铸造技术2025，Vol.46Issue(2)：144-152,9.DOI:10.16410/j.issn1000-8365.2025.4235
激光定向能量沉积Ti-18Zr-13Mo亚稳β生物钛合金组织与性能研究
Study of the Microstructure and Properties of Ti-18Zr-13Mo Metastable β Biomedical Titanium Alloys by Laser Directed Energy Deposition
摘要
Abstract
Titanium and titanium alloys are widely used in aerospace,machinery manufacturing,biomedical and other fields because of their excellent properties,such as high specific strength,good corrosion resistance and low density.Compared with traditional 316L stainless steel and cobalt-chromium alloys,titanium alloys have relatively lower elastic moduli,excellent corrosion resistance and biocompatibility,gradually attracting the attention of industry personnel.In this work,a Ti-18Zr-13Mo(wt.%)metastable β-Ti alloy was successfully fabricated via laser directed energy deposition based on the mixed element method.The alloy is composed of β phase,with an elastic modulus of 73.5 GPa,a yield strength of 842.2 MPa,and an elongation rate of 20%in the deposition state.The elastic modulus of the alloy can be further reduced to 69.5 GPa by solution treatment.Compared with Ti6Al4V alloys,Ti-18Zr-13Mo alloys can effectively reduce the occurrence of the"stress shielding"phenomenon of implants and can provide sufficient strength support.Therefore,the Ti-18Zr-13Mo alloy is a suitable metastable β biomedical titanium alloy material for bone implants.关键词
激光定向能量沉积/亚稳β生物钛合金/弹性模量/屈服强度Key words
laser-directed energy deposition/metastable β biomedical titanium alloy/elasticity modulus/yield strength分类
矿业与冶金引用本文复制引用
王林增,于君,林鑫,龙振宇,邬良怡,牛毅豪..激光定向能量沉积Ti-18Zr-13Mo亚稳β生物钛合金组织与性能研究[J].铸造技术,2025,46(2):144-152,9.基金项目
国家自然科学基金(52105401) （52105401）
唐都医院重大科研项目(2022TDGS005) （2022TDGS005）
凝固技术国家重点实验室自主课题(G8QT0526) （G8QT0526）
