Abstract
This paper presents the age hardening behavior of solution treated metastable beta titanium alloy Ti-15V-3Cr-3Al-3Sn (Ti-15-3) as monitored by hardness measurements, tensile testing and microstructural examinations. The alloy was subjected to various single and duplex aging treatments. Single aging was carried out in the range from 200–550 °C for times up to 150 h. For the duplex aging first step aging was performed in two different ways. (i) 24 h at 250 °C (ii) 10 h at 300 °C ; second step aging was carried in the range 350–500 °C, for times up to 150 h. In general, duplex aging treatments resulted in higher hardness values compared to single step aging. Amongst all the duplex aging treatments, two aging treatments — 24 h / 250 °C followed by 8 h / 500 °C and 10 h / 300 °C followed by 10 h / 500 °C resulted in good balance of tensile strength and ductility; however, only the former treatment resulted in homogenous precipitation with no precipitate free zones.
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S.L. Nyakana et al, “Quick reference guide for β Titanium alloys in the 00s”. J. Mater. Eng. Perform. 14 (5) (2005), 799–811.
H.-E. Krugmann, J.K. Gregory. Microstructure/property relationships. In: Y.-W. Kim, R.R. Boyer, editors. Titanium aluminides and alloys, Warrendale: TMS 1991, p. 549–61.
L. Wagner, J.K. Gregory. Improvement of mechanical behavior in Ti-3Al-8V-6Cr-4Mo-4Zr by duplex aging. In: D. Eylon, R.R.Boyer, D.A. Koss, editors. Beta titanium alloys in the 1990’s, Warrendale: TMS; 1993, 199–209.
P. Schmidt et al, “Effect of Duplex Aging on the Initiation and Propagation of Fatigue Cracks in the Solute-rich Metastable β titanium alloy Ti 38–644”, Metal. Mater. Trans A 42A (2011), 2652–2667
T. Furuhara et al, “Microstructure Control by Thermomechanical Processing in β-15–3 alloy”. J. Mater. Process. Technol. 117 (2001), 318–323.
SanthoshRajaramanet al, “Studies on single and duplex aging of metastable beta titanium alloy Ti-15V-3Cr-3Al-3Sn”. Submitted to Mater and Design
A. El Chaikh et al, “Fatigue properties of duplex-aged Ti-38–644 metastable beta titanium alloy”. Procedia Engineering 2 (2010), 1973–1982.
E. Breslauer et al, “Relationship between microstructure and mechanical properties in metastable β titanium Ti-15–3 alloy”. Mater. Sei. Tech, 7 (1991), 441–446
Chun, Chang Hwan. Transformation process and microstructural instability in a beta titanium alloy, PhD Thesis work, University of Washington, 1988.
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© 2014 TMS (The Minerals, Metals & Materials Society)
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Rajaraman, S., Manivasagam, G., Kumar, V., Rao, M.N. (2014). Structure-Property Correlation in an Aircraft Sheet Metal Alloy Ti-15V-3Cr-3Al-3Sn. In: TMS 2014: 143rd Annual Meeting & Exhibition. Springer, Cham. https://doi.org/10.1007/978-3-319-48237-8_15
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DOI: https://doi.org/10.1007/978-3-319-48237-8_15
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-48593-5
Online ISBN: 978-3-319-48237-8
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