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1. (WO2017156401) ALPHA-BETA TITANIUM ALLOY HAVING IMPROVED ELEVATED TEMPERATURE PROPERTIES AND SUPERPLASTICITY

Pub. No.:    WO/2017/156401    International Application No.:    PCT/US2017/021788
Publication Date: Fri Sep 15 01:59:59 CEST 2017 International Filing Date: Sat Mar 11 00:59:59 CET 2017
IPC: C22C 14/00
C22F 1/18
Applicants: TITANIUM METALS CORPORATION
Inventors: KOSAKA, Yoji
Title: ALPHA-BETA TITANIUM ALLOY HAVING IMPROVED ELEVATED TEMPERATURE PROPERTIES AND SUPERPLASTICITY
Abstract:
A high strength alpha-beta titanium alloy is provided that has improved high temperature oxidation resistance, high temperature strength and creep resistance, and improved superplasticity. In one form, the alloy comprises about 4.5 wt% to about 5.5 wt% aluminum, about 3.0 wt% to about 5.0 wt% vanadium, about 0.3 wt% to about 1.8 wt% molybdenum, about 0.2 wt% to about 1.2 wt% iron, about 0.12 wt% to about 0.25 wt% oxygen, about 0.10 wt% to about 0.40 wt% silicon, with the balance titanium and incidental impurities, with each incidental impurity being less than about 0.1 wt% and about 0.5 wt%, respectively, in total.