| 摘要 |
An article is formed of a metal alloy that includes the following constituents: (a) cobalt in an amount of between about 50.0% to about 51.0% by weight of the article; (b) tungsten in an amount of between about 21.0% to about 22.0% by weight of the article; (c) chromium in an amount of about 22.0% by weight of the article; (d) nickel in an amount of between about 2.5% to about 3.0% by weight; and (e) molybdenum in an amount of about 5.0% by weight. The article can be in the form of a jewelry article, such as a ring, a bracelet, a necklace, or an earring and can be formed by a shell casting process.
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