锌铝合金低温冲击韧性及耐磨性研究  

Research on Low-temperature Impact Toughness and Anti-abrasive Performance of Aluminum Zinc-based Alloy

作　　者：董长胜[1] 张伟明[1] 张毅[1] 张万才[1] 曹江涛[1] 赵均红[1] 杨增光[1] 

机构地区：[1]中国电子科技集团公司第五十四研究所,石家庄050081

出　　处：《材料导报（纳米与新材料专辑）》2014年第2期497-500,共4页

摘　　要：锌铝合金因其良好的耐磨性被用作制造各种耐磨器件。研究表明,锌铝合金的低温冲击韧性随温度的降低而降低,与室温相比,-60℃时该材料的冲击韧性值下降约39%,其塑性-脆性转变温度在-30℃附近。实验室条件下的耐磨损试验表明,锌铝合金的耐磨性较原来的锡青铜材料提高了3倍。实际装机跑合试验表明,锌铝合金的耐磨性较原来的锡青铜材料提高了1.2倍,接触面积减少了36%,这为锌铝合金在卫星天线野外环境的使用提供了可能性。High aluminium zinc-based alloy has been widely used as new substitute materials of tin bronze for its well anti-abrasive performance. The possibility that high aluminium zinc-based alloy can be used on large antennas at outdoors has been discussed. The research showed that low-temperature impact toughness of high aluminium zincbased alloy reduced as the temperature go down. And low-temperature （20 ℃） impact toughness decreased by 39%, compared with the temperature of -60 ℃. The plasticity-brittleness transition temperature is about -30℃. The experiment exhibited loss weight of tin bronze is 3 times than the high aluminium zinc-based alloy. In the operating condition, loss weight of tin bronze is still 1.2 times than the high aluminium zinc-based alloy, and contact area reduce 36%. This research offered an opportunity for satellite antenna used in the outside.

关 键 词：低温冲击韧性 锌铝合金 锡青铜 耐磨损 

分 类 号：TG174.461[金属学及工艺—金属表面处理]