期刊
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
卷 -, 期 -, 页码 -出版社
SPRINGER
DOI: 10.1007/s11665-023-07928-z
关键词
biocompatibility; MTT; severe plastic deformation; SLActive; UFG-Ti
The aim of this study is to investigate the impact of microstructuring plus a surface modification method named SLActive on the mechanical properties and biocompatibility of coarse-grained (CG) titanium grade 2 through in vitro tests. SLActive is a developed method based on SLA. The study involved grain-refinement of CG-Ti grade 2 using equal channel angular pressing (ECAP), followed by the application of SLA and SLActive methods on various titanium alloys. Results showed that UFG-Ti-gr2 exhibited improved mechanical properties comparable to Ti-6Al-4 V, increased microhardness, and the roughest surface among the tested materials. MTT test demonstrated the highest cell viability and proliferation for SLActive UFG-Ti-gr2, suggesting its potential for dental implant production.
The main purpose of this study is to investigate the effect of microstructuring plus a surface modification method, named SLActive, on mechanical properties and biocompatibility of coarse-grained (CG) titanium grade 2 by in vitro test. In fact, SLActive process is a developed SLA method. To investigate the effects of these two applications on coarse-grained Ti-gr2, this last was grain-refined by the equal channel angular pressing (ECAP). Afterward, SLA and SLActive methods were applied on coarse-grained (CG)-Ti grade 2, ultrafine-grained (UFG)-Ti grade 2, coarse-grained (CG)-Ti grade 4 and Ti-6Al-4 V alloy. Tensile test revealed that mechanical properties of UFG-Ti-gr2 were all developed up to those of Ti-6Al-4 V. Vickers microhardness test showed an increase in hardness of similar to 162% for UFG-Ti-gr2 compared to CG-Ti-gr2. Surface roughness test indicated the surface of UFG-Ti-gr2 as the roughest among others. The drop test registered an angle of similar to 0 degrees for all SLActive samples. MTT test represented the highest cell viability and proliferation for SLActive UFG-Ti-gr2 sample. As it was found out from results, the SLActive UFG-Ti-gr2 sample presented the highest potential, among other materials, to be used in dental implant production industries.
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