【摘要】 研究了Cu 0 .3Cr 0 .15Zr 0 .0 5Mg合金时效温度、时效时间和时效前变形量对导电率和显微硬度的影响。结果表明 ,合金 92 0℃固溶后在 4 5 0℃时效可以获得较高的硬度 ,在 6 0 0℃时效可以获得较高的导电率 ;时效前冷变形可以加速第二相的析出 ,大幅度提高合金的导电率 ,合金固溶并 6 0 %形变后在 5 0 0℃时效 0 .5h导电率可达 72 .0 2 %IACS ,而固溶后直接时效仅为 5 1.79%IACS。更多还原

【Abstract】 The effects of aging and cold deforming on micro hardness and electrical conductivity of Cu Cr Zr alloy are studied in this paper. The results show that for the alloy solution treated at 920℃ for 1 hour,the higher micro hardness can be obtained when aged at 450℃ and the higher conductivity can be obtained when aged at 600℃ and cold deforming before aging is beneficial to improvement of the conductivity for it will accelerate the precipitation of the secondary phase of the alloy.Compared with 51.79%IACS as aged at 500℃ for 0.5h, the conductivity of the alloy 60% deformed reaches 72.02%IACS with the same aging treatment.更多还原