scholarly journals Surface Modification of EN353 Gear Material by Chromium Plating and Plasma Nitriding to Improve Surface Properties, Corrosion and Wear Resistance

2022 ◽  
pp. ArticleID:220146
Author(s):  
S Lakshmi Sankar ◽  
Keyword(s):  
Wear Resistance ◽  
Surface Modification ◽  
Surface Properties ◽  
Plasma Nitriding ◽  
Corrosion And Wear ◽  
Chromium Plating

Improved corrosion and wear resistance of Mg alloys via laser surface modification of Al on AZ31B

2012 ◽  
Vol 206 (8-9) ◽  
pp. 2308-2315 ◽  
Author(s):  
Sameer R. Paital ◽  
Ananya Bhattacharya ◽  
Marco Moncayo ◽  
Yee Hsien Ho ◽  
Kristopher Mahdak ◽  
...  
Keyword(s):  
Wear Resistance ◽  
Surface Modification ◽  
Corrosion And Wear ◽  
Laser Surface ◽  
Mg Alloys ◽  
Laser Surface Modification

The Emergence of Cold Spray as a Tool for Surface Modification

2008 ◽  
Vol 384 ◽  
pp. 61-74 ◽  
Author(s):  
Kevin Spencer ◽  
Ming Xing Zhang
Keyword(s):  
Wear Resistance ◽  
Surface Modification ◽  
Electrical Properties ◽  
Cold Spray ◽  
Gas Dynamics ◽  
Corrosion And Wear ◽  
Surface Adhesion ◽  
Coating Technology ◽  
Spray Coatings ◽  
Thermal And Electrical Properties

Cold spray is an emerging coating technology that allows hardness, corrosion and wear resistance, as well as thermal and electrical properties of surfaces to be optimised. The advantages of cold spray over thermal spray are discussed, with emphasis on a new cold spray variant called Kinetic Metallization. The influence of gas dynamics on surface adhesion are examined. Examples from the literature and from the present work of corrosion and wear resistance, bond strength and cohesive strength of cold spray coatings are reviewed.

Modification of Silumin Using the Electroexplosive Method

2017 ◽  
Vol 906 ◽  
pp. 56-62
Author(s):  
Anatolii A. Klopotov ◽  
Yu.F. Ivanov ◽  
E.A. Petrikova ◽  
V.E. Gromov ◽  
Yu.A. Kakushkin
Keyword(s):  
Wear Resistance ◽  
Surface Modification ◽  
Phase Composition ◽  
Friction Coefficient ◽  
Surface Properties ◽  
Thermodynamic Analysis ◽  
Aluminum Foil ◽  
Electrical Explosion ◽  
Equilibrium Conditions ◽  
Physical Mechanisms

Surface modification of silumin of the grade AK12 with plasma formed during an electrical explosion of aluminum foil with a sample of yttrium oxide powder placed in the explosion region (the electroexplosive doping method) is carried out. The thermodynamic analysis of the system Al-Si-Y-O is carried out. The phases formed in this system under equilibrium conditions are revealed. Investigations of the elemental and phase composition and the defective substructure are carried out. Mechanical (microhardness) and tribological (wear resistance and friction coefficient) tests of the modified material are performed. The physical mechanisms responsible for multiple enhancement of surface properties of the modified silumin samples are revealed.

Surface Modification Effects on Microstructure and Mechanical Properties of Bio-Titanium Alloys

2017 ◽  
Vol 909 ◽  
pp. 199-204 ◽  
Author(s):  
Ahmed Zaki ◽  
Shimaa El-Hadad ◽  
Waleed Khalifa
Keyword(s):  
Mechanical Properties ◽  
Wear Resistance ◽  
Surface Modification ◽  
Titanium Alloys ◽  
Thermal Oxidation ◽  
Surface Properties ◽  
Equiaxed Microstructure ◽  
Hard Layer ◽  
Β Phase ◽  
Ti64 Alloy

Ti-6Al-7Nb (Ti67) alloy has recently been developed to replace the commercial Ti6Al4V (Ti64) alloy because of the reported cytoxicity of vanadium. Surface modification by thermal oxidation is used to enhance the hardness and wear resistance of such titanium alloys. Since Ti67 alloy contains Nb as β phase stabilizer instead of V in Ti64, it is expected to behave differently upon processing by thermal oxidation. Therefore, it is of interest to compare the response of the two alloys to thermal oxidation in terms of hardness and wear resistance. Forged and cast samples were used to study the influence of the microstructure on the surface properties after oxidation. The forged samples with their equiaxed microstructure showed a well developed sub-surface hard layer (α-case) compared to the cast structure for the two alloys. The thickness of this case in Ti64 after oxidation at (900-1100 °C) was greater than in Ti67. This resulted in higher wear resistance of the Ti64 alloy relative to Ti67. These results are worth considering when designing implants for joints replacement.

Study on the Performances Properties of Medical Pure Magnesium by Ion Implantation of Nitrogen

2017 ◽  
Vol 1142 ◽  
pp. 31-36
Author(s):  
De Weng Tang ◽  
Wen Ming Zhang ◽  
Rui Lan Zhao ◽  
Xi Jian Lv
Keyword(s):  
Wear Resistance ◽  
Ion Implantation ◽  
Surface Properties ◽  
Corrosion And Wear ◽  
Pure Magnesium ◽  
Process Conditions ◽  
Implantation Energy ◽  
Chemical Corrosion ◽  
Nitrogen Ion Implantation ◽  
Nitrogen Ion

To improve medical pure magnesium corrosion and wear resistance, the advanced plasma implantation technology were used to implanted medical pure magnesium with nitrogen ions under certain conditions, obtaining a certain depth of nitrogen ion implantation layer, and to study the surface properties of the implantation layer. The sample after ion implanted, the surface morphology, phase composition were analyzed, and have electro chemical corrosion tests, friction and wear tests, the results showed that: pure magnesium by nitrogen ion implantation, can be obtained a surface organizations which whole flat, compact, no surface cracks and holes; the surface implantation layer mainly composed of Mg and MgO, also found a small amount of Mg3N2, which is also the main reason for corrosion and wear resistance improved; compared to pure magnesium base, nitrogen ion implantation (process conditions: implantation energy: 40KeV, implantation dose: 3×1017ions/cm2, control temperature: 200°C) improved the corrosion resistance of the sample, but not obvious, about 1.2%; however, the friction coefficient decreased significantly, approximately 61%, the amount of wear also reduced significantly, about 74%, this means that, its wear resistance has been improved significantly. This study provides a reference to improve the surface properties of pure magnesium and be learned to develop a more reasonable parameters for further study of medical pure magnesium by ion implantation of nitrogen.

Material condition tailored to plasma nitriding process for ensuring corrosion and wear resistance of austenitic stainless steel

2013 ◽  
Vol 228 ◽  
pp. S615-S618 ◽  
Author(s):  
Katharina Köster ◽  
Peter Kaestner ◽  
Günter Bräuer ◽  
Holger Hoche ◽  
Torsten Troßmann ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Wear Resistance ◽  
Austenitic Stainless Steel ◽  
Plasma Nitriding ◽  
Corrosion And Wear ◽  
Nitriding Process ◽  
Material Condition

DELTALLOY 4032

Alloy Digest ◽  
1998 ◽  
Vol 47 (4) ◽  
Keyword(s):  
Wear Resistance ◽  
Thermal Expansion ◽  
Physical Properties ◽  
Surface Treatment ◽  
Tensile Properties ◽  
Surface Finish ◽  
Coefficient Of Thermal Expansion ◽  
Single Point ◽  
High Strength ◽  
Corrosion And Wear

Abstract Deltalloy 4032 has good machinability and drilling characteristics when using single-point or multispindle screw machines and an excellent surface finish using polycrystalline or carbide tooling. The alloy demonstrates superior wear resistance and may eliminate the need for hard coat anodizing. Deltalloy 4032 is characterized by high strength and a low coefficient of thermal expansion. This datasheet provides information on composition, physical properties, and tensile properties. It also includes information on corrosion and wear resistance as well as machining and surface treatment. Filing Code: AL-347. Producer or source: ALCOA Wire, Rod & Bar Division.

TRIBALOY ALLOY T-900

Alloy Digest ◽  
1996 ◽  
Vol 45 (10) ◽  
Keyword(s):  
Wear Resistance ◽  
Crack Resistance ◽  
Base Alloy ◽  
Corrosion And Wear ◽  
Laves Phase ◽  
Preheat Temperature ◽  
Corrosion Resistant ◽  
Cobalt Base Alloy ◽  
Cobalt Base

Abstract Tribaloy alloy T-900 is a cobalt-base alloy derived from an alloy family originally developed by DuPont. Excessive amounts of molybdenum and silicon induce the formatin during solidification of a hard and corrosion-resistant intermetallic coumpound, known as Laves phase. This alloy had improved crack resistance and a lower preheat temperature compared with Tribaloy T-800 (Alloy Digest Co-99, September 1996). This datasheet provides information on composition, microstructure, and hardness. It also includes information on corrosion and wear resistance. Filing Code: CO-100. Producer or source: Stoody Deloro Stellite Inc.

ENPLATE NI-423

Alloy Digest ◽  
1986 ◽  
Vol 35 (11) ◽  
Keyword(s):  
Wear Resistance ◽  
Physical Properties ◽  
Surface Treatment ◽  
High Speed ◽  
Chemical Reduction ◽  
Electronic Devices ◽  
Electroless Nickel ◽  
Heat Treating ◽  
Corrosion And Wear ◽  
Phosphorus Alloy

Abstract ENPLATE NI-423 is a nickel-phosphorus alloy deposited by chemical reduction without electric current. It is deposited by a stable, relatively high-speed functional electroless nickel process that produces a low-stress coating with good ductility and excellent resistance to corrosion. Its many uses include equipment for chemicals and food, aerospace components, molds and electronic devices. This datasheet provides information on composition, physical properties, and hardness. It also includes information on corrosion and wear resistance as well as heat treating, machining, joining, and surface treatment. Filing Code: Ni-343. Producer or source: Enthone Inc..

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