摘要 |
FIELD: metallurgy.SUBSTANCE: proposed alloy comprises copper, tungsten, iridium at the following ratio of components, wt %: platinum - 95.0-95.5, tungsten - 0.01-3.0, iridium - 0.01-1.0, copper making the rest.EFFECT: more stable physical and mechanical properties of jewellery articles on the basis of 950-rate platinum.1 ex |