scholarly journals Effects of Titanium-Implanted Dose on the Tribological Properties of 316L Stainless Steel

Materials ◽  
2021 ◽  
Vol 14 (6) ◽  
pp. 1482
Author(s):  
Wei Wang ◽  
Zhiqiang Fu ◽  
Lina Zhu ◽  
Wen Yue ◽  
Jiajie Kang ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Stainless Steel ◽  
Tribological Properties ◽  
316L Stainless Steel ◽  
Implantation Dose ◽  
316L Austenitic Stainless Steel ◽  
New Phase ◽  
Oxidation Wear ◽  
Different Doses ◽  
Ion Implanted

The effects of titanium (Ti) ion-implanted doses on the chemical composition, surface roughness, mechanical properties, as well as tribological properties of 316L austenitic stainless steel are investigated in this paper. The Ti ion implantations were carried out at an energy of 40 kV and at 2 mA for different doses of 3.0 × 1016, 1.0 × 1017, 1.0 × 1018, and 1.7 × 1018 ions/cm2. The results showed that a new phase (Cr2Ti) was detected, and the concentrations of Ti and C increased obviously when the dose exceeded 1.0 × 1017 ions/cm2. The surface roughness can be significantly reduced after Ti ion implantation. The nano-hardness increased from 3.44 to 5.21 GPa at a Ti ion-implanted dose increase up to 1.0 × 1018 ions/cm2. The friction coefficient decreased from 0.78 for un-implanted samples to 0.68 for a sample at the dose of 1.7 × 1018 ions/cm2. The wear rate was slightly improved when the sample implanted Ti ion at a dose of 1.0 × 1018 ions/cm2. Adhesive wear and oxidation wear are the main wear mechanisms, and a slightly abrasive wear is observed during sliding. Oxidation wear was improved significantly as the implantation dose increased.

Influence of the Temperature in the Direct Forming Laser Process of 316L Stainless Steel with CO2 Laser

2014 ◽  
Vol 802 ◽  
pp. 334-337
Author(s):  
C.L. Santos ◽  
G. Vasconcelos ◽  
H.S. Oliveira ◽  
L.G. Oliveira ◽  
J.F. Azevedo ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Stainless Steel ◽  
Melting Point ◽  
Laser Beam ◽  
316L Stainless Steel ◽  
Turbine Blades ◽  
Scanning Speed ◽  
Sample Surface ◽  
Laser Process

This study shows the influence of the temperature in the Direct Forming Laser process (DFL) of 316L stainless steel metal powder. Results shows that an increasing in the sample surface temperature can improve the laser beam absorption in the DFL process. A pre-heating in the substrate and in the powder contributed to decrease the time to reach the melting point and to improve the surface roughness. This effect was investigated with constant lasers parameters (scanning speed and intensity) and a heating in the samples in the temperature range of 20oto 200oC. It was possible to evaluate the DFL process and to optimize the quality of the sample surface roughness. These results will benefit the knowledge of the DFL technology that can be applied in the development of turbine blades.

Effects of Residual Carbon on Microstructure and Surface Roughness of PIM 316L Stainless Steel

InCIEC 2014 ◽  
2015 ◽  
pp. 927-935 ◽  
Author(s):  
Muhammad Rafi Raza ◽  
Faiz Ahmad ◽  
Norhamidi Muhamad ◽  
Abu Bakar Sulong ◽  
M. A. Omar ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Stainless Steel ◽  
316L Stainless Steel ◽  
Residual Carbon

A Comparison of the Effects of Wire Electrical Discharge Machining Parameters on the Processing of Traditionally Manufactured and Additively Manufactured 316L Stainless Steel Specimens

2018 ◽  
Author(s):  
Gregory Bicknell ◽  
Guha Manogharan
Keyword(s):  
Surface Roughness ◽  
Stainless Steel ◽  
316L Stainless Steel ◽  
Machining Parameters ◽  
Wire Edm ◽  
Machining Time ◽  
Pulse On Time ◽  
Pulse Off Time ◽  
Off Time ◽  
Time Pulse

Wire electric discharge machining (EDM) is a non-traditional machining method that has the ability to machine hard, conductive materials, with no force and high precision. This technology is used in industries, like the aerospace industry, to create precision parts used in high stress applications. Wire EDM is also commonly used in additive manufacturing (AM) applications to remove printed parts from the base-plates onto which they are printed. Numerous studies show the effects of EDM parameters, like pulse-on time, pulse-off time, and cutting voltage, on the processing of traditionally fabricated metal parts. However, very few studies identify how the parameters of wire EDM affect the processing of AM parts. This paper studies the effect of wire EDM pulse-on time, pulse-off time, and cutting voltage on the machining time, surface roughness, and hardness of additively manufactured 316L stainless steel cylinders. The effects of these wire EDM parameters are then tested on the machining time, surface roughness, and hardness of wrought 316L stainless steel cylinders. It was found that machining time of AM samples was statistically significantly lower than wrought samples and also had better surface finish and lower surface hardness.

Tribological properties of silicon nitride ceramics coated with DLC and DLC-Si against 316L stainless steel

Vacuum ◽  
2007 ◽  
Vol 81 (11-12) ◽  
pp. 1448-1452 ◽  
Author(s):  
J.R. Gomes ◽  
S.S. Camargo ◽  
R.A. Simão ◽  
J.M. Carrapichano ◽  
C.A. Achete ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Silicon Nitride ◽  
Tribological Properties ◽  
316L Stainless Steel ◽  
Nitride Ceramics
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