CORROSION RESISTANCE AND ANTI-CORROSION CHARACTERISTICS OF INTERFACE BETWEEN Al-5Mg THERMAL SPRAYED COATING AND HEAVY DUTY PAINT COATING IN AIRBORNE SEA SALT ENVIRONMENT

2021 ◽  
Vol 77 (1) ◽  
pp. 180-198
Author(s):  
Shigenobu KAINUMA ◽  
Haoxuan YANG ◽  
Muye YANG ◽  
Kazuyoshi MUTO ◽  
Hirokazu MIYATA
Keyword(s):  
Corrosion Resistance ◽  
Sea Salt ◽  
Heavy Duty ◽  
Paint Coating ◽  
Sprayed Coating

ANACONDA ALLOY (C) 521

Alloy Digest ◽  
1979 ◽  
Vol 28 (10) ◽  
Keyword(s):  
Mechanical Properties ◽  
Corrosion Resistance ◽  
Physical Properties ◽  
Tensile Properties ◽  
Heat Treating ◽  
Heavy Duty ◽  
Bronze Alloy ◽  
Good Corrosion Resistance ◽  
Bridge Bearing

Abstract ANACONDA Alloy (C) 521 is the phosphor bronze used where the highest demand is made for resilience, strength and resistance to fatigue. It has generally higher mechanical properties than Anaconda Alloy (A) 510 which is the most widely used phosphor bronze. Alloy (C) 521 has excellent to good corrosion resistance in most environments. Typical applications include heavy-duty springs, bridge bearing plates and heavy-duty cold-headed parts. 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, and joining. Filing Code: Cu-381. Producer or source: Anaconda American Brass Company.

AISI 9260

Alloy Digest ◽  
1964 ◽  
Vol 13 (9) ◽  
Keyword(s):  
Fracture Toughness ◽  
Corrosion Resistance ◽  
Physical Properties ◽  
Tensile Properties ◽  
Alloy Steel ◽  
Heat Treating ◽  
Spring Steel ◽  
Heavy Duty ◽  
Steel Mills ◽  
Machine Parts

Abstract AISI 9260 is an oil-hardening type of spring steel and tool steel recommended for repeated and severe impact service. It is also used for heavy duty, shock resistant machine parts. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SA-167. Producer or source: Alloy steel mills and foundries.

UNS H86170

Alloy Digest ◽  
1988 ◽  
Vol 37 (12) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Physical Properties ◽  
Tensile Properties ◽  
Alloy Steel ◽  
Heat Treating ◽  
Low Carbon ◽  
Heavy Duty ◽  
Good Strength ◽  
Nickel Chromium ◽  
Steel Mills

Abstract UNS H-86170 is a low-carbon nickel-chromium-molybdenum carburizing steel of good hardenability. Its core is characterized by good strength and toughness. It is recommended for heavy-duty applications such as cams, chains, fasteners, gears, shafts and piston pins. 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, and joining. Filing Code: SA-435. Producer or source: Alloy steel mills and foundries.

ALLOY STEEL 3.5Ni-1.8Cr-0.4Mo-0.1V

Alloy Digest ◽  
1984 ◽  
Vol 33 (12) ◽  
Keyword(s):  
Fracture Toughness ◽  
Corrosion Resistance ◽  
Alloy Steel ◽  
Brittle Failure ◽  
Water Immersion ◽  
Heat Treating ◽  
Water Spray ◽  
Heavy Duty ◽  
High Hardenability ◽  
Steel Mills

Abstract Alloy Steel 3.5Ni-1.8Cr-0.4Mo-0.1V is highly suitable for massive components, usually more than four inches thick. It has high hardenability which in a water-spray or water-immersion quench contributes to the formation of sizeable amounts of martensite along with some bainite, and possibly a little ferrite. On tempering, the martensite adds to toughness and lowers the temperature of transition from tough to brittle failure. This steel is suitable for intermediate-duty and heavy-duty generator and turbine rotors, large axles and shafts, large gears and ship forgings. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance as well as forming, heat treating, and machining. Filing Code: SA-404. Producer or source: Alloy steel mills and foundries.

AISI 4161

Alloy Digest ◽  
1984 ◽  
Vol 33 (2) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Alloy Steel ◽  
Temper Embrittlement ◽  
Heat Treating ◽  
Low Alloy Steel ◽  
Heavy Duty ◽  
Good Resistance ◽  
Hand Tools ◽  
High Hardenability ◽  
Steel Mills

Abstract AISI 4161 is a low-alloy steel of the chromium-molybdenum type; it contains nominally 0.61% carbon. It has relatively high hardenability and good resistance to abrasion, impact and fatigue. It is an oil-hardening grade and is recommended for moderately heavy-duty service. This steel has a relatively low tendency to develop temper embrittlement when tempered in the approximate range 850-1100 F. Among its many applications are springs, machine-tool parts, shafting, gears, bolts and heavy-duty hand tools. 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: SA-397. Producer or source: Alloy steel mills and foundries.

Sealing Treatment of Plasma Sprayed Cr3C2-NiCr/Al2O3-TiO2 Coating by Aluminum Phosphate Sealant Containing Al2O3 Nanoparticles

2021 ◽  
Author(s):  
Tuan Nguyen Van ◽  
Tuan Anh Nguyen ◽  
Ha Pham Thi ◽  
Ly Pham Thi ◽  
Phuong Nguyen ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Electrochemical Impedance ◽  
Aluminum Phosphate ◽  
Al2o3 Nanoparticles ◽  
Treatment Efficiency ◽  
Typical Structure ◽  
Sprayed Coating ◽  
Plasma Sprayed ◽  
Sealing Treatment ◽  
Sprayed Coatings

Abstract A typical structure of thermal spray coatings consisted of molten particles, semi-molten particles, oxides, pores and cracks. These factors caused the porosity of sprayed coatings, leading to a great influence on the coating properties, especially their wear-corrosion resistance. In this study, a post-spray sealing treatment of Cr3C2-NiCr/Al2O3-TiO2 plasma sprayed coatings was carried out, then their corrosion properties were evaluated, before and after the treatment. For sealing process, aluminum phosphate (APP) containing aluminum oxide (Al2O3) nanoparticles (~10 nm) was used. The permeability of APP into the sprayed coating was analyzed by scanning electron microscopy coupled with energy dispersive spectroscopy (SEM-EDS). The treatment efficiency for porosity and corrosion resistance of sprayed coatings were evaluated by electrochemical measurements, such as the potentiodynamic polarization and electrochemical impedance spectroscopy. In addition, the wear-corrosion resistance of the sealed coating was examined in 3.5 wt.% NaCl circulation solution containing 0.25 wt.% SiO2 particles. The obtained results showed that APP penetrated deeply through the sprayed coating. The incorporation of Al2O3 nanoparticles into APP sealant enhanced the treatment efficiency of porosity for sprayed coating. The effect of the post-treatment on corrosion protection of the sprayed coating has been discussed.

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