Evening Republican, Volume 18, Number 158, Rensselaer, Jasper County, 7 July 1914 — ALLOYS OF HIGHEST VALUE [ARTICLE+ILLUSTRATION]

ALLOYS OF HIGHEST VALUE

Remarkable Products That Will Add _ the Commercial Wealth of the World.

Two new alloys that are in many respects remarkable are described by the American Machinist. One, called argental, and produced by the inventor of the McAdamite alloy, is a com-, pound of silver and aluminum. It has been put out to compete with silver, over which many superiorities are claimed for it, for industrial purposes. It can be cast rolled, spun, drawn into wire, takes a good polish and has greater strength than either aluminum or silver. It resembles silver in appearance, is not affected by nitric acid and does not tarnish on exposure to tbe alr. Its sfieclfic gravity is only one-third that of silver.

The o,ther alloy is a blend of cobalt and tin of about 40 to 60. This is said by the official chemist of the. American Institute of Metals to be especially resistant to acids, but owing to its brittleness it has little commercial value. Experiment*, however.

tend to show that when this is mixed with other metals, such as copper, for Instance, it produces a series of alloys which may be turned, forged and machined and have a high degree of chemical resistance.