Compositional variability in gum metal

R.J. Talling; R.J. Dashwood; M. Jackson; D. Dye

doi:10.1016/j.scriptamat.2009.02.044

Compositional variability in gum metal

R.J. Talling, R.J. Dashwood, M. Jackson, D. Dye

Vice-Chancellor's Office (VCO)

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

43 Citations (Scopus)

Abstract

β-Ti alloy Gum metals were defined as Ti–24(Nb + Ta + V)–(Zr,Hf)–O (at.%) by Saito et al. [T. Saito et al., Science 300 (2003) 464]. Previous work has focused on compositions near Ti–23Nb–0.7Ta–2Zr–O. Here, Ti–24V–28Zr–2O was examined; similar single-crystal elastic constants were observed. However, the alloy was found to be brittle and did not form α″ during loading, unlike the Ti–Nb alloy. V-rich body-centred cubic precipitates were also observed. Therefore the β stability parameters e/a, Bo and Md alone are insufficient to define the compositional range of Gum metals.

Original language	English
Pages (from-to)	1000-1003
Number of pages	4
Journal	Scripta Materialia
Volume	60
Issue number	11
Early online date	27 Feb 2009
DOIs	https://doi.org/10.1016/j.scriptamat.2009.02.044
Publication status	Published - Jun 2009

Keywords

Gum metal
Martensitic phase transformation
Titanium alloys
Synchrotron radiation
Ab initio electron theory

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10.1016/j.scriptamat.2009.02.044

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title = "Compositional variability in gum metal",

abstract = "β-Ti alloy Gum metals were defined as Ti–24(Nb + Ta + V)–(Zr,Hf)–O (at.%) by Saito et al. [T. Saito et al., Science 300 (2003) 464]. Previous work has focused on compositions near Ti–23Nb–0.7Ta–2Zr–O. Here, Ti–24V–28Zr–2O was examined; similar single-crystal elastic constants were observed. However, the alloy was found to be brittle and did not form α″ during loading, unlike the Ti–Nb alloy. V-rich body-centred cubic precipitates were also observed. Therefore the β stability parameters e/a, Bo and Md alone are insufficient to define the compositional range of Gum metals.",

keywords = "Gum metal, Martensitic phase transformation, Titanium alloys, Synchrotron radiation, Ab initio electron theory",

author = "R.J. Talling and R.J. Dashwood and M. Jackson and D. Dye",

year = "2009",

month = jun,

doi = "10.1016/j.scriptamat.2009.02.044",

language = "English",

volume = "60",

pages = "1000--1003",

journal = "Scripta Materialia",

publisher = "Elsevier",

number = "11",

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TY - JOUR

T1 - Compositional variability in gum metal

AU - Talling, R.J.

AU - Dashwood, R.J.

AU - Jackson, M.

AU - Dye, D.

PY - 2009/6

Y1 - 2009/6

N2 - β-Ti alloy Gum metals were defined as Ti–24(Nb + Ta + V)–(Zr,Hf)–O (at.%) by Saito et al. [T. Saito et al., Science 300 (2003) 464]. Previous work has focused on compositions near Ti–23Nb–0.7Ta–2Zr–O. Here, Ti–24V–28Zr–2O was examined; similar single-crystal elastic constants were observed. However, the alloy was found to be brittle and did not form α″ during loading, unlike the Ti–Nb alloy. V-rich body-centred cubic precipitates were also observed. Therefore the β stability parameters e/a, Bo and Md alone are insufficient to define the compositional range of Gum metals.

AB - β-Ti alloy Gum metals were defined as Ti–24(Nb + Ta + V)–(Zr,Hf)–O (at.%) by Saito et al. [T. Saito et al., Science 300 (2003) 464]. Previous work has focused on compositions near Ti–23Nb–0.7Ta–2Zr–O. Here, Ti–24V–28Zr–2O was examined; similar single-crystal elastic constants were observed. However, the alloy was found to be brittle and did not form α″ during loading, unlike the Ti–Nb alloy. V-rich body-centred cubic precipitates were also observed. Therefore the β stability parameters e/a, Bo and Md alone are insufficient to define the compositional range of Gum metals.

KW - Gum metal

KW - Martensitic phase transformation

KW - Titanium alloys

KW - Synchrotron radiation

KW - Ab initio electron theory

U2 - 10.1016/j.scriptamat.2009.02.044

DO - 10.1016/j.scriptamat.2009.02.044

M3 - Article

VL - 60

SP - 1000

EP - 1003

JO - Scripta Materialia

JF - Scripta Materialia

IS - 11

ER -

Compositional variability in gum metal

Abstract

Keywords

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