scholarly journals NITROGEN INFLUENCE ON THE CORROSION RESISTANCE OF THIN Ti-O-N FILMS DEPOSITED BY REACTIVE MAGNETRON SPUTTERING

2021 ◽  
pp. 3-6
Author(s):  
Boytsova Elena ◽  
◽  
Voroshilov Fedor ◽  
Leonova Liliya ◽  
◽  
...  

The electrochemical and gravimetric methods were used to study the effect of nitrogen using in the reaction mixture during magnetron deposition on the Ti-O-N films corrosion-electrochemical behavior. Polarization studies of the films electrochemical dissolution in aque-ous solution of 3 % NaCl in a potentiostatic mode are presented. It was found that upon dis-solution of the films, passivation, activation, and passivation of the coating surface are ob-served, associated with the formation of oxide films and titanium chlorides on the sample sur-face. It has been proved that thin films obtained with a high nitrogen content exhibit higher corrosion resistance. In this work, the following corrosion parameters were calculated: mass, depth and current indicators.

Alloy Digest ◽  
2018 ◽  
Vol 67 (2) ◽  

Abstract Forta H500 is an austenitic stainless steel in which manganese replaces some of the nickel. Its high-nitrogen content adds strength. Grades Forta H800 and H1000 can be derived from the same composition by changing the degree of work hardening. This datasheet provides information on physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming and joining. Filing Code: SS-1278. Producer or source: Outokumpu Stainless AB, Avesta Research Centre.


Alloy Digest ◽  
2017 ◽  
Vol 66 (6) ◽  

Abstract P550 is a fully austenitic Mn-Cr-N steel with 1.4% nickel minimum. The alloy is a special nonmagnetic steel with a high nitrogen content. This datasheet provides information on composition, physical properties, hardness, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance. Filing Code: SS-1266. Producer or source: Schoeller-Bleckmann.


Alloy Digest ◽  
2018 ◽  
Vol 67 (1) ◽  

Abstract Forta H400 is an austenitic stainless steel in which manganese replaces some of the nickel. Its high-nitrogen content adds strength. This variant has low carbon content. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming. Filing Code: SS-1276. Producer or source: Outokumpu Stainless AB, Avesta Research Centre.


Alloy Digest ◽  
1984 ◽  
Vol 33 (5) ◽  

Abstract AVESTA 254 SMO was developed for use in halide-containing environments. Its high molybdenum content, along with the copper addition, provides a material with excellent resistance to pitting and crevice corrosion as well as good general corrosion resistance, especially in halide-containing acids. In addition, its high nitrogen content results in superior strength when compared with other austenitic stainless steels. Typical applications for Avesta 254 SMO involve seawater contact, scrubbers and high-halide level tanks and piping. 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: SS-445. Producer or source: Aluminum alloy mills.


EDIS ◽  
2013 ◽  
Vol 2013 (11) ◽  
Author(s):  
Michael A. Davis ◽  
Doug R. Sloan ◽  
Gerald Kidder ◽  
R. D. Jacobs

Animal manures have been used as natural crop fertilizers for centuries. Because of poultry manure’s high nitrogen content, it has long been recognized as one of the most desirable manures. Besides fertilizing crops, manures also supply other essential plant nutrients and serve as a soil amendment by adding organic matter, which helps improve the soil’s moisture and nutrient retention. Organic matter persistence will vary with temperature, drainage, rainfall, and other environmental factors. This 2-page fact sheet was written by Michael A. Davis, D.R. Sloan, Gerald Kidder, and R.D. Jacobs, and published by the UF Department of Animal Science, November 2013. http://edis.ifas.ufl.edu/aa205


Alloy Digest ◽  
2000 ◽  
Vol 49 (5) ◽  

Abstract Nirosta 4429 is a low-carbon, high-nitrogen version of type 316 stainless steel. The low carbon imparts intergranular corrosion resistance while the nitrogen imparts both higher strength and some increased pitting corrosion resistance. It is recommended for use as welded parts that need not or cannot be annealed after welding. This datasheet provides information on composition, physical properties, elasticity, and tensile properties. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, and joining. Filing Code: SS-787. Producer or source: ThyssenKrupp Nirosta.


Alloy Digest ◽  
2004 ◽  
Vol 53 (8) ◽  

Abstract AL 4565 alloy has a high level of austenitizers, which provides the microstructure with a high resistance to sigma formation during welding. The high nitrogen also gives the alloy superior strength among the austenitics. Applications include flue gas desulfurization and handling seawater. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on high temperature performance and corrosion resistance as well as heat treating and joining. Filing Code: SS-906. Producer or source: Allegheny Ludlum Corporation.


2019 ◽  
Vol 33 (2) ◽  
pp. 1467-1472 ◽  
Author(s):  
Minh-Tuan Nguyen ◽  
Gerhard D. Pirngruber ◽  
Florian Albrieux ◽  
Fabien Chainet ◽  
Melaz Tayakout-Fayolle ◽  
...  

2005 ◽  
Vol 128 (2) ◽  
pp. 99-103 ◽  
Author(s):  
Alberto Bahillo ◽  
Lourdes Armesto ◽  
Andrés Cabanillas ◽  
Juan Otero

Transformation of hide (animal skins) into leather is a complicated process during which significant amounts of wastes are generated. Fluidized bed combustion has been extended to burn different wastes that have problems with their disposal showing its technical feasibility. Considering the characteristics of the leather waste, especially the heating value (12.5-21MJ∕kg), it is a fairly good fuel. Moreover, leather waste has a high volatile matter, 65%, similar to other biomasses and unusual high nitrogen content, 14%. The aim of this work was to study leather wastes combustion in fluidized bed presenting experimental results regarding NOx and N2O emissions. A series of experiments were carried out in a fluidized bed pilot plant to understand the importance of operating parameters such as furnace temperature, oxygen content in gases, staged combustion and residence time on the NOx and N2O emission level. Despite having high nitrogen content, low conversion of N-fuel to NOx and N2O was measured during the combustion of leather waste in BFB. Bed temperature and oxygen content were found as the most important single parameters on N2O emission and only oxygen content has a significant influence on NOx emission. Leather waste exhibits a great NOx∕O2 trend; NOx emission decreases as the oxygen concentration decreases while the effect of combustion temperature on NOx is insignificant. Staged combustion does not give a reduction in NOx.


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