU - Davis, Claire L.

AU - Attallah, Moataz M.

PY - 2013/8/15

Y1 - 2013/8/15

N2 - The morphology and distribution of Ti2Ni precipitates in two batches of Ti-40.8Ni-9Cu (at.%) shape-memory alloys were studied to understand the influence of microstructural inhomogeneities on the martensite-to-austenite phase transformation. Although both batches were produced using nominally identical processing conditions at the same facility, the transformation temperatures were remarkably different. Such behaviour was linked to stereological differences in the precipitates morphology and size distributions, as well as slight differences in the chemical composition

AB - The morphology and distribution of Ti2Ni precipitates in two batches of Ti-40.8Ni-9Cu (at.%) shape-memory alloys were studied to understand the influence of microstructural inhomogeneities on the martensite-to-austenite phase transformation. Although both batches were produced using nominally identical processing conditions at the same facility, the transformation temperatures were remarkably different. Such behaviour was linked to stereological differences in the precipitates morphology and size distributions, as well as slight differences in the chemical composition

KW - Differential scanning calorimetry

KW - Energy-dispersive analysis of X-rays

KW - Martensitic transformations

KW - Microstructure

KW - Shape-memory effects

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SN - 0254-0584

VL - 141

SP - 272

EP - 277

JO - Materials Chemistry and Physics

JF - Materials Chemistry and Physics

IS - 1

ER -

Influence of the microstructural inhomogeneities on the martensite-to-austenite phase transformation temperatures in TiNiCu-based shape-memory alloys

Abstract

Keywords

ASJC Scopus subject areas

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