School of Digital Media and Design, Hangzhou Dianzi University, Hangzhou, 310018, China.
Hunan Province Key Laboratory of Safety Design and Reliability Technology for Engineering Vehicle, Changsha University of Science & Technology, Changsha, 410114, China.
J Nanosci Nanotechnol. 2020 Mar 1;20(3):1605-1612. doi: 10.1166/jnn.2020.17340.
The present study focuses on the microstructural and bioactive properties evolution in selective laser melting (SLM) titanium alloys. We have applied cross-scan strategy for improving mechanical properties and lower elastic modulus of SLMed Ti-20Mg-5Ta alloys which has been shown to be altering the microstructure and refining the grain size. The cross-scan strategy can refine the microstructure and induce various deformation textures in contrast to the conventional scan strategy. The microstructures of Ti-20Mg-5Ta alloys indicate that the cross-scan strategy will yield the best mechanical properties and lower elastic modulus. The corrosion behavior of the Ti-20Mg-5Ta alloys was studied during immersion in an acellular simulated body fluid (SBF) at 37±0.50 °C for 28 days. Both the mechanical and bioactive properties showed that the novel Ti-20Mg-5Ta alloys should be ideal for bone implants.
本研究关注选择性激光熔化（SLM）钛合金的微观结构和生物活性性能演变。我们采用了交叉扫描策略来提高机械性能和降低 SLMed Ti-20Mg-5Ta 合金的弹性模量，这已经被证明可以改变微观结构和细化晶粒尺寸。与传统的扫描策略相比，交叉扫描策略可以细化微观结构并诱导各种变形织构。Ti-20Mg-5Ta 合金的微观结构表明，交叉扫描策略将产生最佳的机械性能和更低的弹性模量。在 37±0.50°C 的无细胞模拟体液（SBF）中浸泡 28 天后，研究了 Ti-20Mg-5Ta 合金的腐蚀行为。机械和生物活性性能均表明，新型 Ti-20Mg-5Ta 合金非常适合骨植入物。
