Abstract
The tarnish-resisting properties of silver alloys containing a considerable quantity of zinc, tin, aluminium or cadmium (total amount being about 1_??_6%), were investigated. The addition of tin and zinc (4_??_6%) was found to hignly improve the tarnish-resisting properties of silver alloys, and also the oxide film rich in alumina formed by the preferential oxidation of aluminium containing silver alloys due to the heating in low pressure (0.01mmHg) was found to be protective against tarnishing. The solid solubility of beryllium and silicon in silver was also determined.
