The castability of chromium-cobait base metal alloys when compared to gold based noble metal alloys is_______________?
Correct answer: B. Less
- A. More
- B. Less
- C. Equal
- D. Depends on the alloy type
Explanation
Chromium-cobalt base-metal alloys generally have poorer castability than gold alloys because they have higher melting temperatures, greater stiffness, and more difficult mold filling. Gold alloys flow more readily into fine mold details.
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