This precaution is not necessary, unless the alloy contains a metal requiring a high temperature for its fusion, as, for instance, copper or iron. In alloys oontaining tin, however, a laler of ...
IN studying heat-resistant iron-base and copper-base alloys at 750° C., we observed a pronounced increase of the rate of oxidation, when the atmosphere was contaminated by molybdenum trioxide ...
BHP Group, the world's top miner by market value, said it produced more copper and iron ore but less steelmaking coal last quarter compared to a year earlier. The Australia-based mining giant on ...