Tailoring the Bain strain of martensitic transformations in Ti-Nb alloys by controlling the Nb content

Matthias Bönisch; Thomas Waitz; Mariana Calin; Werner Skrotzki; Juergen Eckert

doi:10.1016/j.ijplas.2016.07.010

Tailoring the Bain strain of martensitic transformations in Ti-Nb alloys by controlling the Nb content

Matthias Bönisch (Corresponding author)
, Thomas Waitz
, Mariana Calin
, Werner Skrotzki
, Juergen Eckert

Physics of Nanostructured Materials

Publications: Contribution to journal › Article › Peer Reviewed

Abstract

The lattice (Bain) strain and corresponding volume change of a martensitic phase transformation are key parameters that determine the formation of a self-accommodated martensitic microstructure and related functional properties. Based on experimentally determined lattice parameters of the cubic austenite beta and of the hexagonal and orthorhombic martensites alpha' and alpha '', the lattice strain and the volume change related to the beta -> alpha'/alpha '' martensitic transformations in Ti-Nb alloys are analyzed in dependence of composition. The lattice strains of the transformation beta -> alpha '' increase with decreasing Nb content but those of beta -> alpha' are not affected by the amount of Nb. Depending on the composition, both a volume dilatation and contraction is encountered. It is proposed that the volume change plays a decisive role in determining the lattice structure of the martensitic phase that evolves when the transformation is thermally induced.

Original language	English
Pages (from-to)	190-202
Number of pages	13
Journal	International Journal of Plasticity
Volume	85
DOIs	https://doi.org/10.1016/j.ijplas.2016.07.010
Publication status	Published - Oct 2016

Funding

Stimulating discussions with B. Appolaire, E. Aeby-Gautier and M. Zehetbauer are gratefully acknowledged. This work was financially supported by the European Commission within FP7/2007-13 under the grant agreement no. 264635 (BioTiNet-ITN). It further benefited from financial support by the German Science Foundation within SFB/Transregio 79.

Austrian Fields of Science 2012

103018 Materials physics

Keywords

Phase transformation
Elastic material
Characteristics
Volume change
SHAPE-MEMORY ALLOYS
HYDROSTATIC-PRESSURE
PHASE-TRANSFORMATION
PLASTIC-DEFORMATION
ALPHA''-MARTENSITE
THERMAL-EXPANSION
BASE ALLOYS
BETA-PHASE
D-METALS
TITANIUM
A. Phase transformation
B. Elastic material
C. Characteristics

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10.1016/j.ijplas.2016.07.010

Cite this

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title = "Tailoring the Bain strain of martensitic transformations in Ti-Nb alloys by controlling the Nb content",

abstract = "The lattice (Bain) strain and corresponding volume change of a martensitic phase transformation are key parameters that determine the formation of a self-accommodated martensitic microstructure and related functional properties. Based on experimentally determined lattice parameters of the cubic austenite beta and of the hexagonal and orthorhombic martensites alpha' and alpha '', the lattice strain and the volume change related to the beta -> alpha'/alpha '' martensitic transformations in Ti-Nb alloys are analyzed in dependence of composition. The lattice strains of the transformation beta -> alpha '' increase with decreasing Nb content but those of beta -> alpha' are not affected by the amount of Nb. Depending on the composition, both a volume dilatation and contraction is encountered. It is proposed that the volume change plays a decisive role in determining the lattice structure of the martensitic phase that evolves when the transformation is thermally induced.",

keywords = "Phase transformation, Elastic material, Characteristics, Volume change, SHAPE-MEMORY ALLOYS, HYDROSTATIC-PRESSURE, PHASE-TRANSFORMATION, PLASTIC-DEFORMATION, ALPHA''-MARTENSITE, THERMAL-EXPANSION, BASE ALLOYS, BETA-PHASE, D-METALS, TITANIUM, A. Phase transformation, B. Elastic material, C. Characteristics",

author = "Matthias B{\"o}nisch and Thomas Waitz and Mariana Calin and Werner Skrotzki and Juergen Eckert",

year = "2016",

month = oct,

doi = "10.1016/j.ijplas.2016.07.010",

language = "English",

volume = "85",

pages = "190--202",

journal = "International Journal of Plasticity",

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T1 - Tailoring the Bain strain of martensitic transformations in Ti-Nb alloys by controlling the Nb content

AU - Bönisch, Matthias

AU - Waitz, Thomas

AU - Calin, Mariana

AU - Skrotzki, Werner

AU - Eckert, Juergen

PY - 2016/10

Y1 - 2016/10

N2 - The lattice (Bain) strain and corresponding volume change of a martensitic phase transformation are key parameters that determine the formation of a self-accommodated martensitic microstructure and related functional properties. Based on experimentally determined lattice parameters of the cubic austenite beta and of the hexagonal and orthorhombic martensites alpha' and alpha '', the lattice strain and the volume change related to the beta -> alpha'/alpha '' martensitic transformations in Ti-Nb alloys are analyzed in dependence of composition. The lattice strains of the transformation beta -> alpha '' increase with decreasing Nb content but those of beta -> alpha' are not affected by the amount of Nb. Depending on the composition, both a volume dilatation and contraction is encountered. It is proposed that the volume change plays a decisive role in determining the lattice structure of the martensitic phase that evolves when the transformation is thermally induced.

AB - The lattice (Bain) strain and corresponding volume change of a martensitic phase transformation are key parameters that determine the formation of a self-accommodated martensitic microstructure and related functional properties. Based on experimentally determined lattice parameters of the cubic austenite beta and of the hexagonal and orthorhombic martensites alpha' and alpha '', the lattice strain and the volume change related to the beta -> alpha'/alpha '' martensitic transformations in Ti-Nb alloys are analyzed in dependence of composition. The lattice strains of the transformation beta -> alpha '' increase with decreasing Nb content but those of beta -> alpha' are not affected by the amount of Nb. Depending on the composition, both a volume dilatation and contraction is encountered. It is proposed that the volume change plays a decisive role in determining the lattice structure of the martensitic phase that evolves when the transformation is thermally induced.

KW - Phase transformation

KW - Elastic material

KW - Characteristics

KW - Volume change

KW - SHAPE-MEMORY ALLOYS

KW - HYDROSTATIC-PRESSURE

KW - PHASE-TRANSFORMATION

KW - PLASTIC-DEFORMATION

KW - ALPHA''-MARTENSITE

KW - THERMAL-EXPANSION

KW - BASE ALLOYS

KW - BETA-PHASE

KW - D-METALS

KW - TITANIUM

KW - A. Phase transformation

KW - B. Elastic material

KW - C. Characteristics

UR - https://www.scopus.com/pages/publications/84983261965

U2 - 10.1016/j.ijplas.2016.07.010

DO - 10.1016/j.ijplas.2016.07.010

M3 - Article

SN - 0749-6419

VL - 85

SP - 190

EP - 202

JO - International Journal of Plasticity

JF - International Journal of Plasticity

ER -

Tailoring the Bain strain of martensitic transformations in Ti-Nb alloys by controlling the Nb content

Abstract

Funding

Austrian Fields of Science 2012

Keywords

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