Naslov
Comparative Analysis of Fracture Mechanics Parameters for Wrought and SLM Produced Ti-6Al-7Nb Alloy

Autori
Gelo, Ivan ; Kozak, Dražan ; Gubeljak, Nenad ; Vuherer, Tomaž

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, prošireni sažetak, znanstveni

Skup
19th International Conference on New Trends in Fatigue and Fracture

Mjesto i datum
Tucson (AZ), Sjedinjene Američke Države, 08.10.2019. - 10.10.2019

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Podatak o recenziji nije dostupan

Ključne riječi
fracture toughness ; additive technologies ; powder metallurgy ; selective laser melting ; Ti-6Al-7Nb

Sažetak
The research presented in this paper is based on the need for personalized medical implants, whose serial production is impossible, so the need for production process adjustments is inevitable. Conventional production technologies usually set geometrical limitations and generate a lot of waste material, which leads to large expenses, especially when the material used for production is expensive Ti-alloy. Additive technologies offer a possibility to produce a produt almost without waste material and geometrical limitations. Nevertheless, the methods developed for additive production using metal powder are not significantly used in biomedicine because there are insufficient data published regarding the properties of additively produced parts, especially from the fatigue and fracture standpoint. The aim of this research is experimental determination of fracture mechanics properties of additively produced parts and their comparison with the properties of parts produced by conventional technologies. Drawing is the first production process in comparison, and the second one is selective laser melting (SLM). Ti-alloy Ti- 6Al-7Nb produced for hip implants is used in this research. Experimental testing has been performed in order to determine ΔKth, fracture mechanics parameters and resistance curves according to ASTM E1820. Test specimens dimensioning and the experiments are carried out according to the respective standards.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

POVEZANOST RADA