Anti-corrosion and Wear Properties of Binary Ni–P/Cow Horn Particulate Composite Coatings on Mild Steel via Electroless Method

Titanium diboride (TiB2) and titanium carbonitride (Ti(C,N)) coatings are widely used as reinforcing materials in applications demanding high corrosion and wear resistance. In this paper, plain carbon steel has been surface alloyed with TiB2 by plasma transferred arc (PTA) technique using two different gas atmospheres. The first metal matrix composite (MMC) is produced with TiB2 particles and argon as shielding and plasma gas. In addition, a mixture of Ar and 5% N2 was used as shielding and plasma gas for producing of second MMC coating. The microstructure of both alloyed layers consists of primary titanium boride particles surrounded by a eutectic matrix, containing ferrite, eutectic boride, and titanium carbonitrides. The presence of these carbonitrides is more intense in the case of the N-enriched alloyed layer, as it was also proved via X-ray Diffraction. The alloyed layers are susceptible to pitting corrosion in 3.5% NaCl or 1 N H2SO4. The alloyed layer produced with nitrogen mixture gas is slightly more noble than the one produced with pure Ar. The metallic-ferritic matrix corrodes in 6% FeCl3∗6H2O leaving TiB2 particles protruding from the matrix. The wear performance of both TiB2 MMC depends on the counterbody (tool steel or alumina ball).

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CORROSION AND WEAR PROPERTIES OF ELECTRODEPOSITED TERTIARY NANOCOMPOSITE Zn–Ni (ALUMINA–YITTRIA–GERAPHENE) COATING

Surface Review and Letters ◽

10.1142/s0218625x17500664 ◽

2016 ◽

Vol 24 (05) ◽

pp. 1750066 ◽

Cited By ~ 1

Author(s):

HAMED RAHMANI ◽

MAHMOOD ALIOFKHAZRAEI ◽

ABDOSSALAM KARIMZADEH

Keyword(s):

Duty Cycle ◽

Zinc Sulphate ◽

Pulse Current ◽

Corrosion And Wear ◽

Pulsed Current ◽

Passive Current Density ◽

Wear Properties ◽

Nickel Zinc ◽

Pulsed Electrodeposition ◽

Passive Current

Nanocomposite Ni–Zn coatings containing 80 wt.% Al2O3, 5 wt.% Y2O3 and 15 wt.% graphene were fabricated by pulsed electrodeposition method in nickel–zinc sulphate-based electrolyte and effects of pulse current parameters on nickel and other element contents, microstructure, resistance to corrosion and tribological properties of the coatings were investigated. The pulsed current with duty cycle from 10% to 50% was applied to different samples and frequency changed gradually from 500 to 4000[Formula: see text]Hz in five steps during coating process. Increasing the duty cycle led to decrease of absorbed nanoparticles in the surface of the coatings from 4.4 vol% to 3.58 vol% The sample coated with 10% duty cycle had utmost alumina content in the coating surface, 3.5 vol% in first layer up to 4.4 vol% in fifth layer. The sample coated with 30% duty cycle had higher corrosion resistance with passive current density of 2.5[Formula: see text]mA/cm2. Furthermore, the results showed that by increasing the duty cycle, wear rate had been increased up to 1.3[Formula: see text][Formula: see text][Formula: see text]10[Formula: see text][Formula: see text]mm2/N[Formula: see text]m.

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The effects of dilution upon the corrosion and wear properties of cobalt-based weld overlays

Corrosion Science ◽

10.1016/0010-938x(93)90200-z ◽

1993 ◽

Vol 35 (1-4) ◽

pp. 647-653 ◽

Cited By ~ 5

Author(s):

P. Crook

Keyword(s):

Corrosion And Wear ◽

Wear Properties ◽

Weld Overlays

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Investigation of the friction and wear properties of Ti/TiB 2 /MoS 2 graded-composite coatings deposited by CFUBMS under air and vacuum conditions

Surface and Coatings Technology ◽

10.1016/j.surfcoat.2014.07.033 ◽

2014 ◽

Vol 260 ◽

pp. 310-315 ◽

Cited By ~ 7

Author(s):

Özlem Baran ◽

Faruk Bidev ◽

Hikmet Çiçek ◽

Levent Kara ◽

İhsan Efeoğlu ◽

...

Keyword(s):

Friction And Wear ◽

Composite Coatings ◽

Wear Properties ◽

Friction And Wear Properties

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Investigation of in situ synthesized TiB2 particles in iron-based composite coatings processed by hybrid submerged arc welding

Materials Testing ◽

10.1515/mt-2020-0104 ◽

2021 ◽

Vol 63 (7) ◽

pp. 630-638

Author(s):

Mustafa Kaptanoglu ◽

Mehmet Eroglu

Keyword(s):

Arc Welding ◽

Composite Coatings ◽

Tib2 Particle ◽

Submerged Arc Welding ◽

Wear Properties ◽

Gas Atmosphere ◽

Iron Based ◽

Tib2 Particles ◽

Submerged Arc

Abstract In the study for this contribution, production of in situ synthesized TiB2 particles in iron-based composite coatings using four different submerged arc welding powders (fluxes) containing increasing amounts of ferrotitanium and ferroboron with S1 welding wire, were targeted. For this purpose, coating deposition was carried out to improve the hardness and wear properties of the AISI 1020 steel surfaces using hybrid submerged arc welding. In hybrid submerged arc welding, the welding pool is protected by both welding powders and an argon gas atmosphere. To examine the composite coatings, visual, chemical, microstructural analyses and hardness and wear tests were carried out. With the use of increasing amounts of ferrotitanium and ferroboron in the welding powders, it was observed that the microstructure of the coatings changed in terms of TiB2 particle geometries such as rectangular and hexagonal; volume fractions of TiB2 particles in the coating microstructures increased; hardness values of coatings were enhanced from 34 HRC to 41 HRC; the wear resistance of the coatings improved, and worn surface images of the coatings caused by the counter body changed from continuous with deep scratches to discontinuous with fine scratches and crater cavities.

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