| 摘要 |
PROBLEM TO BE SOLVED: To provide a wear resistant piston ring made of an iron base alloy excellent in high temp. wear resistance and thermal conductivity and small in attackability to the other material. SOLUTION: This wear resistant piston ring has a compsn. contg., by weight, 11 to 40% Cu, 0.5 to 10% Ni and 0.001 to 0.8% C and furthermore contg., at need, 0.1 to 15% Mo and/or 0.1 to 10% Cr, and the balance Fe with inevitable impurities and a structure obtd. by coupling an Fe base alloy phase consisting essentially of Fe with a Cu base alloy phase consisting essentially of Cu.
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