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选择性激光烧结纯钛和Ti-6Al-4V的力学性能及其各向异性。

Mechanical Properties of Selective Laser Sintering Pure Titanium and Ti-6Al-4V, and Its Anisotropy.

作者信息

Harada Yuu, Ishida Yoshiki, Miura Daisuke, Watanabe Satoru, Aoki Harumi, Miyasaka Taira, Shinya Akikazu

机构信息

Department of Dental Materials Science, School of Life Dentistry at Tokyo, The Nippon Dental University, 1-9-20 Fujimi, Chiyoda-ku, Tokyo 102-8159, Japan.

Department of Life Science Dentistry, School of Life Dentistry at Tokyo, The Nippon Dental University, 1-9-20 Fujimi, Chiyoda-ku, Tokyo 102-8159, Japan.

出版信息

Materials (Basel). 2020 Nov 11;13(22):5081. doi: 10.3390/ma13225081.

DOI:10.3390/ma13225081
PMID:33187166
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7696245/
Abstract

Selective laser sintering (SLS) is being developed for dental applications. This study aimed to investigate the properties of Ti-6Al-4V and pure titanium specimens fabricated using the SLS process and compare them with casting specimens. Besides, the effect of the building direction on the properties of the SLS specimens was also investigated. Specimens were prepared by SLS using Ti-6Al-4V powder or pure titanium powder. Casting specimens were also prepared using Ti-6Al-4V alloys and pure titanium. The mechanical properties (tensile strength and elongation), physical properties (surface roughness, contact angle, and Vickers hardness); corrosion resistors (color difference and corrosion), and surface properties (chemical composition and surface observation) were examined. Both Ti-6Al-4V and pure titanium specimens produced using the SLS process had comparable or superior properties compared with casting specimens. In comparing the building directions, specimens fabricated horizontally to the printing platform showed the greatest tensile strength, and the surface roughness scanned in the horizontal direction to the platform showed the smallest. However, there was no significant effect on other properties. Thus, the SLS process with Ti-6Al-4V powder and pure titanium powder has great performance for the fabrication of dental prosthesis, and there is a possibility for it to take the place of conventional methods.

摘要

选择性激光烧结（SLS）技术正在牙科应用领域得到发展。本研究旨在探究采用SLS工艺制造的Ti-6Al-4V和纯钛试样的性能，并将其与铸造试样进行比较。此外，还研究了成型方向对SLS试样性能的影响。通过使用Ti-6Al-4V粉末或纯钛粉末，采用SLS工艺制备试样。同时，也使用Ti-6Al-4V合金和纯钛制备铸造试样。对其力学性能（抗拉强度和伸长率）、物理性能（表面粗糙度、接触角和维氏硬度）、耐腐蚀性能（色差和腐蚀情况）以及表面性能（化学成分和表面观察）进行了检测。与铸造试样相比，采用SLS工艺制造的Ti-6Al-4V和纯钛试样具有相当或更优的性能。在比较成型方向时，与打印平台水平成型的试样具有最大的抗拉强度，且在与平台水平方向扫描的表面粗糙度最小。然而，对其他性能没有显著影响。因此，使用Ti-6Al-4V粉末和纯钛粉末的SLS工艺在牙科假体制造方面具有优异性能，并且有可能取代传统方法。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2866/7696245/5600af8e9271/materials-13-05081-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2866/7696245/0821a881c79e/materials-13-05081-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2866/7696245/43f0d563e9f1/materials-13-05081-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2866/7696245/53fda8a2c31c/materials-13-05081-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2866/7696245/b06769911b58/materials-13-05081-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2866/7696245/80c2443f4109/materials-13-05081-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2866/7696245/9336a81fbb66/materials-13-05081-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2866/7696245/d0524ccdf0b1/materials-13-05081-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2866/7696245/3c0343513602/materials-13-05081-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2866/7696245/39501fd215cc/materials-13-05081-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2866/7696245/5600af8e9271/materials-13-05081-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2866/7696245/0821a881c79e/materials-13-05081-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2866/7696245/43f0d563e9f1/materials-13-05081-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2866/7696245/53fda8a2c31c/materials-13-05081-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2866/7696245/b06769911b58/materials-13-05081-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2866/7696245/80c2443f4109/materials-13-05081-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2866/7696245/9336a81fbb66/materials-13-05081-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2866/7696245/d0524ccdf0b1/materials-13-05081-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2866/7696245/3c0343513602/materials-13-05081-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2866/7696245/39501fd215cc/materials-13-05081-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2866/7696245/5600af8e9271/materials-13-05081-g010.jpg

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