scholarly journals Effect of Temperature on Anti-Corrosive Properties of Diamond-Like Carbon Coating on S355 Steel

Materials ◽  
2019 ◽  
Vol 12 (10) ◽  
pp. 1659
Author(s):  
Mieczyslaw Scendo ◽  
Katarzyna Staszewska-Samson
Keyword(s):  
Heat Treatment ◽  
Corrosion Test ◽  
Carbon Coating ◽  
Steel Surface ◽  
Steel Substrate ◽  
Chemical Vapor ◽  
Effect Of Temperature ◽  
Diamond Like Carbon ◽  
Corrosive Environment ◽  
Dlc Coating

Influence of temperature on the anti-corrosive properties of a diamond-like carbon (DLC) coating, produced using plasma-enhanced chemical vapor deposition (PECVD) on the S355 steel substrate (S355/DLC), was investigated. Corrosion test of the materials were carried out using the electrochemical method. The corrosive environment was an alkaline solution of sodium chloride. The heat treatment of the materials was carried out in air atmosphere, at 400 and 800 °C. It was demonstrated that the DLC coating effectively protected the S355 steel surface from coming into contact with an aggressive corrosive environment. It was found, based on a corrosion test after a heat treatment at 400 °C, that the anti-corrosive properties of the DLC coating did not undergo significant changes. Due to the changes in the surface structure of S355/DLC, the microhardness (HV) of the DLC layer increased. However, after a heat treatment at 800 °C, the carbon coating on the S355 steel surface was destroyed and, thus, lost its protective effect on the substrate.

The Effects of the Aging Temperature on the Microstructure and Corrosion Resistance of the Nickel-Phosphorus Composite Al2O3 Deposit

2012 ◽  
Vol 217-219 ◽  
pp. 101-104
Author(s):  
Li Ming Lian ◽  
Fang Fang Yan
Keyword(s):  
Heat Treatment ◽  
Corrosion Resistance ◽  
Aging Temperature ◽  
Corrosion Test ◽  
Steel Surface ◽  
Annealing Temperature ◽  
Electroless Nickel ◽  
Major Elements ◽  
Treatment Temperature ◽  
Chemical Plating

In this Paper, electroless nickel-phosphorus composite of Al2O3 deposit is prepared by chemical plating on 45 steel. Surface topography, microstructure and major elements are analyzed by SEM, EDS and XRD. The results show that the deposit is compact and the binding of the coating interface is very good. It is found that the microstructure of deposit is amorphous and after heat treatment is crystalline. Corrosion test showed that the coating's corrosion resistance is related to heat treatment temperature. It exhibits better corrosion resistance at annealing temperature of 250°C.

scholarly journals Fabrication and Characterization of ZnS/Diamond-Like Carbon Core-Shell Nanowires

2016 ◽  
Vol 2016 ◽  
pp. 1-6
Author(s):  
Jung Han Kim ◽  
Seul Cham Kim ◽  
Do Hyun Kim ◽  
Kyu Hwan Oh ◽  
Woong-Ki Hong ◽  
...  
Keyword(s):  
Optical Properties ◽  
Coating Layer ◽  
Wavelength Region ◽  
Chemical Vapor ◽  
Diamond Like Carbon ◽  
Core Shell ◽  
Face Centered Cubic ◽  
Infrared Wavelength ◽  
Dlc Coating ◽  
Shell Nanowires

We fabricated ZnS/diamond-like carbon (DLC) core-shell heterostructure nanowire using a simple two-step process: the vapor-liquid-solid method combined with radio frequency plasma enhanced chemical vapor deposition (rf PECVD). As a core nanowire, ZnS nanowires with face-centered cubic structure were synthesized with a sputtered Au thin film, which exhibit a length and a diameter of ~10 μm and ~30–120 nm . After rf PECVD for DLC coating, The length and width of the dense ZnS/DLC core-shell nanowires were a range of ~10 μm  and 50–150 nm , respectively. In addition, ZnS/DLC core-shell nanowires were characterized with scanning transmission electron microscopy. From the results, the products have flat and uniform DLC coating layer on ZnS nanowire in spite of high residual stress induced by the high sp3fraction. To further understanding of the DLC coating layer, Raman spectroscopy was employed with ZnS/DLC core-shell nanowires, which reveals two Raman bands at 1550 cm−1(G peak) and 1330 cm−1(D peak). Finally, we investigated the optical properties from ultraviolet to infrared wavelength region using ultraviolet-visible (UV-Vis) and Fourier transform infrared (FT-IR) spectrometry. Related to optical properties, ZnS/DLC core-shell nanowires exhibit relatively lower absorbance and higher IR transmittance than that of ZnS nanowires.

Friction and wear behavior of hydrogenated diamond-like carbon coating against titanium alloys under large normal load and variable velocity

2017 ◽  
Vol 69 (2) ◽  
pp. 199-207 ◽  
Author(s):  
Jun Liu ◽  
Zhinan Zhang ◽  
Zhe Ji ◽  
Youbai Xie
Keyword(s):  
Friction Coefficient ◽  
Service Life ◽  
Carbon Coating ◽  
Friction And Wear ◽  
Wear Behavior ◽  
Normal Load ◽  
Diamond Like Carbon ◽  
Content Type ◽  
Friction And Wear Behavior ◽  
Dlc Coating

Purpose This paper aims to investigate the effects of reciprocating frequency, large normal load on friction and wear behavior of hydrogenated diamond-like carbon (H-DLC) coating against Ti-6Al-4V ball under dry and lubricated conditions. Design/methodology/approach The friction and wear mechanisms are analyzed by scanning electron microscope, energy dispersive spectroscopy and Raman spectroscopy. Findings The results show that as reciprocating frequency increases under lubricated conditions, the friction coefficient decreases first and then increases. When the reciprocating frequency is 2.54 Hz, the value of friction coefficient reaches the minimum. The friction reduction is because of the transformation from sp3 to sp2, the formation of transfer layer on Ti-6Al-4V ball and the reduction in viscous friction, whereas the increase of friction coefficient is related to wear. In dry conditions, the friction coefficient is between 0.06 and 0.1. And, the service life of H-DLC coating decreases with the increase in reciprocating frequency and normal load. Research limitations/implications It is confirmed that adding the lubricant could prolong the service life of H-DLC coating and reduce friction and wear efficiently. And, the wear mechanisms under dry and lubricated conditions encompass abrasive wear and adhesive wear. Originality/value The results are helpful for application of diamond-like carbon coating.

Contact damage evolution in a diamond-like carbon (DLC) coating on a stainless steel substrate

2007 ◽  
Vol 515 (6) ◽  
pp. 3196-3201 ◽  
Author(s):  
Z.-H. Xie ◽  
R. Singh ◽  
A. Bendavid ◽  
P.J. Martin ◽  
P.R. Munroe ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Damage Evolution ◽  
Stainless Steel Substrate ◽  
Steel Substrate ◽  
Diamond Like Carbon ◽  
Contact Damage ◽  
Dlc Coating

Friction and Wear of Engineering Plastics Measured on a Diamond-Like Carbon Coating and a Steel Surface. 1

2002 ◽  
Vol 29 (5) ◽  
pp. 17-26
Author(s):  
L. Zsidai ◽  
G. Kalacska ◽  
K. Vercammen ◽  
K. van Acker ◽  
J. Meneve ◽  
...  
Keyword(s):  
Carbon Coating ◽  
Friction And Wear ◽  
Steel Surface ◽  
Diamond Like Carbon ◽  
Engineering Plastics

EFFECT OF TEMPERATURE ON SELF-ASSEMBLY OF DIAMOND-LIKE CARBON (DLC) GROWN BY PLASMA ENHANCED CHEMICAL VAPOR DEPOSITION (PECVD)

2009 ◽  
Vol 16 (03) ◽  
pp. 337-341
Author(s):  
OJAS MAHAPATRA ◽  
R. MAHESWARAN ◽  
N. SATYA VIJAYA KUMAR ◽  
K. R. GANESH ◽  
C. GOPALAKRISHNAN ◽  
...  
Keyword(s):  
Chemical Vapor Deposition ◽  
Vapor Deposition ◽  
Self Assembly ◽  
Carbon Nanostructures ◽  
Lattice Mismatch ◽  
Chemical Vapor ◽  
Effect Of Temperature ◽  
Diamond Like Carbon ◽  
Force Microscopy ◽  
Roughness Analysis

Diamond-like carbon nanostructures were prepared using Plasma enhanced chemical vapor deposition (PECVD). Temperature dependence of self-assembly of carbon nanostructures is noted. Carbon and silicon exhibit significant lattice mismatch and during the self-assembly, stacking of carbon atoms takes place which results in conic projections. The carbon nanostructures were prepared at 600°C and 100 W RF power and were subjected to a cooling treatment. Argon and Methane were used as reactant gases. The formation of nanostructures did not use any catalyst. The surface morphology and roughness analysis was carried by Atomic Force microscopy. The nanocones were characterized by X Ray Diffractometer and Raman Spectroscopy.

Mechanical properties and microstructural analysis of a diamond-like carbon coating on an alumina/glass composite

1996 ◽  
Vol 11 (8) ◽  
pp. 1934-1942 ◽  
Author(s):  
S. Christiansen ◽  
M. Albrecht ◽  
H. P. Strunk ◽  
H. Hornberger ◽  
P.M. Marquis ◽  
...  
Keyword(s):  
Wear Resistance ◽  
Carbon Coating ◽  
Microstructural Analysis ◽  
Aluminosilicate Glass ◽  
Surface Topology ◽  
Diamond Like Carbon ◽  
Microstructural Properties ◽  
Glass Composite ◽  
Substrate Roughness ◽  
Dlc Coating

We investigate the mechanical and microstructural properties of a diamond-like carbon coating (DLC) which is deposited by plasma enhanced chemical vapor deposition (PECVD) onto an alumina/aluminosilicate glass composite used for biomedical applications. Ball-on-ring tests yield a fracture strength that is essentially influenced by the surface topology/roughness. The surface topology of the coating is investigated by atomic force microscopy (AFM). Tribology tests and nanoindentation represent the wear resistance and hardness; these are properties that are mainly influenced by the microstructural properties of the DLC coating. This microstructure is investigated by transmission electron microscopy (TEM) and analyzed by parallel electron energy loss spectroscopy (PEELS). For the general applicability of the coated composite, the interfacial adhesion of the DLC coating on the comparably rough substrate (roughness amplitudes and wavelengths are in the micrometer range) is important. Therefore, we focus on TEM investigations that show the interface to be free of gaps and pores that we, together with a characteristic microstructure adjacent to the interface, relate to the excellent adhesion. The interlayer consists of a high density of SiC grains, part of them directly bound to the substrate, and part of them bound to other SiC grains. This interlayer is followed by an essentially different region of the coating as concerns the microstructure; this region consists of nanocrystalline diamond particles embedded in an amorphous carbon matrix. It is this heterogeneous microstructure to which we attribute (i) the good adhesion based upon the interface stabilizing SiC grains, and (ii) the high hardness and wear resistance based upon the diamond nanocrystals in the coating.

scholarly journals Characteristics of Diamond-Like Carbon Coating Using Plasma Assisted Chemical Vapor Deposition on Steel Tool

2020 ◽  
Vol 3 (1) ◽  
pp. 27-32
Author(s):  
Saifudin Saifudin ◽  
Wawan Purwanto ◽  
Jerry Chih Tsong Su
Keyword(s):  
Chemical Vapor Deposition ◽  
Vapor Deposition ◽  
High Speed ◽  
Surface Hardness ◽  
High Speed Steel ◽  
Chemical Vapor ◽  
Physical And Mechanical Properties ◽  
Diamond Like Carbon ◽  
Dlc Coating ◽  
Wear And Corrosion

High Speed Steel (HSS) tool is commonly used in engineering applications, especially as cutters. The shortfall of this materials are wear and corrosion. However, these can be reduced by coating the surface of the material. Therefore, the purpose of this research is to investigate the effects of Diamond Like Carbon (DLC) coating, quenching heating treatment, and tempering on the physical and mechanical properties of HSS surface. The physical characteristics which will be investigated is the micro structure,  while the mechanical characteristics are hardness, wear and corrosion rate. HSS has variations in their chemical composition (% mass): 0.75–1.5 C,  Co >12, V > 5, 4–4.5 Cr,10–20 W and Mo. Furthermore, DLC coating uses Plasma Assisted Chemical Vapor Deposition (PACVD) technique with variation in the duration of coating (1,2,3,4,5 and 6 hours) at temperature of 300℃, with pressure variations of 1.0, 1.2, 1.4, 1.6, 1.8 and 2.0 millibar. DLC coating material be treated from methane or ethane gas, which is streamed into the fire with Argon (Ar). The result shows variations in DLC coating and the hardness grade depends on the coating time and pressure variation. DLC coating for a duration of 4 hours under 1.8 mbar pressure can reduce the surface hardness of HSS tool by 62% accompanied by increased ductility.

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