Microstructure and micro-abrasive wear of sintered yttria-containing 316L stainless steel treated by plasma nitriding

2019 ◽  
Vol 374 ◽  
pp. 700-712 ◽  
Author(s):  
Michell F.C. Ordoñez ◽  
Cintia L.G. Amorim ◽  
Israel Krindges ◽  
Cesar Aguzzoli ◽  
Israel J.R. Baumvol ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Abrasive Wear ◽  
316L Stainless Steel ◽  
Plasma Nitriding

Effects of Hybrid Surface Treatment Composed of Plasma Nitriding and CrN Coating on Friction-Wear Properties of Stainless Steel

2021 ◽  
Vol 105 (1) ◽  
pp. 309-318
Author(s):  
Chien Nguyen ◽  
Emil Svoboda ◽  
Jan Sedlacek ◽  
Josef Sedlak ◽  
Ales Polzer ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Surface Treatment ◽  
316L Stainless Steel ◽  
Plasma Nitriding ◽  
Hardened Layer ◽  
Hard Coatings ◽  
Wear Properties ◽  
Aisi 316L Stainless Steel ◽  
Crn Coating ◽  
Crn Coatings

This study was conducted to investigate the effect of hybrid surface treatment composed of plasma nitriding (PN) and chromium nitride (CrN) coating on the friction-wear properties, the adhesion strength of AISI 316L stainless steel. The CrN coatings with the thickness of 1.0 µm and 2.2 µm were formed on the surfaces of both substrates with plasma nitriding (PN/CrN coating) and without plasma nitriding (CrN coating). The plasma nitriding, CrN coatings, and the hybrid treatment improved markedly the friction-wear properties of the stainless steel. The plasma nitriding generated a hardened layer between the soft substrate and the thin hard coatings and improved markedly friction-wear properties of the CrN-coated stainless steel and the adhesion of the CrN coatings.

Plasma nitriding under low temperature improves the endothelial cell biocompatibility of 316L stainless steel

2019 ◽  
Vol 41 (4-5) ◽  
pp. 503-510 ◽  
Author(s):  
Janine K. F. S. Braz ◽  
Gabriel M. Martins ◽  
Vladimir Sabino ◽  
Jussier O. Vitoriano ◽  
Carlos Augusto G. Barboza ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Endothelial Cell ◽  
Low Temperature ◽  
316L Stainless Steel ◽  
Plasma Nitriding ◽  
Cell Biocompatibility

Improvement of Wear Resistances of AISI 316L Austenitic Stainless Steels by Anodic Nitriding

2012 ◽  
Vol 268-270 ◽  
pp. 269-274
Author(s):  
Yang Li ◽  
Liang Wang ◽  
Jiu Jun Xu ◽  
Ying Chun Shan
Keyword(s):  
Stainless Steel ◽  
Stainless Steels ◽  
316L Stainless Steel ◽  
Plasma Nitriding ◽  
Nitrided Layer ◽  
Austenitic Stainless Steels ◽  
Strengthening Effect ◽  
Aisi 316L ◽  
Discharge System ◽  
Hardness Tester

The nitriding of AISI 316L stainless steels has been carried out at anodic potential in a space enclosed by an active screen that consists of two cylinders with different diameter. These two cylinders made up a hollow cathode in a discharge system. Nitriding experiments were carried out on AISI 316L stainless steel at 450°C for times ranging from 1 to 24h in ammonia atmosphere. The intensity of electron bombardment on the surface of sample was low due to the anodic sheath, the disadvantages attached to conventional plasma nitriding were completely avoided. The phase composition, the thickness and the surface topography of the nitrided layer, as well as its hardness, were investigated by X-ray diffraction, scanning electron microscopy and a micro-hardness tester. The surface microhardness values and the thickness of the hardened layers increased as the nitriding time increased. Tribology properties of the untreated and nitrided 316L stainless steel have been investigated using a ball-on-disc tribometer with AISI52100 ball as the counterface. The results showed wear resistance of the AISI 316L stainless steels were greatly increased by anodic nitriding, owing to the strengthening effect of expanded austenite formed in the modified surface layer.

Effect of Plasma Nitriding on Fatigue Behavior of 316L Stainless Steel

2006 ◽  
pp. 224-228
Author(s):  
Karel Obrtlik ◽  
Jiři Man ◽  
Jaroslav Polák ◽  
Suzanne Degallaix
Keyword(s):  
Stainless Steel ◽  
316L Stainless Steel ◽  
Plasma Nitriding ◽  
Fatigue Behavior

scholarly journals Microstructure and Wear Resistance of Multi-Layer Ni-Based Alloy Cladding Coating on 316L SS under Different Laser Power

Materials ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 781
Author(s):  
Shaoxiang Qian ◽  
Yibo Dai ◽  
Yuhang Guo ◽  
Yongkang Zhang
Keyword(s):  
Solid Solution ◽  
Stainless Steel ◽  
Wear Resistance ◽  
Abrasive Wear ◽  
Laser Power ◽  
316L Stainless Steel ◽  
Adhesive Wear ◽  
Cladding Layer ◽  
Metallurgical Bonding ◽  
Equiaxed Grains

We prepared three kinds of Ni based alloy cladding coatings on 316L stainless steel at different power levels. The microstructure of the cladding layer was observed and analyzed by XRD, metallographic microscope, and SEM. The hardness of the cladding layer was measured, and the wear resistance of it was tested by a friction instrument. The results show that the effect of laser cladding is good, and it has good metallurgical bonding with the substrate. Different microstructures such as dendritic and equiaxed grains can be observed in the cladding layer. With the increase in laser power, more equiaxed and columnar dendrites can be observed. The phase composition of the cladding layer is mainly composed of γ–Ni solid solution and some intermetallic compounds such as Ni3B, Cr5B3, and Ni17Si3. The results of EDS show that there are some differences in the distribution of C and Si between dendrites. The hardness of the cladding layer is about 600 HV0.2, which is about three times of the substrate (~200 HV0.2). Through the analysis of the wear morphology, the substrate wear is serious, there are serious shedding, mainly adhesive wear, and abrasive wear. However, the wear of the cladding layer is slight, which is abrasive wear, and there are some grooves on the surface.

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