中文摘要：

目的：评价微量元素Ce对牙科用Ti-Mo合金机械性能的影响。方法：采用电弧熔炼及吸铸方法制备含微量元素Ce的牙科用Ti-Mo合金Ti90-XMo10CeX（Ce质量分数x=0、0.3、0.6、0.8、1.0、2.0）,通过物相分析、压缩性能测定等,研究微量元素Ce对Ti-10Mo合金机械性能的影响。结果：该系列合金由β主相及少量的α相组成;少量元素Ce的加入明显地提高了合金的抗压强度,从未添加Ce样品的1660MPa提高到x=0.6样品的2120MPa;改善了合金的塑性,压缩率从33.0%升高到43.0%,而压缩弹性模量略为降低。合金的维氏硬度在320-342之间。结论：添加适量Ce的Ti-10Mo合金,在牙科修复中有应用前景。

英文摘要：

Objective： To evaluate effects of Ce addition on the mechanical properties of Ti-Mo dental alloy. nethods：A series of Ti-Mo with Ce addition dental alloys Ti90-xMo10Cex （ X =0, 0.3, 0.6, 0.8, 1.0 and 2.0） （weight fraction） were prepared by arc inching method. The effects of Ce addition on the mechanical properties of the alloy were investigated. Results：Experimental results showed that the alloy consists of B phase mainly with a small amount of α phase. A small amount of Ce addition could enhance the compressive strength of the alloy obviously, from 1 660 MPa of the sample without Ce, to 2 120 MPa of the sample Ti90-0.6Mo10Ce0.6. The compressive ductility of the alloy can also be improved effectively from 33.0% to 43.0%. The elastic modulus of the alloy was decreased slightly with Ce addition. The Vick hardness of the alloys was found to be between 320 and 342. Conclusion：The Ti-10Mo alloy with small amount of Ce addition may be used as dental material.