摘要
目的:检测钛铌锆锡(Ti-24Nb-4Zr-7.6Sn)合金铸件的机械性能,评价其作为口腔修复材料的可行性。方法:对钛铌锆锡合金铸件的机械性能、显微硬度进行检测,对剖面组织金相显微结构和断口形貌进行观察。结果:钛铌锆锡合金抗拉强度为681.7 MPa,屈服强度为410 MPa,延伸率为6%,弹性模量为42.1 GPa,维氏硬度为453 Hv;合金金相组织表现为细化的晶粒结构,合金断口呈典型的微孔聚合型断裂形貌。结论:钛铌锆锡合金机械性能能够满足制作口腔修复体的要求。
Objective：To study the mechanical properties of a new titanium alloy with lower elastic modulus for prosthodontic use. Methods：Samples of a newly developed Ti-Nb-Zr-Sn alloy with low elastic modulus were prepared. The microstructure, microhardness profile of the specimen cross section were measured by microhardness test meter and metallurgical microscope. Results：The data of the tensile strength（MPa） ,yield strength（MPa） , elongation （ % ） , elastic modulus （GPa） and microhardness （Hv） of Ti-Nb-Zr-Sn alloy were 681.7,410,6,42.1 and 453 respectively. The microstructure was with fine crystal grains. Conclusion： The microstructure and microhardness profile of the TiNb-Zr-Sn alloy may meet the requirement for dental applications.
出处
《实用口腔医学杂志》
CAS
CSCD
北大核心
2006年第1期57-59,共3页
Journal of Practical Stomatology
基金
国家自然科学基金(30471754号)项目资助
