采用真空熔炼炉制备了不同成分的Ti-Zr-Nb-Mo合金。借助光学显微镜（OM），X-射线衍射仪（XRD），万能试验机、电化学工作站对合金的组织与性能进行了研究。结果表明，随着Mo含量的增加，铸态Ti-Zr-Nb-Mo合金均为单一的β相，其衍射峰向高角度发生偏移，合金的平均晶粒尺寸先减小后增大。其中，铸态(TiZr)₈₀Nb₁₀Mo₁₀合金的平均晶粒尺寸最小。此外，随着Mo含量的增加，合金的强度和硬度显著提高，铸态(TiZr)₇₅Nb₁₀Mo₁₅合金的屈服强度和硬度最高，分别为887 MPa和471 HV。铸态(ZrTi)₈₀Nb₁₀Mo₁₀合金的自腐蚀电位为-261.1 mV，自腐蚀电流密度为354.5 nA•cm^-2，耐蚀性良好。

Ti-Zr-Nb-Mo alloys with different compositions were prepared by vacuum melting furnace. The microstructure and properties of the alloy were studied by means of optical microscope (OM), X-ray diffractometer (XRD), universal testing machine and electrochemical workstation. The results show that with the increase of Mo content, the as-cast Ti-Zr-Nb-Mo alloy is a single β phase, and the diffraction peak shifts to a higher angle, and the average grain size of the alloy decreases first and then increases. Among them, the average grain size of as-cast (TiZr)₈₀Nb₁₀Mo₁₀ alloy is the smallest. The yield strength and hardness of as-cast (TiZr)₇₅Nb₁₀Mo₁₅ alloy are the highest, 887 MPa and 471 HV, respectively, with the increase of Mo content. The corrosion resistance of as-cast (ZrTi)₈₀Nb₁₀Mo₁₀ alloy is good, self-corrosion potential and self-corrosion current density are -261.1 mV and 354.5 nA•cm^-2, respectively.