METHOD FOR PRODUCING A COPPER ALLOY HAVING A HIGH DAMPING CAPACITY

摘要

The invention relates to a copper alloy which is used for mechanically charged components which, during operation, are offset by vibrations and/or impacts or produce the same, and have particularly good mechanical damping. The composition of said copper alloy depends upon the use or working temperature of the component. Said copper alloy consists of 2 - 12 wt.- % manganese, 5 - 14 wt.- % aluminium and individually or in total 0 - 18 wt.- % of one or several elements, iron, cobalt, zinc, silicon, vanadium, niobium, molybdenum, chromium, tungsten, beryllium, lithium, yttrium, cerium, scandium, calcium, titanium, phosphorous, zirconium, boron, nitrogen, carbon, whereby each element does not contain more that 6 % and 100wt.- % copper. The alloy is obtained by adapting the martensite-austenitic conversion temperatures or the associated intervals M_S - M_F and/or A_S A_F to a predetermined use or working temperature of the component by variating the weight proportion of the above-mentioned alloy component during melting thereof. The damping can reach above 70 %.