THE TENTATIVE TITANIUM-SILVER BINARY SYSTEM
WRIGHT AIR DEVELOPMENT CENTER WRIGHT-PATTERSON AFB OH
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Silver is a beta former when alloyed in small amounts with titanium. There is a large range of solubility of silver in alpha titanium and it reaches a maximum of 9 1 wt. silver at 1560 - 7 F, at which temperature an eutectoid reaction, beta TiAg, occurs at 17 0.5 wt. silver. The beta solid solubility increases to 30.5 - 1 wt. silver at 1903 - 5 F. Contrary to general opinion, the existence of the compound TiAg 69.25 wt. Ag has been established. It is formed at 1903 - 5 F by the following peritectic reaction beta Liq. in balance with TiAg. The composition limits of the compound have, as yet, not been determined,. however, the compound field appears to be narrow from preliminary observations. Titanium is soluble in silver in an amount of less than 0.5 wt. as two phases are present in 99.5 wt. silver as-cast alloys.
- Metallurgy and Metallography