An experimental approach to the analysis of the adhesion properties of SiC coatings deposited on steel substrates

1992 ◽  
Vol 220 (1-2) ◽  
pp. 271-276 ◽  
Author(s):  
M. Ignat ◽  
M. Ducarroir ◽  
M. Lelogeais ◽  
J. Garden
Keyword(s):  
Experimental Approach ◽  
Adhesion Properties ◽  
Steel Substrates ◽  
Sic Coatings

scholarly journals Effects of Pre- and Post-Carburizing Surface Modification on the Tribological and Adhesion Properties of Heat-Resistant KHR 45A Steel for Cracking Tubes

Materials ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3658
Author(s):  
Auezhan Amanov ◽  
Joo-Hyun Choi ◽  
Young-Sik Pyun
Keyword(s):  
Surface Modification ◽  
Surface Treatment ◽  
Steel Substrate ◽  
Heat Exposure ◽  
Scratch Resistance ◽  
Adhesion Properties ◽  
Heat Resistant ◽  
Adhesion Behavior ◽  
Steel Substrates ◽  
Carburizing Process

In this study, the effects of ultrasonic nanocrystal surface modification (UNSM) technology on the tribological properties and scratch-induced adhesion behavior of a heat-resistant KHR 45A steel cracking tube, which is used for the pyrolysis process, were investigated. The main objective of this study is to investigate the effects of pre- and post-carburizing UNSM treatment on the tribological and adhesion performances of carburized domestic KHR 45A (A) steel and to compare the results with the existing carburized Kubota-made KHR 45A steel (B). A carburizing process was carried out on the polished and UNSM-treated KHR 45A steel substrates, which were cut out from the cracking tube, at 300 °C heat exposure for 300 h. The thickness of the carburizing layer was about 10 μm. UNSM technology was applied as pre- and post-carburizing surface treatment; both reduced the friction coefficient and wear rate compared to that of the carburized KHR 45A steel substrate. It was also found that the application of UNSM technology increased the critical load, which implies the improvement of adhesion behavior between the carburizing layer and the KHR steel substrate. The application of UNSM technology as pre- and post-carburizing surface treatment could help replace carburized Kubota-made KHR 45A steel (B) thanks to the improved tribological performance, enhanced scratch resistance, load bearing capacity, and adhesion of domestic KHR 45A (A) steel.

Effect of styrene–butadiene–styrene content on the adhesion properties of bitumen before and after heat aging

2008 ◽  
Vol 35 (5) ◽  
pp. 454-460 ◽  
Author(s):  
Krzysztof Zieliński
Keyword(s):  
Adhesion Strength ◽  
Test Results ◽  
Adhesion Properties ◽  
Before And After ◽  
Styrene Content ◽  
Styrene Butadiene Styrene ◽  
Styrene Butadiene ◽  
Steel Substrates ◽  
Butadiene Styrene

This article describes the effect of heat aging and styrene–butadiene–styrene (SBS) content in bitumen on the adhesion properties of mastics (bitumen-filler mix) to concrete and steel substrates. Test results showed that the adhesion strength of bituminous mastics to concrete and steel substrates decreased as the SBS content increased. Bitumen types modified with 9%–12% of SBS, commonly used in waterproofing materials, showed an approximately three times weaker bond with concrete and steel substrates than the nonmodified equivalents. Results also showed that after heat aging, the adhesion strength of the nonmodified bitumen was always higher than that of the unheated bitumen modified with 9%–12% of SBS.

The role of a metallic interlayer on the mechanical response of SiC coatings on stainless steel substrates

2002 ◽  
Vol 16 (1) ◽  
pp. 81-97 ◽  
Author(s):  
M. Andrieux ◽  
M. Ignat ◽  
M. Ducarroir ◽  
B. Feltz ◽  
G. Farges
Keyword(s):  
Stainless Steel ◽  
Mechanical Response ◽  
Steel Substrates ◽  
Sic Coatings

Characterization of Mechanical Properties of Brittle Coating Systems by Various Indentation Techniques

2007 ◽  
Vol 352 ◽  
pp. 53-58
Author(s):  
Jong Ho Kim ◽  
Young Gu Kim ◽  
Hyeon Keun Lee ◽  
Do Kyung Kim
Keyword(s):  
Mechanical Properties ◽  
Thin Coating ◽  
Strength Measurement ◽  
Adhesion Properties ◽  
Brittle Coating ◽  
Transparent Substrate ◽  
Tin Coatings ◽  
Sic Coatings

The mechanical properties of brittle coating structures were characterized by various indentation techniques. The adhesion properties of the coatings were evaluated by in situ scratch and sphere indentation method. Physical vapor deposited TiN coatings on transparent substrates, sapphire, were scratched by diamond cone indenter and in situ observed through the transparent substrate. In situ scratch results reveal that the failure of coating is originated from the damage of the substrate and the plastic deformation of substrate is a primary factor for determining the adhesion breakage. The unique characterization technique for the strength measurement of brittle thin coating has been developed. The strength of the thin coating was evaluated by the sphere indentation on the trilayer structure. The CVD SiC coatings on graphite were characterized by the technique. It is concluded that the microstructure of SiC coatings influences the strength. In this paper, the various indentation technique were applied to evaluate the mechanical properties of TiN and SiC coatings and the effect of microstructure on the reliability of the brittle coating system was discussed.

Preparation and Numerical Simulation of Ni-SiC Composite Coatings Deposited by Electrodeposition

2014 ◽  
Vol 543-547 ◽  
pp. 3707-3710
Author(s):  
Yong Wang ◽  
Lei Zhang
Keyword(s):  
Composite Coating ◽  
Current Density ◽  
Pulse Current ◽  
Composite Coatings ◽  
Maximum Error ◽  
Duty Ratio ◽  
Sic Particles ◽  
Ultrasonic Parameters ◽  
Steel Substrates ◽  
Sic Coatings

In order to investigate and predict effects of preparation parameters on wear mass loss of Ni-SiC composite coatings, Ni coatings and Ni-SiC composite coatings were prepared on steel substrates by electrodeposition process. The results showed that the contents of SiC particles increased with density of pulse current and on-duty ratio of pulse current increasing. The predictive curves of wear mass losses predicted by ANN had the similar shapes with the measured curve, and the maximum error was 9.7%. When the current density was between 30 A/dm2 and 50 A/dm2, the wear losses of Ni coatings and Ni-SiC coatings decreased with the increase of current density. SiC particles in a composite coating electrodeposited by ultrasonic parameters were much greater in number and were dispersed homogeneously in the deposit, and the Ni-SiC composite coating exhibited a dense structure.

scholarly journals Fatigue behaviour of Plasma Sprayed Titania and Chromia Coatings

2021 ◽  
Vol 349 ◽  
pp. 02009
Author(s):  
Angelos Koutsomichalis ◽  
Antonios Lontos ◽  
George Loukas ◽  
Michalis Vardavoulias ◽  
Nikolaos Vaxevanidis
Keyword(s):  
Static Loading ◽  
Critical Role ◽  
Microstructural Analysis ◽  
Fatigue Behaviour ◽  
Atmospheric Plasma ◽  
Adhesion Properties ◽  
Wide Range ◽  
Plasma Sprayed ◽  
Titania Coatings ◽  
Steel Substrates

Cr2O3 and TiO2 powders were deposited by atmospheric plasma spray (APS) on steel substrates. Microstructural analysis of the coatings showed typical lamellar structure with good coating quality. Fatigue strength was studied by using cyclic testing (measuring with an inhouse-built apparatus the strength of the coated systems under a wide range of impact cycles) and static loading tests (Vickers tests standards with 600N and 1500N) measuring the adhesion properties of the coatings. In low cycles (1x103) Titania coatings exhibited better strength, while at intermediate (4.5x105) and high (1x106) number of impact cycles, both Chromia and Titania coatings exhibited quite similar strength characteristics. At low impact force the thickness of the coatings plays critical role with better performance obtained by Chromia coatings. During static loading both coatings exhibited similar characteristics at the crater diameter but with larger crater depth for Titania. Chromia coatings exhibited higher strength resistance than Titania coatings with better mechanical properties and coating structure.

Analytical Characterization and Corrosion Behavior of Non-Functional Bis-Silane Pre-Treated Carbon Steel Substrates

2009 ◽  
Vol 79-82 ◽  
pp. 1091-1094
Author(s):  
Hai Ying Zhu ◽  
Yan Chen ◽  
Yun Ping Liu ◽  
Wei Wei Sun ◽  
Shou Gang Chen
Keyword(s):  
Carbon Steel ◽  
Corrosion Behavior ◽  
Electrochemical Impedance ◽  
Good Adhesion ◽  
Adhesion Properties ◽  
Analytical Characterization ◽  
Treated Carbon ◽  
Steel Substrates ◽  
Scanning Electron

The present work aims at studying the corrosion resistance of carbon steel substrates pre-treated with bis-[triethoxysilylpropyl] tetrasulfide (BTESPT) solutions. The corrosion behavior of the pre-treated substrates during immersion in seawater was assessed by electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization. The analytical characterization of the silane films was performed by scanning electron microscopy (SEM). The results show that the pre-treatments based on silanes provide good corrosion protection of carbon steel substrates and the bis-silane film has good adhesion properties.

scholarly journals Influence of Element Penetration Region on Adhesion and Corrosion Performance of Ni-Base Coatings

Coatings ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 895
Author(s):  
Xiuqing Fu ◽  
Zhenyu Shen ◽  
Xinxin Chen ◽  
Jinran Lin ◽  
Hongbing Cao
Keyword(s):  
Corrosion Resistance ◽  
Laser Scanning ◽  
Adhesion Force ◽  
Electrochemical Corrosion ◽  
Corrosion Current ◽  
Scratch Test ◽  
Laser Scanning Confocal Microscopy ◽  
Scanning Confocal Microscopy ◽  
Steel Substrates ◽  
Sic Coatings

In this study, Ni–P/Ni–P–SiC coatings were prepared on pretreated 45 steel substrates by scanning electrodeposition. Prior to the electrodeposition, the substrates were subjected to two types of pretreatments: polishing and sandblasting. The 3D morphology of the pretreated substrates was characterized by laser scanning confocal microscopy. The micromorphology and section morphology of the coating surface were characterized by field emission scanning electron microscopy. The section element composition was characterized using an EDS energy spectrum analyzer. The adhesion and corrosion resistance of 15 coatings were analyzed using an automatic scratch tester and CS350 electrochemical workstation. The results showed the presence of an element penetration region between the coating and the substrate. The sandblasting pretreatment and SiC nanoparticle addition helped widen the penetration region of the elements. The Ni–P–SiC coating prepared by scanning electrodeposition on the sandblasted substrate exhibited the thickest penetration region, up to 28.39 µm. A scratch test conducted on this coating showed that it exhibits the best adhesion force, up to 36.5 N. In electrochemical corrosion experiments, its corrosion potential was found to be the highest, reaching −0.30 V, and the corrosion current density was the lowest, reaching 8.45 × 10−7 A·cm−2. The presence of the element penetration region increased the coating adhesion and improved the corrosion resistance.

Stress Development and Adhesion Behavior in Thin Ceramic Coatings Monitored by Positron Annihilation During Bending

2001 ◽  
Vol 695 ◽  
Author(s):  
R. Escobar Galindo ◽  
A. van Veen ◽  
H. Schut ◽  
N.J.M. Carvalho ◽  
C. Strondl ◽  
...  
Keyword(s):  
Low Carbon Steel ◽  
Positron Beam ◽  
Ceramic Coatings ◽  
Low Carbon ◽  
Adhesion Properties ◽  
Four Point Bending ◽  
Adhesion Behavior ◽  
Beam Analysis ◽  
Steel Substrates ◽  
First Time

ABSTRACTPositron Beam Analysis was for the first time performed in combination with a four-point bending stage. Applications of this novel technique on PVD TiN (5 m thick), WC:H (2.5 m) and CrN (1.5 m m) layers on tool steel, low carbon steel and stainless steel substrates are discussed. It appeared from PBA results that for these systems the coatings did not fail by delamination during bending. SEM confirmed that there was no decohesion but instead, cracking of the coatings was observed. In order to weaken the interface and quantify adhesion properties we propose to induce blistering based on localised gas implantation.

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