scholarly journals Corrosion Resistant Materials for the Citrus Processing Industry

1955 ◽  
Author(s):  
Wm. T. Tiffin
Keyword(s):  
Corrosion Resistance ◽  
Citric Acid ◽  
Waste Product ◽  
Pure Nickel ◽  
Low Alloy Steels ◽  
Processing Industry ◽  
Corrosion Resistant ◽  
Alloy Steels ◽  
Citric Acid Content ◽  
Citrus Waste

One of the most perplexing problems that confronts the designer of citrus processing machinery and equipment is that of corrosion resistance. Citrus waste product, pulp, and juice have a citric acid content of around 2.7% by weight which will quickly destroy paint or lacquer finishes and will rapidly corrode carbon or low alloy steels. Only the highly alloyed chromium nickel steels, monel, inconel, pure nickel, some of the bronzes, tin and copper can withstand the corrosive attack of citrus juice and pulp. Paper published with permission.

TRI-MARK TM-115

Alloy Digest ◽  
1983 ◽  
Vol 32 (8) ◽  
Keyword(s):  
Fracture Toughness ◽  
Corrosion Resistance ◽  
Arc Welding ◽  
High Strength ◽  
Heat Treating ◽  
Low Alloy Steels ◽  
Mining Equipment ◽  
Alloy Steels ◽  
Temperature Impact ◽  
Welding Electrode

Abstract TRI-MARK TM-115 is a gas-shielded flux-cored welding electrode for continuous high deposition are welding. It is designed specifically for semiautomatic and automatic arc welding of high-strength low-alloy steels and quenched-and-tempered steels. This gas-sheilded tubular wire can be used for single and multiple-pass welding. It has outstanding low-temperature impact properties. Its applications including mining equipment, large vehicles and similar items. 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 heat treating, machining, and joining. Filing Code: SA-392. Producer or source: Tri-Mark Inc..

scholarly journals Erosion and Corrosion Resistance Performance of Laser Metal Deposited High-Entropy Alloy Coatings at Hellisheidi Geothermal Site

Materials ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 3071
Author(s):  
Andri Isak Thorhallsson ◽  
Francesco Fanicchia ◽  
Emily Davison ◽  
Shiladitya Paul ◽  
Svava Davidsdottir ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Microstructural Characterization ◽  
Corrosion Damage ◽  
Process Equipment ◽  
High Entropy Alloy ◽  
Low Alloy Steels ◽  
Manufacturing Defects ◽  
High Entropy ◽  
Alloy Steels ◽  
Resistance Performance

Geothermal process equipment and accessories are usually manufactured from low-alloy steels which offer affordability but increase the susceptibility of the materials to corrosion. Applying erosion-corrosion-resistant coatings to these components could represent an economical solution to the problem. In this work, testing of two newly developed laser metal deposited high-entropy alloy (LMD-HEA) coatings—CoCrFeNiMo0.85 and Al0.5CoCrFeNi, applied to carbon and stainless steels—was carried out at the Hellisheidi geothermal power plant. Tests in three different geothermal environments were performed at the Hellisheidi site: wellhead test at 194 °C and 14 bar, erosion test at 198 °C and 15 bar, and aerated test at 90 °C and 1 bar. Post-test microstructural characterization was performed via Scanning Eletron Microscope (SEM), Back-Scattered Electrons analysis (BSE), Energy Dispersive X-ray Spectroscopy (EDS), optical microscopy, and optical profilometry while erosion assessment was carried out using an image and chemical analysis. Both the CoCrFeNiMo0.85 and Al0.5CoCrFeNi coatings showed manufacturing defects (cracks) and were prone to corrosion damage. Results show that damage in the CoCrFeNiMo0.85-coated carbon steel can be induced by manufacturing defects in the coating. This was further confirmed by the excellent corrosion resistance performance of the CoCrFeNiMo0.85 coating deposited onto stainless steel, where no manufacturing cracks were observed.

AK STEEL 409 Ni

Alloy Digest ◽  
2021 ◽  
Vol 70 (6) ◽  
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Physical Properties ◽  
Cost Effective ◽  
Heat Treating ◽  
Low Alloy Steels ◽  
Service Temperature ◽  
Alloy Steels ◽  
Cost Effective Alternative ◽  
Maximum Service Temperature

Abstract AK Steel 409 Ni is a 11% chromium ferritic stainless steel microalloyed with titanium and nickel. It provides excellent weldability, toughness, and fabricating characteristics superior to those of type 409 stainless steel in thicknesses over 3.05 mm (0.120 in.). This alloy is a cost effective alternative to mild steels and low-alloy steels that also provides superior corrosion and/or oxidation resistance. The recommended maximum service temperature of AK Steel 409 Ni is 730 °C (1350 °F). This datasheet provides information on composition, physical properties, elasticity, and tensile properties. It also includes information on corrosion resistance as well as heat treating and joining. Filing Code: SS-1336. Producer or source: AK Steel Corporation.

scholarly journals Effect of tempering heat treatment on the CO2 corrosion resistance of quench-hardened Cr-Mo low-alloy steels for oil and gas applications

2019 ◽  
Vol 154 ◽  
pp. 36-48 ◽  
Author(s):  
Clara. Escrivà-Cerdán ◽  
Steve W. Ooi ◽  
Gaurav R. Joshi ◽  
Roberto Morana ◽  
H.K.D.H. Bhadeshia ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Corrosion Resistance ◽  
Oil And Gas ◽  
Co2 Corrosion ◽  
Low Alloy Steels ◽  
Alloy Steels

scholarly journals Study on the Rust Layer on Atmospheric Corrosion Resistant Low Alloy Steels (Part 3)

1970 ◽  
Vol 19 (2) ◽  
pp. 79-88 ◽  
Author(s):  
Ichirô Suzuki ◽  
Noboru Masuko ◽  
Yoshihiro Hisamatsu
Keyword(s):  
Atmospheric Corrosion ◽  
Low Alloy Steels ◽  
Rust Layer ◽  
Corrosion Resistant ◽  
Alloy Steels

Corrosion of Martensitic Stainless Steel Weldments

2006 ◽  
pp. 115-124
Keyword(s):  
Corrosion Resistance ◽  
Stainless Steels ◽  
Low Alloy Steels ◽  
Martensitic Stainless Steels ◽  
Tetragonal Crystal ◽  
Tetragonal Crystal Structure ◽  
Hydrogen Induced Cracking ◽  
Stress Corrosion Resistance ◽  
Sulfide Stress ◽  
Alloy Steels

Abstract Martensitic stainless steels are essentially iron-chromium-carbon alloys that possess a body-centered tetragonal crystal structure (martensitic) in the hardened condition. Martensitic stainless steels are similar to plain carbon or low-alloy steels that are austenitized, hardened by quenching, and then tempered for increased ductility and toughness. This chapter provides a basic understanding of grade designations, properties, corrosion resistance, and general welding considerations of martensitic stainless steels. It also discusses the causes for hydrogen-induced cracking in martensitic stainless steels and describes sulfide stress corrosion resistance of type 410 weldments.

Corrosion of Weldments

2006 ◽  
Keyword(s):  
Oil And Gas ◽  
Corrosion Monitoring ◽  
Low Alloy Steels ◽  
Corrosion Resistant ◽  
Alloy Steels ◽  
Corrosion Behaviors ◽  
Nickel Base ◽  
Nonferrous Alloys ◽  
And Control ◽  
Weld Corrosion

Corrosion of Weldments provides an understanding of the causes and forms of weld corrosion and the methods used to monitor and control it. It explains how welding influences the microstructure and corrosion behaviors of carbon and low-alloy steels, stainless steels, nickel-base and other nonferrous alloys, and dissimilar metal welds. It identifies the factors that contribute to corrosion-related failures of welds and describes the underlying damage mechanisms. It presents case histories documenting corrosion problems in oil and gas, chemical processing, pulp and paper, and other industries and the challenges associated with high-temperature environments. It also covers corrosion monitoring and testing methods and provides insights on making weldments more corrosion resistant. For information on the print version, ISBN 978-0-87170-841-0, follow this link.

Boro-Nitriding of 25CrMo4, 42CrMo4 and 55CrMoV4 Low Alloy Steels

2020 ◽  
Vol 12 (3) ◽  
pp. 371-375
Author(s):  
B. Benhabib ◽  
O. Allaoui ◽  
M. E. Djeghlal
Keyword(s):  
Corrosion Resistance ◽  
Beneficial Effect ◽  
Solid Medium ◽  
Low Alloy Steels ◽  
Corrosion Tests ◽  
Alloy Steels ◽  
Nitride Layers

In this work, we study the effect of boriding and nitriding treatments on microhardness and corrosion resistance of three different low alloy steels (25CrMo4, 42CrMo4 and 55CrMoV4). The thermochemical treatments were carried out in solid medium by the powder technique at 900 °C for 4 hours in boriding treatment, and at 550 °C for 12 hours in nitriding treatment. The obtained results show that the boride and nitride layers formed on the surface of treated steels contained FeB, Fe2B, CrN, Fe3N and Fe4N phases. Microhardness of boride and nitride layers are between 850 HV0.05 and 2100 HV0.05. Corrosion tests have shown the beneficial effect of boriding and nitriding treatments on treated steels.

Sign in / Sign up

Export Citation Format

Share Document