Efficient fabrication and characterization of Ni-Fe-WC composite coatings with high corrosion resistance

Silicon nitride is a covalent ceramic material of high corrosion resistance and mechanical stability at elevated temperatures. Due to these properties, its use in metallurgical processes, such as the casting of alloys, is increasing. Therefore, the characterization of the interface between Si3N4 and the casted metal is of great importance to investigate possible interactions, which might deteriorate the ceramic mould or contaminate the metal. In this work, the use of Si3N4 as crucible material for Al-casting has been studied, by investigating the corrosion attack of liquid Al at a temperature of 1150 ºC during 30 days in air. The interface was characterized by X-ray diffraction, scanning electron microscopy and energy dispersive spectroscopy. It has been found that due to superficial oxidation two oxide layers form - SiO2 on Si3N4 and Al2O3 on Al - which effectively hinder further reactions under the conditions studied, confering high corrosion resistance to the Si3N4 crucible.

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Vacuum Nanotechnology. Synthesis of New Materials and Characterization of Surfaces and Interfaces. Development of Ion Beam Deposition Technique and Formation of High Corrosion Resistance Fe Films.

Shinku ◽

10.3131/jvsj.41.940 ◽

1998 ◽

Vol 41 (11) ◽

pp. 940-949

Author(s):

Kiyoshi MIYAKE

Keyword(s):

Corrosion Resistance ◽

Ion Beam ◽

Deposition Technique ◽

New Materials ◽

High Corrosion Resistance ◽

High Corrosion ◽

Ion Beam Deposition ◽

Surfaces And Interfaces ◽

Beam Deposition

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BRIMCOLLOY

Alloy Digest ◽

10.31399/asm.ad.cu0225 ◽

1971 ◽

Vol 20 (1) ◽

Keyword(s):

Corrosion Resistance ◽

Physical Properties ◽

Surface Treatment ◽

Tensile Properties ◽

High Strength ◽

Heat Treating ◽

High Corrosion Resistance ◽

Rolling Mills ◽

High Corrosion ◽

Copper Zinc

Abstract BRIMCOLLOY is a copper-zinc tin alloy having high strength, spring temper, superior conductivity and high corrosion resistance. It is produced in three grades: BRIMCOLLOY 100, BRIMCOLLOY 200, and BRIMCOLLOY 300. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: Cu-225. Producer or source: Bridgeport Rolling Mills Company.

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HASTELLOY ALLOY F

Alloy Digest ◽

10.31399/asm.ad.ni0030 ◽

1956 ◽

Vol 5 (12) ◽

Keyword(s):

Fracture Toughness ◽

Corrosion Resistance ◽

Physical Properties ◽

Tensile Properties ◽

Cold Working ◽

Iron Alloy ◽

Heat Treating ◽

High Corrosion Resistance ◽

High Corrosion ◽

Nickel Chromium

Abstract HASTELLOY ALLOY-F is a nickel-chromium-molybdenum-iron alloy having high corrosion resistance and possessing satisfactory hot and cold working characteristics. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness and creep. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Ni-30. Producer or source: Haynes Stellite Company.

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UGI 209

Alloy Digest ◽

10.31399/asm.ad.ss1192 ◽

2014 ◽

Vol 63 (11) ◽

Keyword(s):

Stainless Steel ◽

Corrosion Resistance ◽

Austenitic Stainless Steel ◽

Physical Properties ◽

Surface Treatment ◽

Tensile Properties ◽

Magnetic Permeability ◽

Heat Treating ◽

High Corrosion Resistance ◽

High Corrosion

Abstract UGI 209 is an austenitic stainless steel with high corrosion resistance and a low magnetic permeability. This datasheet provides information on composition, physical properties, microstructure, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: SS-1192. Producer or source: Schmolz + Bickenbach USA Inc..

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Fabrication and Characterization of Antimicrobial Magnetron Cosputtered TiO2/Ag/Cu Composite Coatings

Coatings ◽

10.3390/coatings11040473 ◽

2021 ◽

Vol 11 (4) ◽

pp. 473

Author(s):

Dilyana Gospodonova ◽

Iliana Ivanova ◽

Todorka Vladkova

Keyword(s):

Antimicrobial Activity ◽

Composite Coatings ◽

Surface Characteristics ◽

Standard Test ◽

Most Probable Number ◽

Bacterial Strains ◽

Probable Number ◽

Fabrication And Characterization

The aim of this study was to prepare TiO2/Ag/Cu magnetron co-sputtered coatings with controlled characteristics and to correlate them with the antimicrobial activity of the coated glass samples. The elemental composition and distribution, surface morphology, wettability, surface energy and its component were estimated as the surface characteristics influencing the bioadhesion. Well expressed, specific, Ag/Cu concentration-dependent antimicrobial activity in vitro was demonstrated toward Gram-negative and Gram-positive standard test bacterial strains both by diffusion 21 assay and by Most Probable Number of surviving cells. Direct contact and eluted silver/coper nanoparticles killing were experimentally demonstrated as a mode of the antimicrobial action of the studied TiO2/Ag/Cu thin composite coatings. It is expected that they would ensure a broad spectrum bactericidal activity during the indwelling of the coated medical devices and for at least 12 h after that, with the supposition that the benefits will be over a longer time.

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