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As the material and manufacturing cost of coins approached or even exceeded the face value of coins over the last 10years, the needs to develop less-expensive alloys to replace the current coinage materials increased. The objective of this study is to develop new cost-effective alloys with the same vending machine acceptability and similar color tone as Cu–25%Ni coins. Cu–Zn–Ni–Fe and Cu–Zn–Ni–Fe–Cr...
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