以新型医用钛合金Ti-35Nb 9Zr-6Mo-4Sn为对象,研究了该合金经固溶处理、85％冷变形和再结晶退火后的组织和力学性能.研究表明:该合金经固溶处理和85％冷变形后均由单一的β相构成.冷变形使合金强度显著上升,弹性模量降低,伸长率略有下降.经650℃再结晶退火后,合金仍由单一的β相构成,晶粒显著细化.随着退火时间的延长,缺陷减少,再结晶比例增高,合金的强度略有降低,弹性模量有所升高,塑性显著改善.形变率为85％的Ti-35Nb-9Zr-6Mo-4Sn合金经650℃退火30～60min后,合金的强度和伸长率显著优于Ti 6Al-4V,综合力学性能优异,适合作为医用种植材料.
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