功能化表面處理誘導形成重鑄層之研究

本論文主要研究不銹鋼AISI 316L表面經過不同速度之雷射處理後，其微觀結構與生物相容性之特性分析，結果顯示，不銹鋼表面經過雷射處理後，表面為含Fe、Cr與N之氧化層，且具有多孔性，此外表面粗糙度增加，而接觸角減小，由生物相容性中MTT之結果分析，主要的影響為表面經雷射處理後之氧化層與其表面粗糙度，這些功能可以進一步了解AISI316L不銹鋼的微觀結構，生物相容性和血液相容性之間的關係，把發展作為新的醫療植入物合金具有良好的生物相容性。

關鍵字

不銹鋼；顯微結構；雷射處理；成骨細胞

並列摘要

The purpose of the present study is to investigate the influence of laser rate on the microstructure and biocompatibility of the laser-treated AISI 316L stainless steel. Results indicated that after laser treatment, a roughened and porous layer comprising Fe, Cr, and Ni oxides, formed on the surface. Furthermore, increasing laser rate, the surface roughness increases while the contact angle decreases. The results of MTT assay exhibits that the laser-treated 316L SS is biocompatible attributed to the oxides on surface and the roughened surface. These features can be useful in further understanding the relationship between the microstructure, biocompatibility and hemocompatibility of the AISI 316LSS, to development as anew medical implant alloy with good biocompatibility.

並列關鍵字

Stainless steel ； Microstructure ； Laser treatment ； Osteoblasts

參考文獻

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國際替代計量

功能化表面處理誘導形成重鑄層之研究

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