Molar volumes of bcc, hcp, and orthorhombic Ti-base solid solutions at room temperature

Jia Yi Yan; G. B. Olson

doi:10.1016/j.calphad.2016.01.003

Molar volumes of bcc, hcp, and orthorhombic Ti-base solid solutions at room temperature

Jia Yi Yan^*, G. B. Olson

^*Corresponding author for this work

Materials Science and Engineering

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

12 Scopus citations

Abstract

The roomerature molar volumes of bcc (β), hcp (equilibrium α or martensitic α′), and orthorhombic (martensitic α′′) phases are modeled for a number of Ti-base solid solutions in the CALPHAD framework. The martensitic molar volume is continuous at the α′/α′′ transition composition. Hcp and orthorhombic structures are modeled separately, and the predicted martensitic structure is taken as the denser one.

Original language	English (US)
Pages (from-to)	152-158
Number of pages	7
Journal	Calphad: Computer Coupling of Phase Diagrams and Thermochemistry
Volume	52
DOIs	https://doi.org/10.1016/j.calphad.2016.01.003
State	Published - Mar 1 2016

Keywords

Martensite
Molar volume
Titanium alloys

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)
Computer Science Applications

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title = "Molar volumes of bcc, hcp, and orthorhombic Ti-base solid solutions at room temperature",

abstract = "The roomerature molar volumes of bcc (β), hcp (equilibrium α or martensitic α′), and orthorhombic (martensitic α′′) phases are modeled for a number of Ti-base solid solutions in the CALPHAD framework. The martensitic molar volume is continuous at the α′/α′′ transition composition. Hcp and orthorhombic structures are modeled separately, and the predicted martensitic structure is taken as the denser one.",

keywords = "Martensite, Molar volume, Titanium alloys",

author = "Yan, {Jia Yi} and Olson, {G. B.}",

note = "Funding Information: This work is sponsored by the US Office of Naval Research through the Cyberalloys 2020 Project (No. N00014-10-1-0504 ), coordinated by Dr. William Mullins. QuesTek Innovations LLC is thanked for the arc-melting facility. Sergio Williams contributed to part of the lattice parameter measurements. This work made use of the J.B. Cohen X-Ray Diffraction Facility supported by the MRSEC Program of the National Science Foundation ( DMR-1121262 ) at the Materials Research Center of Northwestern University. ",

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AU - Yan, Jia Yi

AU - Olson, G. B.

N1 - Funding Information: This work is sponsored by the US Office of Naval Research through the Cyberalloys 2020 Project (No. N00014-10-1-0504 ), coordinated by Dr. William Mullins. QuesTek Innovations LLC is thanked for the arc-melting facility. Sergio Williams contributed to part of the lattice parameter measurements. This work made use of the J.B. Cohen X-Ray Diffraction Facility supported by the MRSEC Program of the National Science Foundation ( DMR-1121262 ) at the Materials Research Center of Northwestern University.

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N2 - The roomerature molar volumes of bcc (β), hcp (equilibrium α or martensitic α′), and orthorhombic (martensitic α′′) phases are modeled for a number of Ti-base solid solutions in the CALPHAD framework. The martensitic molar volume is continuous at the α′/α′′ transition composition. Hcp and orthorhombic structures are modeled separately, and the predicted martensitic structure is taken as the denser one.

AB - The roomerature molar volumes of bcc (β), hcp (equilibrium α or martensitic α′), and orthorhombic (martensitic α′′) phases are modeled for a number of Ti-base solid solutions in the CALPHAD framework. The martensitic molar volume is continuous at the α′/α′′ transition composition. Hcp and orthorhombic structures are modeled separately, and the predicted martensitic structure is taken as the denser one.

KW - Martensite

KW - Molar volume

KW - Titanium alloys

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