scholarly journals Preparation and Properties of Graphene/Nickel Composite Coating Based on Textured Surface of Aluminum Alloy

Materials ◽  
2019 ◽  
Vol 12 (19) ◽  
pp. 3240 ◽  
Author(s):  
Linhong Xu ◽  
Ruidong Wang ◽  
Meijie Gen ◽  
Luhua Lu ◽  
Guangchao Han
Keyword(s):  
Corrosion Resistance ◽  
Aluminum Alloy ◽  
Surface Treatment ◽  
Surface Texture ◽  
Friction And Wear ◽  
Electrochemical Corrosion ◽  
Textured Surface ◽  
Wear Properties ◽  
Corrosion Tests ◽  
Duplex Surface Treatment

This study carried out a novel duplex surface treatment on aluminum alloy base to explore the potential improvement of wear and corrosion resistance. Regular arrayed dimple surface texture (DST) and groove surface texture (GST) were fabricated by using laser processing on 6065 aluminum alloy matrix (6065Al). Electrochemical deposition of Ni and Graphene/Ni coatings on textured surface was then performed in electrolytes with concentrations of 0, 0.5, 1 and 1.5 mg graphene. Surface morphology such as diameter of dimple and width of groove measured by C-PSCN stereo microscope presents addition of graphene helps to refine and homogenize the coating. Corrosion resistant properties of the duplex surface treatment were examined by electrochemical corrosion tests and wear resistant properties were tested by UMT-Tribo Lab friction and wear tester in a dry sliding condition at room temperature. Electrochemical corrosion tests results show that the corrosion resistance of samples is related to the specific surface texture and the dimple texture can improve the electrical corrosion parameters, such as the electrode potential, greatly. Friction and wear tests show that the textured Gr/Ni electroplating coating with the 1.5 mg graphene content has best wear properties under vertical friction and each index, such as the coefficient of friction and wear trace width, are superior to other conditions of samples.

ALCAN B33S

Alloy Digest ◽  
1967 ◽  
Vol 16 (12) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Aluminum Alloy ◽  
Physical Properties ◽  
Surface Treatment ◽  
Tensile Properties ◽  
Heat Treating ◽  
Corrosion Resistant ◽  
Aluminum Company

Abstract Alcan B33S is an aluminum alloy recommended for architectural shapes requiring hard, corrosion resistant, colored finishes. It contains enough magnesium to render it heat treatable. This datasheet provides information on composition, physical properties, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: Al-170. Producer or source: Aluminum Company of Canada Ltd.

KAISER ALUMINUM ALLOY 6033

Alloy Digest ◽  
2003 ◽  
Vol 52 (11) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Shear Strength ◽  
Aluminum Alloy ◽  
Physical Properties ◽  
Surface Treatment ◽  
Tensile Properties ◽  
Heat Treating ◽  
Kaiser Aluminum ◽  
Alloy 6061

Abstract Kaiser Aluminum alloy 6033 has improved machinability over alloy 6061 with an addition of bismuth. The alloy also has a good anodizing response and higher strength than alloy 6061. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and shear strength. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: AL-386. Producer or source: Tennalum, A Division of Kaiser Aluminum.

KAISER ALUMINUM ALLOY KA62

Alloy Digest ◽  
1999 ◽  
Vol 48 (10) ◽  
Keyword(s):  
Mechanical Properties ◽  
Corrosion Resistance ◽  
Shear Strength ◽  
Aluminum Alloy ◽  
Physical Properties ◽  
Surface Treatment ◽  
Physical And Mechanical Properties ◽  
Heat Treating ◽  
Lead Free ◽  
Kaiser Aluminum

Abstract Kaiser Aluminum alloy KA62 (Tennalum alloy KA62) is a lead-free alternative to 6262. It offers good machinability and corrosion resistance and displays good acceptance of coatings (anodize response). It can be used in place of 6262 because its physical and mechanical properties are equivalent to those of 6262 (see Alloy Digest Al-361, September 1999). This datasheet provides information on composition, physical properties, hardness, tensile properties, and shear strength. It also includes information on corrosion resistance as well as forming, heat treating, machining, and surface treatment. Filing Code: AL-362. Producer or source: Tennalum, A Division of Kaiser Aluminum.

KAISER ALUMINUM ALLOY 6262

Alloy Digest ◽  
1999 ◽  
Vol 48 (9) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Shear Strength ◽  
Aluminum Alloy ◽  
Physical Properties ◽  
Surface Treatment ◽  
Tensile Properties ◽  
Heat Treating ◽  
Kaiser Aluminum ◽  
Automotive Parts

Abstract Kaiser Aluminum alloy 6262 (Tennalum alloy 6262) is an Al-Mg-Si-Cu-Cr-Pb-Bi alloy with characteristic good machinability and corrosion resistance and a good acceptance of coatings (anodize response). It is typically used in automotive parts, fittings, building hardware, and valve components. This datasheet provides information on composition, physical properties, tensile properties, and shear strength as well as fatigue. It also includes information on forming, heat treating, machining, joining, and surface treatment. Filing Code: AL-361. Producer or source: Tennalum, A Division of Kaiser Aluminum.

Friction, wear, and fatigue analysis for micro-textured cemented carbide

2019 ◽  
Vol 233 (17) ◽  
pp. 5989-6004 ◽  
Author(s):  
Xin Tong ◽  
Shucai Yang ◽  
Xianli Liu ◽  
Weiwei Liu ◽  
Chunsheng He
Keyword(s):  
Smooth Surface ◽  
Friction And Wear ◽  
Processing Parameters ◽  
Textured Surface ◽  
Surface Phase ◽  
Textured Surfaces ◽  
Wear Properties ◽  
Fatigue Wear ◽  
Optimal Processing ◽  
Cutting Processes

In the research regarding laser-processed micro-textured carbide tool surfaces, there remains a lack of research on the relationship between micro-textured preparation processes and the degree of fatigue wear experienced by micro-textured surfaces. To study the effect of a laser-textured surface on the friction and wear properties of friction pairs, it first of all conducted friction and wear tests to obtain optimal processing parameters. By using a scanning electron microscope, the fatigue wear mechanism for a micro-textured surface was observed. Experimental results based on fatigue wear theory show that a micro-textured surface phase has better fatigue resistance than a smooth surface. Under the same friction conditions and selected test parameters, a micro-textured surface phase can reduce the maximum fatigue and friction wear of a smooth surface by 38.4%. This study provides a theoretical basis and source of reference for the rational formulation of micro-texture parameters and improvements in the performance of micro-textures during cutting processes.

Effect of Bismuth on the Microstructure and Corrosion Resistance of Galvanized Coating

2011 ◽  
Vol 391-392 ◽  
pp. 1183-1188 ◽  
Author(s):  
Jian Hua Wang ◽  
Xing Ming Wang ◽  
Chun Mei Liu ◽  
Xu Ping Su ◽  
Chang Jun Wu ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Electrochemical Corrosion ◽  
Energy Dispersive ◽  
Phase Layer ◽  
Corrosion Tests ◽  
X Ray ◽  
Galvanized Coating ◽  
Scanning Electron

The microstructure of the galvanized coating was investigated using scanning electron microscope equipped with energy dispersive X-ray spectroscope. The immersing and electrochemical corrosion tests were carried out to study the corrosion resistance of the galvanized coating. The addition of Bi in Zn-bath affects remarkably the morphology of the galvanized coating. The thickness of δ + ζ phase layer in the coating reaches the maximum when the content of Bi in Zn-bath is 0.5 wt.%. The corrosion resistance of the galvanized coating declines with the increase of the content of Bi.

Research on Friction and Wear Properties of Plasma Spraying Ni-Base Alloy Coatings on Aluminum Alloy Surfaces

2012 ◽  
Vol 538-541 ◽  
pp. 207-213 ◽  
Author(s):  
Long He ◽  
Ye Fa Tan ◽  
Bin Cai ◽  
Hua Tan ◽  
Li Gao ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Abrasive Wear ◽  
Plasma Spraying ◽  
Intermediate Layer ◽  
Friction And Wear ◽  
Base Alloy ◽  
Wear Loss ◽  
Wear Properties ◽  
Fatigue Wear ◽  
Friction And Wear Properties

In order to improve the wear resistance and extend service life of aluminum alloy parts, the Ni-base alloy anti-wear coatings were prepared on the surfaces of 7A05 aluminum alloy by plasma spraying technology. The microstructure and interface of the coatings were analyzed, and the friction and wear properties of Ni-base alloy coatings and aluminum alloy substrates were investigated under dry friction condition at room temperature. The research results show that the main phases of Ni-base alloy coating are γ-Ni, CrB and Cr23C6. The thicknesses of diffusion layers existing between intermediate layer and coating, intermediate layer and substrate are respectively 15μm and 20μm. The bonding types of the coating and the substrate are mechanical combination accompanied with partially metallurgical combination. When wore against GCr15 steel balls, the average friction coefficient of the Ni-base alloy coatings is 11.6% lower than that of the aluminum alloy substrates, and the average wear loss of the former is 9.3mg, which is only 1/3 of that of the latter. With the increase of loads, the wear mechanisms of the Ni-base alloy coatings change from slightly micro-cutting wear and fatigue wear to abrasive wear and micro-fracture wear, while those of the aluminum alloy substrates are mainly adhesive wear and abrasive wear as well as slight oxidation wear.

Investigation in the Influence of Surface Treatment on Mechanical and Electrochemical Corrosion Properties of Ti-6Al-4V Alloy

2017 ◽  
Vol 893 ◽  
pp. 350-353 ◽  
Author(s):  
Zhe Rui Huang ◽  
Yu Lin Li ◽  
Qing Dong Zhong ◽  
Chen Xiao ◽  
Hui Li ◽  
...  
Keyword(s):  
Mechanical Property ◽  
Corrosion Resistance ◽  
Titanium Alloy ◽  
Surface Treatment ◽  
Electrochemical Corrosion ◽  
Compound Layer ◽  
Cell Reaction ◽  
Corrosion Properties ◽  
Layer Sample ◽  
Two Phases

Potential difference between two phases in the Ti-6Al-4V alloy results in the galvanic cell reaction and corrosion. In order to improve the properties of Ti-6Al-4V, it was treated under different temperature with the atmosphere of 5vol. % oxygen and 95 vol. % nitrogen. The results showed that the titanium alloy surface is formed a layer of oxide and nitride compound layer. Sample treated at the temperature of 800°C had the most outstanding corrosion resistance and mechanical property.

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