材料科学
选择性激光熔化
钛合金
溅射
表面粗糙度
合金
Crystal(编程语言)
制作
生物相容性
钛
溅射沉积
激光器
衍射
光学
光电子学
复合材料
冶金
微观结构
纳米技术
薄膜
替代医学
程序设计语言
病理
物理
医学
计算机科学
作者
Yuji Sato,Masahiro Tsukamoto,Yorihiro Yamashita,Kensuke Yamashita,Shuto Yamagata,Ritsuko Higashino,Nobuyuki Abe
摘要
Titanium alloy (Ti-6Al-4V) ,which has a crystal orientation of α+β type, are clinical employed for an artificial bone and a hard tissue implant for human body because of light, nonmagnetic, weather resistance and biocompatibility, but it is difficult to form a complicated structure, as a bionic structure, owing to a difficult-to-cut machine material. Thus, titanium alloy plates were fabricated by selective laser melting (SLM) in vacuum. Melting and solidification process were captured with high speed video camera, it was found that sputter was depended on the surface roughness. The sputter-less fabrication for SLM in vacuum was developed to minimize the surface roughness to 0.6μm at the laser scanning speed of 10mm/s. It was also determined that crystal orientation was evaluated with X-ray diffraction (XRD). It was recorded from the powder peaks of α (1011), α (0002), α (1010), and α (1012) that the crystal orientation is composed mainly of martensitic alpha by XRD analysis. Diffraction peaks corresponding to β (110) were detected in vacuum SLM processed samples.
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