scholarly journals Hard Anodization Film on Carbon Steel Surface by Thermal Spray and Anodization Methods

Materials ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3580
Author(s):  
Pao-Chang Chiang ◽  
Chih-Wei Chen ◽  
Fa-Ta Tsai ◽  
Chung-Kwei Lin ◽  
Chien-Chon Chen
Keyword(s):  
Corrosion Resistance ◽  
Carbon Steel ◽  
Steel Surface ◽  
Steel Substrate ◽  
Substrate Surface ◽  
Aluminum Film ◽  
Medium Carbon Steel ◽  
Aisi 1045 Steel ◽  
Aisi 1045 ◽  
1045 Steel

In this paper, we used two mass-produced industrial technologies, namely, thermal spraying and anodization methods, to enhance the surface characteristics of AISI 1045 medium carbon steel for use in special environments or products. The anodic film can effectively improve the surface properties of carbon steel. A sequence of treatments of the carbon steel substrate surface that consist of sandblasting, spraying the aluminum film, annealing, hot rolling, cleaning, grinding, and polishing can increase the quality of the anodized film. This paper proposes an anodization process for the surface of carbon steel to increase the corrosion resistance, hardness, color diversification, and electrical resistance. The resulting surface improves the hardness (from 170 HV to 524 HV), surface roughness (from 1.26 to 0.15 μm), coloring (from metal color to various colors), and corrosion resistance (from rusty to corrosion resistant). The electrochemical corrosion studies showed that the AISI 1045 steel surface with a hard anodized film had a lower corrosion current density of 10−5.9 A/cm2 and a higher impedance of 9000 ohm than those of naked AISI 1045 steel (10−4.2 A/cm2 and 150 ohm) in HCl gas.

The Effect of Airflow Speed as Cooling Media in the Hardening Process to the Hardness, Corrosion Rate and Fatigue Life of Medium Carbon Steel

2021 ◽  
Vol 1045 ◽  
pp. 40-49
Author(s):  
Sunardi Sunardi ◽  
Rina Lusiani ◽  
Erny Listijorini ◽  
Ruddy Santoso ◽  
Iman Saefuloh
Keyword(s):  
Fatigue Life ◽  
Barium Carbonate ◽  
Surface Hardness ◽  
Medium Carbon Steel ◽  
Holding Time ◽  
Material Surface ◽  
Airflow Rate ◽  
Aisi 1045 Steel ◽  
Aisi 1045 ◽  
1045 Steel

Carburizing is a method for obtaining a sturdy material surface. This hard surface is used for machine elements that intersect with other materials, so failure due to wear can be avoided. However, this increase in hardness has always been followed by decreased ductility. This condition certainly lowers the fatigue life of the material. For that, it is necessary to compromise between surface hardness and ductility. This study used AISI 1045 steel, which has a surface roughness of 0.4 and 4.7 μm with carburation media used, is a mixture of 80% coconut shell charcoal and 20% Barium carbonate. The sample was given the pack carburization treatment at 850°C and holding time for 3 hours, and then cooled in the open air. The samples were reheated at 850°C, holding time for 17 minutes, and then cooled with airflow at speeds of 10.34, 15.51, and 20.06 m/s for 30 minutes. This research shows that the surface of steel with a roughness of 0.4 μm has excellent performance with the hardness and corrosion level respectively 228.6 HV and 2.3586 mpy at cooling airflow rate of 20.06 m/s while the fatigue life of material occurs at the speed of airflow cooling 10.43 m/s.

Cermet ESD coatings modified by laser treatment

2012 ◽  
Vol 57 (3) ◽  
pp. 665-670 ◽  
Author(s):  
N. Radek ◽  
N. Konstanty
Keyword(s):  
Surface Roughness ◽  
Corrosion Resistance ◽  
Powder Metallurgy ◽  
Carbon Steel ◽  
Laser Treatment ◽  
Vickers Microhardness ◽  
Steel Substrate ◽  
Substrate Surface ◽  
Wear Resistant Coatings ◽  
Powder Metallurgy Route

The main objective of the present work was to determine the influence of laser treatment on microstructure, microhardness, roughness, bonding strength, corrosion resistance and tribological properties of wear resistant coatings produced on C45 carbon steel by the electro-spark deposition (ESD) process. Consumable WC-Co-Al2O3 electrodes were prepared by the powder metallurgy route and transferred to the substrate surface using the EIL-8A apparatus. The cermet layers were subsequently melted by means of the BLS 720 Nd:YAG laser. The coating characterisation studies showed marked improvements in the bonding between the steel substrate and the cermet coating, and in corrosion resistance at the expense of higher surface roughness and minor drop in the Vickers microhardness.

Microstructure and Properties of In Situ Synthesized Composite Coating by Tungsten Inert Gas Cladding

2011 ◽  
Vol 314-316 ◽  
pp. 296-299 ◽  
Author(s):  
Li Ping Zhao ◽  
Zong De Liu ◽  
Bin Li
Keyword(s):  
Ceramic Coating ◽  
Steel Substrate ◽  
Composite Coatings ◽  
Inert Gas ◽  
Maximum Hardness ◽  
Aisi 1045 Steel ◽  
Aisi 1045 ◽  
1045 Steel ◽  
Particulate Reinforced

Ceramic particulate-reinforced Ni-based composite coatings are commonly used in the industry for protection against wear. With an aim to investigate the properties of this coating, ceramic coating reinforced by in-situ synthesized (Ti,Cr,Nb,Mo)xCy particles was prepared on AISI 1045 steel substrate by tungsten insert gas cladding. The microstructure and microhardness of the coatings were analyzed by scanning electron microscopy (SEM) and microhardness tester. The results showed that excellent bonding between the coating and the AISI 1045 steel substrate was uniform, continuous and almost defect-free. The maximum hardness value achieved 1013HV, which is about 5 times compared to that of the AISI 1045 steel substrate.

Influence of ball-burnishing on roughness, hardness and corrosion resistance of AISI 1045 steel

2018 ◽  
Vol 339 ◽  
pp. 191-198 ◽  
Author(s):  
Alberto Saldaña-Robles ◽  
Héctor Plascencia-Mora ◽  
Eduardo Aguilera-Gómez ◽  
Adriana Saldaña-Robles ◽  
Alfredo Marquez-Herrera ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Ball Burnishing ◽  
Aisi 1045 Steel ◽  
Aisi 1045 ◽  
1045 Steel

Effect of Different Particles Distribution on Microstructure and Corrosion Resistance of Nickel-Base Laser Cladding Coatings

2011 ◽  
Vol 291-294 ◽  
pp. 2983-2986
Author(s):  
Yang Xiao Lu Cao ◽  
Ming Xing Ma ◽  
Qi Wen Wu ◽  
Xiao Yang Ye ◽  
Wen Jin Liu ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Laser Cladding ◽  
Distribution Density ◽  
Particle Distribution ◽  
Area Ratio ◽  
Aisi 1045 Steel ◽  
Aisi 1045 ◽  
Base Composite ◽  
Nickel Base ◽  
1045 Steel

Nickel-base composite coating reinforced by in situ synthesized multiple carbide particles were fabricated on AISI 1045 steel surface by pre-placed laser cladding. Nowadays most researches focus on the wear resistance. This study mainly focuses on the corrosion resistance property. Investigate the effect of different particle distribution on corrosion resistance of the cladding layers by controlling the amount of Zr, Ti and WC. The microstructure and electrochemical property are analyzed by scanning electron microscope (SEM) and electrochemical test equipment. The maximal particle distribution density and particle area ratio appear when Zr:Ti:WC=1:2:2. The polarization curves show that in 0.05mol/L HCl electrolyte the coatings’ corrosion resistance have positive correlation with particles distribution density and particles area ratio, and all the coatings are significantly better than 314L stainless steel in corrosion resistance.

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