密封用铜垫片氧化过程分析及合金元素对其抗氧化性能的影响

摘要

铜在高温条件下极易氧化,而铜的氧化物不具备保护性,当向纯铜中加入合金元素后将不同程度的提高铜的抗氧化性,延长其使用寿命.该文主要研究了6 N铜在673 K不同氧化时间的表面形貌及在573 K-873 K温度范围内的氧化动力学曲线,同时介绍了不同合金元素对铜高温抗氧化性能的影响.%Copper is easily oxidized under high temperature conditions,but copper oxides are not protective. The addition of alloying elements to pure copper will increase the oxidation resistance of copper in different degrees and extend its service life. In this paper, the surface morphology of 6 N copper at different oxidation times at 673 K and the oxidation kinetics curves in the temperature range of 573 K-873 K are studied. At the same time, the influence of different alloying elements on the high temperature oxidation resistance of copper is also introduced.