溅射法制备的316L不锈钢表面钛基合金涂层的耐磨性能：与生物医学植入物的相关性
Wear performance of Ti-based alloy coatings on 316L SS fabricated with the sputtering method: Relevance to biomedical implants.
作者信息
Murugan Shunmuga Priyan, George Godwin, Jaisingh Julyes
机构信息
Department of Mechanical Engineering, Loyola Institute of Technology and Science, Thovalai, Tamil Nadu, India.
出版信息
Biomed Mater Eng. 2024;35(3):219-235. doi: 10.3233/BME-230127.
BACKGROUND
This investigation was conducted to encapsulate 316L SS with a Ti-based alloy coating.
OBJECTIVE
The aim was to fabricate a coating using TiN, TiO2, and TiCoCr powders on 316L SS through the physical vapor deposition (PVD) sputtering process.
METHODS
The powders were consecutively coated on 316L SS through the PVD sputtering process with coating durations of 30, 60, and 90 min. Further microhardness, surface roughness, microabrasion, and adhesion strength tests were also carried out.
RESULTS
A 60% improvement in abrasion resistance was observed in TiCoCr-coated samples compared to the uncoated substrate. The X-ray diffraction results confirmed the optimal formation of Ti alloy coatings with corresponding orientation over the SS substrates. Moreover, TiCoCr with a 90 min coating duration had much better surface characteristics than TiO2 and TiN.
CONCLUSION
The 90 min coating duration should be optimal for coating in steel for bio-implants.
背景
进行本研究是为了用钛基合金涂层包覆316L不锈钢。
目的
旨在通过物理气相沉积（PVD）溅射工艺，在316L不锈钢上使用氮化钛、二氧化钛和钛钴铬粉末制备涂层。
方法
通过PVD溅射工艺将粉末依次涂覆在316L不锈钢上，涂层持续时间分别为30、60和90分钟。还进行了进一步的显微硬度、表面粗糙度、微磨损和附着力强度测试。
结果
与未涂层的基材相比，涂覆钛钴铬的样品耐磨性提高了60%。X射线衍射结果证实了在不锈钢基材上形成了具有相应取向的钛合金涂层。此外，涂层持续时间为90分钟的钛钴铬涂层的表面特性比二氧化钛和氮化钛好得多。
结论
90分钟的涂层持续时间对于生物植入用钢的涂层应该是最佳的。
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