scholarly journals The properties of AISI 316L steel after surface treatment with Ti surface alloy and a-C:H:SiOx coating

2021 ◽  
pp. 53-57
Author(s):  
Alexander Grenadyorov ◽  
Andrey Solovyev ◽  
Konstantin Oskomov ◽  
Evgeniy Yakovlev
Keyword(s):  
Surface Treatment ◽  
Steel Surface ◽  
Combined Treatment ◽  
Surface Alloy ◽  
Aisi 316L ◽  
Aisi 316L Stainless Steel ◽  
High Current Electron Beam ◽  
Mechanical And Tribological Properties ◽  
316L Steel ◽  
Current Electron

The paper presents the research results of corrosion and mechanical properties of the AISI 316L stainless steel after the surface treatment. This treatment includes the formation of the titanium-based surface alloy provided by the low-energy high-current electron beam. The obtained surface alloy used as an underlayer, is then coated with the a-C:H:SiOx film using the PACVD method. It is shown that such a combined treatment of the steel surface improves its corrosion resistance, i. e., reduces the current density from 110-7 to 910-10 A/cm2 and corrosion rate from 1.110-3 to 9.310-6 mm/year. The resulted modified steel surface possesses high mechanical and tribological properties

scholarly journals Зависимость механических и трибологических свойств a-C : H : SiO-=SUB=-x-=/SUB=--пленок от амплитуды напряжения смещения подложки

2021 ◽  
Vol 91 (8) ◽  
pp. 1286
Author(s):  
А.С. Гренадеров ◽  
А.А. Соловьёв ◽  
К.В. Оскомов ◽  
М.О. Жульков
Keyword(s):  
Bias Voltage ◽  
Steel Surface ◽  
Chemical Vapor ◽  
Stainless Steel Surface ◽  
Aisi 316L ◽  
Substrate Bias Voltage ◽  
Mechanical And Tribological Properties ◽  
316L Steel ◽  
The Coefficient Of Friction ◽  
Pin On Disk

The paper presents the AISI 316L stainless steel surface modification by plasma-assisted chemical vapor deposition of a-C:H:SiOx film using the pulsed bipolar substrate bias voltage. The mechanical and tribological properties of the a-C:H:SiOx film and the steel surface are examined using the nanoindentation method and the pin-on-disk tribometer, respectively. The optimum value is obtained for the amplitude of the negative pulse of the bipolar bias voltage, when the hardness of the a-C:H:SiOx film is high (19±2 GPa). This hardness value is 3.5 times greater, than the hardness of the AISI 316L steel surface (5.5±0.1 GPa). At the same time, the coefficient of friction of the film is low (0.08), which is 9 times lower than that of the steel (0.72). The wear rate values are found to be 8.5×10-7 and 3.7×10-5 mm3N-1m-1 for the coated and uncoated steel, respectively. The structure and composition of the obtained films are studied by Raman spectroscopy and scanning electron microscopy.

Adhesive Strength of Ni–Cu Surface Alloy Formation by Low-Energy High-Current Electron Beam

2021 ◽  
Vol 63 (10) ◽  
pp. 1804-1809
Author(s):  
E. V. Yakovlev ◽  
A. B. Markov ◽  
D. A. Shepel ◽  
V. I. Petrov ◽  
A. A. Neiman
Keyword(s):  
Electron Beam ◽  
Adhesive Strength ◽  
Low Energy ◽  
Surface Alloy ◽  
Alloy Formation ◽  
High Current ◽  
High Current Electron Beam ◽  
Current Electron ◽  
High Current Electron

scholarly journals Tribological Properties of AISI 316L Steel Surface Layer Implanted with Rare Earth Element

2015 ◽  
Vol 128 (5) ◽  
pp. 923-926
Author(s):  
B. Sartowska ◽  
M. Barlak ◽  
L. Waliś ◽  
W. Starosta ◽  
J. Senatorski ◽  
...  
Keyword(s):  
Surface Layer ◽  
Rare Earth ◽  
Rare Earth Element ◽  
Tribological Properties ◽  
Steel Surface ◽  
Earth Element ◽  
Aisi 316L ◽  
316L Steel

scholarly journals Improving the Corrosion Resistance of AISI 316L Steel for Semiconductor Piping by Controlled Delta-Ferrite Content

2022 ◽  
Vol 60 (1) ◽  
pp. 46-52
Author(s):  
Young Woo Seo ◽  
Chan Yang Kim ◽  
Bo Kyung Seo ◽  
Won Sub Chung
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
316L Stainless Steel ◽  
Sem Analysis ◽  
Ferrite Content ◽  
Aisi 316L ◽  
Delta Ferrite ◽  
Aisi 316L Stainless Steel ◽  
316L Steel ◽  
The Difference

This study evaluated changes in delta-ferrite content depending on the preheating of AISI 316L stainless steel. We also determined the reasons for the variation in delta-ferrite content, which affects corrosion resistance. Changes in delta-ferrite content after preheating was confirmed using a Feritscope, and the microstructure was analyzed using optical microscopy (OM). We found that the delta-ferrite microstructure size decreased when preheating time was increased at 1295 oC, and that the delta-ferrite content could be controlled through preheating. Potentiodynamic polarization test were carried out in NaCl (0.5 M) + H2SO4 (0.5 M) solution, and it was found that higher delta-ferrite content resulted in less corrosion potential and passive potential. To determine the cause, an analysis was conducted using energy-dispersive spectroscopy (EDS), which confirmed that higher delta-ferrite content led to weaker corrosion resistance, due to Cr degradation at the delta-ferrite and austenite boundaries. The degradation of Cr on the boundaries between austenite and delta-ferrite can be explained by the difference in the diffusion coefficient of Cr in the ferrite and austenite. A scanning electron microscopy (SEM) analysis of material used for actual semiconductor piping confirmed that corrosion begins at the delta-ferrite and austenite boundaries. These results confirm the need to control delta-ferrite content in AISI 316L stainless steel used for semiconductor piping.

Duplex surface treatment of an AISI 316L stainless steel; microstructure and tribological behaviour

2008 ◽  
Vol 202 (13) ◽  
pp. 2945-2954 ◽  
Author(s):  
E. De Las Heras ◽  
D.A. Egidi ◽  
P. Corengia ◽  
D. González-Santamaría ◽  
A. García-Luis ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Surface Treatment ◽  
316L Stainless Steel ◽  
Aisi 316L ◽  
Tribological Behaviour ◽  
Aisi 316L Stainless Steel ◽  
Steel Microstructure ◽  
Duplex Surface Treatment

scholarly journals OF PLASTIC PROPERTIES OF AISI 316L STEEL BY METHOD OF REGISTRATION OF MACROLOCALIZATION FIELDS

2021 ◽  
pp. 4-8
Author(s):  
Sergey Adjamsky ◽  
Ganna Kononenko ◽  
Rostislav Podolskyi
Keyword(s):  
Hydraulic System ◽  
316L Stainless Steel ◽  
Microstructural Analysis ◽  
Machine Building ◽  
Test Machine ◽  
Aisi 316L ◽  
Aisi 316L Stainless Steel ◽  
Plastic Properties ◽  
Working Zone ◽  
316L Steel

Selective laser melting is one of the modern methods of manufacturing parts in the production of machine-building equipment, a special place is occupied by complex technological processes used in the manufacture of high-load units of pneumatic-hydraulic system from heat-resistant alloys. The studies were performed on samples made of powder material AISI 316L stainless steel martensite class. Tests to determine the mechanical properties were performed in accordance with ISO 6892 on an INSTRON test machine. The control of the surface roughness was performed using a BioBase device. From microstructural analysis and testing the method of registration of macrolocalization fields of the working zone samples, it was found that the destruction began from the surface of the samples from the microconcentrators due to different roughness.

Sign in / Sign up

Export Citation Format

Share Document