Effect of boron addition on injection molded 316L stainless steel: Mechanical, corrosion properties and in vitro bioactivity

2012 ◽  
Vol 22 (6) ◽  
pp. 333-349 ◽  
Author(s):  
Esra Bayraktaroglu ◽  
H. Ozkan Gulsoy ◽  
Nagihan Gulsoy ◽  
Ozay Er ◽  
Hasan Kilic
MRS Advances ◽  
2019 ◽  
Vol 4 (57-58) ◽  
pp. 3133-3142 ◽  
Author(s):  
Jorge López-Cuevas ◽  
Juan Carlos Rendón-Angeles ◽  
Juan Méndez-Nonell ◽  
Héctor Barrientos-Rodríguez

ABSTRACTAISI 316L stainless steel substrates were coated with hydroxyapatite [HAp, Ca10(PO4)6(OH)2]-seeded 58S bioglass, and then their in vitro bioactivity was evaluated by soaking in a simulated body fluid (SBF). The bioglass was prepared via the sol-gel technique and nanometric HAp single crystals were obtained by hydrothermal synthesis. The coatings had bioglass/HAp weight ratios of 100/0, 90/10 or 80/20. The in vitro bioactivity tests were carried out under static conditions at 37 °C and pH = 7.25, for time periods ranging from 1 to 21 days. The results showed that the HAp-seeding significantly accelerates the formation of a HAp layer at the bioglass-coated steel surface during the bioactivity tests.


2016 ◽  
Vol 41 (11) ◽  
pp. 4669-4681 ◽  
Author(s):  
Muhammad Aslam ◽  
Faiz Ahmad ◽  
Puteri Sri Melor Binti Megat Yusoff ◽  
Wen Lin Chai ◽  
Wei Cheong Ngeow ◽  
...  

2015 ◽  
Vol 1119 ◽  
pp. 505-509
Author(s):  
H. Ozkan Gulsoy ◽  
Serdar Pazarlioglu ◽  
Semih Ozbey

The objective of this research is to investigate the effect of Zr, Nb and Ti additions on microstructural, mechanical and electrochemical properties of injection molded 316L stainless steel. The amount of additive powder plays a role in determining the sintered microstructure and all properties. In this study, 316L stainless steel powders used with the elemental Zr, Nb and Ti powders. The binders were completely removed from molded components by solvent and thermal debinding. The debinded samples were sintered at different temperature for 60 min. at different temperatures. Mechanical property, microstructural characterization and electrochemical property of the sintered samples were performed using tensile testing, hardness, optical, scanning electron microscopy and electrochemical experiments. Results of study showed that sintered 316L and 316L with additive powder samples exhibited high mechanical and corrosion properties in a physiological environment.


2016 ◽  
Vol 1133 ◽  
pp. 324-328 ◽  
Author(s):  
Muhammad Aslam ◽  
Faiz Ahmad ◽  
P.S.M. Bm-Yousoff ◽  
Khurram Altaf ◽  
Afian Omar ◽  
...  

Optimization of solvent debinding process parameters for powder injection molded 316L stainless steel (SS) has been reported in this research work. Powder gas atomized (PGA) 316L SS was blended with a multicomponent binder in Z-blade mixer at 170°C ± 5°C for 90 minutes. Feedstock was successfully injected at temperature 170 ± 5°C. Injection molded samples were immersed in n-heptane for 2h, 4h, 6h and 8h at temperatures 50°C ,55°C and 60°C to extract the soluble binder components. Scanning electron microscope (SEM) results attested that soluble binder components were completely extracted from injection molded samples at temperature 55°C after 6h.


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