Tribological studies of ZrO2‐implanted on stainless steel substrate

2004 ◽  
Vol 56 (6) ◽  
pp. 341-345 ◽  
Author(s):  
Halit Dogan ◽  
Fehim Findik ◽  
Ahmet Oztarhan
Keyword(s):  
Stainless Steel ◽  
Wear Resistance ◽  
316L Stainless Steel ◽  
Steel Substrate ◽  
Surface Hardness ◽  
Wear Volume ◽  
Aisi 316L ◽  
Aisi 316L Stainless Steel ◽  
Oxygen Ions ◽  
Steel Substrates

The tribological properties such as surface hardness, friction and wear have been studied for AISI 316L stainless steel substrates which were co‐ion implanted with zirconium and oxygen ions. It is found that the wear resistance for AISI 316L stainless steel substrates implanted with zirconium and oxygen ions increased quite a lot. It is concluded that the increase in surface microhardness and the decrease in friction coefficient of AISI 316L stainless steel substrates play an important role in improving the wear resistance, and the relationship between relative wear volume and microhardness is correlated for zirconium and oxygen co‐ion implantation.

In Vitro Bioactivity of AISI 316L Stainless Steel Coated with Hydroxyapatite-Seeded 58S Bioglass

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
Keyword(s):  
Stainless Steel ◽  
316L Stainless Steel ◽  
Sol Gel ◽  
Aisi 316L ◽  
In Vitro Bioactivity ◽  
Aisi 316L Stainless Steel ◽  
Gel Technique ◽  
Static Conditions ◽  
Steel Substrates

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.

scholarly journals Surface Nanostructure Formations in an AISI 316L Stainless Steel Induced by Pulsed Electron Beam Treatment

2015 ◽  
Vol 2015 ◽  
pp. 1-5 ◽  
Author(s):  
Yang Cai ◽  
Kemin Zhang ◽  
Zhimin Zhang ◽  
Jiawei Dong ◽  
Yuan Lei ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Electron Beam ◽  
316L Stainless Steel ◽  
Steel Substrate ◽  
Aisi 316L ◽  
Structural Refinement ◽  
Electron Backscattered Diffraction ◽  
Aisi 316L Stainless Steel ◽  
Pulsed Electron Beam ◽  
Average Grain Size

High current pulsed electron beam (HCPEB) is an efficient technique for surface modifications of metallic materials. In the present work, the formations of surface nanostructures in an AISI 316L stainless steel induced by direct HCPEB treatment and HCPEB alloying have been investigated. After HCPEB Ti alloying, the sample surface contained a mixture of the ferrite and austenite phases with an average grain size of about 90 nm, because the addition of Ti favors the formation of ferrite. In contrast, electron backscattered diffraction (EBSD) analyses revealed no structural refinement on the direct HCPEB treated sample. However, transmission electron microscope (TEM) observations showed that fine cells having an average size of 150 nm without misorientations, as well as nanosized carbide particles, were formed in the surface layer after the direct HCPEB treatment. The formation of nanostructures in the 316L stainless steel is therefore attributed to the rapid solidification and the generation of different phases other than the steel substrate in the melted layer.

Effects of nitrogen and hydrogen in argon shielding gas on bead profile, delta-ferrite and nitrogen contents of the pulsed GTAW welds of AISI 316L stainless steel

2016 ◽  
Vol 58 (6) ◽  
pp. 489-494 ◽  
Author(s):  
Panyasak Phakpeetinan ◽  
Amnuysak Chianpairot ◽  
Ekkarut Viyanit ◽  
Fritz Hartung ◽  
Gobboon Lothongkum
Keyword(s):  
Stainless Steel ◽  
316L Stainless Steel ◽  
Aisi 316L ◽  
Shielding Gas ◽  
Delta Ferrite ◽  
Aisi 316L Stainless Steel ◽  
Pulsed Gtaw ◽  
Nitrogen Contents ◽  
Bead Profile
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