Highly porous, low elastic modulus 316L stainless steel scaffold prepared by selective laser melting
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F16%3A43902079" target="_blank" >RIV/60461373:22310/16:43902079 - isvavai.cz</a>
Výsledek na webu
<a href="http://dx.doi.org/10.1016/j.msec.2016.07.027" target="_blank" >http://dx.doi.org/10.1016/j.msec.2016.07.027</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.msec.2016.07.027" target="_blank" >10.1016/j.msec.2016.07.027</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Highly porous, low elastic modulus 316L stainless steel scaffold prepared by selective laser melting
Popis výsledku v původním jazyce
Recently, porous metallic materials have been extensively studied as candidates for use in the fabrication of scaffolds and augmentations to repair trabecular bone defects, e.g. in surroundings of joint replacements. Fabricating these complex structures by using common approaches (e.g., casting and machining) is very challenging. Therefore, rapid prototyping techniques, such as selective laser melting (SLM), have been investigated for these applications. In this study, we characterized a highly porous (87 vol.%) 316L stainless steel scaffold prepared by SLM. 316L steel was chosen because it presents a biomaterial still widely used for fabrication of joint replacements and, from the practical point of view, use of the same material for fabrication of an augmentation and a joint replacement is beneficial for corrosion prevention. The results are compared to the reported properties of two representative nonporous 316L stainless steels prepared either by SLM or casting and subsequent hot forging. The microstructural and mechanical properties and the surface chemical composition and interaction with the cells were investigated. The studied material exhibited mechanical properties that were similar to those of trabecular bone (compressive modulus of elasticity similar to 0.15 GPa, compressive yield strength similar to 3 MPa) and cytocompatibility after one day that was similar to that of wrought 316L stainless steel, which is a commonly used biomaterial. Based on the obtained results, SLM is a suitable method for the fabrication of porous 316L stainless steel scaffolds with highly porous structures.
Název v anglickém jazyce
Highly porous, low elastic modulus 316L stainless steel scaffold prepared by selective laser melting
Popis výsledku anglicky
Recently, porous metallic materials have been extensively studied as candidates for use in the fabrication of scaffolds and augmentations to repair trabecular bone defects, e.g. in surroundings of joint replacements. Fabricating these complex structures by using common approaches (e.g., casting and machining) is very challenging. Therefore, rapid prototyping techniques, such as selective laser melting (SLM), have been investigated for these applications. In this study, we characterized a highly porous (87 vol.%) 316L stainless steel scaffold prepared by SLM. 316L steel was chosen because it presents a biomaterial still widely used for fabrication of joint replacements and, from the practical point of view, use of the same material for fabrication of an augmentation and a joint replacement is beneficial for corrosion prevention. The results are compared to the reported properties of two representative nonporous 316L stainless steels prepared either by SLM or casting and subsequent hot forging. The microstructural and mechanical properties and the surface chemical composition and interaction with the cells were investigated. The studied material exhibited mechanical properties that were similar to those of trabecular bone (compressive modulus of elasticity similar to 0.15 GPa, compressive yield strength similar to 3 MPa) and cytocompatibility after one day that was similar to that of wrought 316L stainless steel, which is a commonly used biomaterial. Based on the obtained results, SLM is a suitable method for the fabrication of porous 316L stainless steel scaffolds with highly porous structures.
Klasifikace
Druh
J<sub>x</sub> - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
CEP obor
JG - Hutnictví, kovové materiály
OECD FORD obor
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Návaznosti výsledku
Projekt
<a href="/cs/project/GBP108%2F12%2FG043" target="_blank" >GBP108/12/G043: Mikro- a nanokrystalické materiály s vysokým podílem rozhraní pro moderní strukturní aplikace, biodegradabilní implantáty a uchovávání vodíku</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2016
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Materials science and engineering C
ISSN
0928-4931
e-ISSN
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Svazek periodika
69
Číslo periodika v rámci svazku
December
Stát vydavatele periodika
US - Spojené státy americké
Počet stran výsledku
9
Strana od-do
631-639
Kód UT WoS článku
000383930900075
EID výsledku v databázi Scopus
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