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Titanium Melts at 1670°C Density 4.51 g cm -3 80% of Ti used in aerospace Use restricted to < 400°C
body-centred cubic stable above 890 o C
hexagonal close-packed stable below 890 o C (c/a = 1.587)
roll-bonded, explosion-clad, loose-lined
Alloying stabilisers Mo, V, W stabilisers Al, O stabilisers (eutectoid) Cu, Mn, Fe, Ni, Co, H
fine hydrides near the surface of cold rolled titatnium. Nippon Steel
needle-like hydrides in zirconium, quenched into iced- brine from 800°C source unknown
Ti - 6Al - 2Sn - 4Zr - 2Mo solution hardening -stabiliser
alloys Ti - 6Al - 4V aluminium reduces density vanadium introduces both solid solution strengthen 1100 MPa, creep resistant at 300°C ductile-brittle transition
burn-resistant alloys Ti - 35V - 15Cr up to 510°C
Changing the Properties of Steels
EPNM 2012 Metallurgical Considerations in Hot Metalworking Bi-Metal Materials John Banker Vice President Customers & Technology Dynamic Materials Corporation.
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Understanding metals. Why are metals used to make these items?
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Chapter 7 “Ionic and Metallic Bonding”. Metallic Bonds are… l How metal atoms are held together in the solid. l Metals hold on to their valence electrons.
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Properties and Applications
Titanium and titanium alloys
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