Brief data overview of differently heat treated binder jet printed samples made from argon atomized alloy 625 powder

Powder bed binder jet printing (BJP) is an additive manufacturing method in which powder is deposited layer-by-layer and selectively joined in each layer with binder. The data presented here relates to the characterization of the as-received feedstock powder, BJP processing parameters, sample preparation and sintering profile (“Effect of solutionizing and aging on the microstructure and mechanical properties of powder bed binder jet printed nickel-based superalloy 625” (A. Mostafaei, Y. Behnamian, Y.L. Krimer, E.L. Stevens, J.L. Luo, M. Chmielus, 2016) [1], “Powder bed binder jet printed alloy 625: densification, microstructure and mechanical properties” (A. Mostafaei, E. Stevens, E. Hughes, S. Biery, C. Hilla, M. Chmielus, 2016) [2]). The data presented here relates to the characterization of the as-received feedstock powder, BJP processing parameters, sample preparation and sintering profile. Effect of post heat treatments including solutionizing and aging on the microstructure and mechanical properties of powder bed binder jet printed nickel-based superalloy 625 were compared to that of sintered samples

Effect of Tricalcium Magnesium Silicate Coating on the Electrochemical and Biological Behavior of Ti-6Al-4V Alloys.

In the current study, a sol-gel-synthesized tricalcium magnesium silicate powder was coated on Ti-6Al-4V alloys using plasma spray method. Composition of feed powder was evaluated by X-ray diffraction technique before and after the coating process. Scanning electron microscopy and atomic force microscopy were used to study the morphology of coated substrates. The corrosion behaviors of bare and coated Ti-6Al-4V alloys were examined using potentiodynamic polarization test and electrochemical impedance spectroscopy in stimulated body fluids. Moreover, bare and coated Ti-6Al-4V alloys were characterized in vitro by culturing osteoblast and mesenchymal stem cells for several days. Results demonstrated a meaningful improvement in the corrosion resistance of Ti-6Al-4V alloys coated with tricalcium magnesium silicate compared with the bare counterparts, by showing a decrease in corrosion current density from 1.84 μA/cm2 to 0.31 μA/cm2. Furthermore, the coating substantially improved the bioactivity of Ti-6Al-4Valloys. Our study on corrosion behavior and biological response of Ti-6Al-4V alloy coated by tricalcium magnesium silicate proved that the coating has considerably enhanced safety and applicability of Ti-6Al-4V alloys, suggesting its potential use in permanent implants and artificial joints

Morphology of the cells on the surface of the bare Ti-6Al-4V alloy (a) and the Ti-6Al-4V alloy coated with tricalcium magnesium silicate (b, c) after 5 d of culture.

<p>Morphology of the cells on the surface of the bare Ti-6Al-4V alloy (a) and the Ti-6Al-4V alloy coated with tricalcium magnesium silicate (b, c) after 5 d of culture.</p

Nyquist (a) and Bode (b) plots of the bare Ti-6Al-4V alloy and theTi-6Al-4V alloy coated with tricalcium magnesium silicate.

<p>Nyquist (a) and Bode (b) plots of the bare Ti-6Al-4V alloy and theTi-6Al-4V alloy coated with tricalcium magnesium silicate.</p

Polarization test curves of the bare Ti-6Al-4V alloy and the Ti-6Al-4V alloy coated with tricalcium magnesium silicate.

<p>Polarization test curves of the bare Ti-6Al-4V alloy and the Ti-6Al-4V alloy coated with tricalcium magnesium silicate.</p

EDX analysis of the tricalcium magnesium silicate coating.

<p>EDX analysis of the tricalcium magnesium silicate coating.</p

Cell morphology after cell growth of cultures with the bare Ti-6Al-4V alloy (a), the coated Ti-6Al-4V alloy (b), and the culture media (c) after 72 h.

<p>Cell morphology after cell growth of cultures with the bare Ti-6Al-4V alloy (a), the coated Ti-6Al-4V alloy (b), and the culture media (c) after 72 h.</p

Composition of SBF fluid [35].

<p>Composition of SBF fluid [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0138454#pone.0138454.ref035" target="_blank">35</a>].</p

SEM (a), AFM (b), and cross-section SEM (c) images of the tricalcium magnesium silicate coating.

<p>SEM (a), AFM (b), and cross-section SEM (c) images of the tricalcium magnesium silicate coating.</p