| 摘要 |
FIELD: metallurgy. ^ SUBSTANCE: invention refers to metallurgy and can be implemented for fabricating jewellery items, awarding badges and coins. To upgrade strength of alloy it has the following composition, wt %: gold 58.0-59.0; silver 7.5-8.5, boron 0.005-0.01, titanium 0.1-0.15, zinc 0.7-0.9, aluminium 0.03 or 0.07 or 0.09, nickel 0.1-0.15, tin 0.01-0.02, silicon 0.03-0.09, copper - the rest. Ultimate tensile strength is 55-57 kg/mm2. ^ EFFECT: upgraded strength of alloy. ^ 1 tbl |
