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首页> 外文期刊>Journal of Materials Engineering and Performance >High Strength, Utilizable Ductility and Electrical Conductivity in Cold Rolled Sheets of Cu-Cr-Zr-Ti Alloy
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High Strength, Utilizable Ductility and Electrical Conductivity in Cold Rolled Sheets of Cu-Cr-Zr-Ti Alloy

机译：Cu-Cr-Zr-Ti合金冷轧板中的高强度，可利用的延展性和导电性

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摘要

The microstructure and properties of Cu-0.5Cr-0.03Zr-0.04Ti (wt.%) alloy subjected to cold rolling and aging were investigated using hardness and electrical conductivity measurement, tensile testing, and transmission electron microscopy. Plates subjected to 85% reduction in thickness showed significant improvement in the strength compared to solution treated and aged condition. By proper selection of aging temperature, ductility could be significantly improved without reduction in the strength. Aging of the cold rolled sheet at 420 A degrees C for 1 h yielded an ultimate tensile strength and yield strength of 540 and 460 MPa, respectively. On the other hand, total and uniform elongation was 16 and 12%, respectively, with an electrical conductivity of 65 %IACS. The combination of properties achieved after cold rolling and aging is attributed to the higher dislocation density, ultrafine grains and nano-sized chromium precipitates.
机译：使用硬度和电导率测量，拉伸试验和透射电子显微镜研究Cu-0.5Cr-0.03亿-0.04Ti（wt。％）合金的Cu-0.5Cr-0.03亿-0.04Ti（wt。％）合金。 与溶液处理和老化条件相比，厚度降低85％的平板显示出显着的强度。 通过正确选择老化温度，可以显着提高延展性而不会降低强度。 冷轧板在420℃下老化1小时，产生极限拉伸强度，分别为540和460MPa的屈服强度。 另一方面，总和均匀的伸长率分别为16和12％，电导率为65％IACS。 冷轧和老化后达到的性能的组合归因于较高的位错密度，超细晶粒和纳米尺寸的铬沉淀物。

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