Effect of third element on properties of CuCr alloys produced by explosive compaction

作者：Zhaohui Gong · 发表于：Ordnance Material Science and Engineering · 年份：2001 · 研究领域：Vacuum and Plasma Arcs、Advanced materials and composites、Powder Metallurgy Techniques and Materials

The CuCr (the weight ratio of Cu and Cr was 1:1) and CuCr+5%(mass fraction)M (M=W, Fe) alloys powders were prepared by mechanical alloying .Then the CuCr contact materials for vacuum circuit breakers were made by explosive compaction . The effect of the third element on the properties of CuCr alloys was studied emphatically .The results showed that, the added W increased the density of CuCr alloys, but the added Fe lowered the density slightly ; the third element W or Fe can obviously increase the stiffness ,especially the Fe ; the added W and Fe lowered the conductivity , and the conductivity of CuCrM alloy was all lower .