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采用WS-4型非自耗电弧炉制备了含Cu的牙科用Ti-10Zr-xCu合金系,通过物相分析、显微组织观察、硬度和磨损性能测试等手段,研究Cu元素对牙科用Ti-10Zr合金组织和耐磨性能的影响。结果表明,该系列合金由α主相和少量的β相组成,随Cu含量的增加,合金中β相比例增大,且细晶强化作用逐渐加强。合金的维氏硬度从230 MPa增加到290 MPa,比Ti-10Zr合金高5%～26%。同时,随Cu含量增加,合金粘着磨损、磨粒磨损作用逐渐减弱,耐磨性显著提高。当铜含量为3%时,合金具有最好的综合力学性能。
The dental Ti-10Zr-xCu alloy containing Cu was prepared by non-consumable electric arc furnace (WS-4). The effects of Cu on dental properties were studied by means of phase analysis, microstructure observation, hardness and wear resistance test. Ti-10Zr alloy structure and wear resistance. The results show that the alloy consists of α main phase and a small amount of β phase. With the increase of Cu content, the proportion of β phase in the alloy increases and the fine grain strengthening effect gradually strengthens. Vickers hardness of the alloy increased from 230 MPa to 290 MPa, 5% to 26% higher than the Ti-10Zr alloy. At the same time, with the increase of Cu content, the wear resistance of the alloy is weakened and the abrasive wear action is gradually weakened, and the wear resistance is significantly improved. When the copper content is 3%, the alloy has the best comprehensive mechanical properties.