scholarly journals Increasing the wear and corrosion resistance of steel parts by methods of complex boronikeling and borovolframing

2021 ◽  
pp. 50-54
Author(s):  
Б.Д. Лыгденов ◽  
М.А. Гурьев ◽  
С.Г. Иванов ◽  
Ц. Чжэн ◽  
А.М. Гурьев
Keyword(s):  
Corrosion Resistance ◽  
Surface Layer ◽  
Thermal Treatment ◽  
Boron Carbide ◽  
Structure And Properties ◽  
Multiphase Structure ◽  
Wear And Corrosion ◽  
Pure Metals ◽  
Wear And Corrosion Resistance ◽  
And Tungsten

The paper presents ways to increase the wear and corrosion resistance of steel parts by chemical and thermal treatment methods. Comprehensive studies of the structure and properties of St3 steel samples were carried out after simultaneous complex saturation with boron and nickel, boron and tungsten from saturating coatings based on boron carbide. Both compounds of these elements (oxides, carbides, borides) and pure metals were used as suppliers of nickel and tungsten. Studies have shown that multicomponent saturation processes make it possible to form a multiphase structure of a surface layer with a complex of useful properties. Moreover, by chemical-thermal treatment it is possible to obtain such a combination of properties of the hardened product, which cannot be obtained by other methods.

Mechanical Behavior on Cr Base Steels Surface Treatment

2015 ◽  
Vol 365 ◽  
pp. 148-153 ◽  
Author(s):  
M.A. Doñu Ruiz ◽  
N. López-Perrusquia ◽  
G. Urriolagoitia-Sosa ◽  
Luis Héctor Hernández-Gómez ◽  
D. Sánchez Huerta
Keyword(s):  
Corrosion Resistance ◽  
Boron Carbide ◽  
Surface Treatment ◽  
Outer Layer ◽  
Industrial Processes ◽  
Sample Treatment ◽  
Extrusion Dies ◽  
Wear And Corrosion ◽  
Boride Coatings ◽  
Wear And Corrosion Resistance

It is known that the diffusion of boron atoms on the surface of metals and alloys can increase the hardness, wear and corrosion resistance of engineering components. Boriding is an alternative method of sample treatment when the manual work required in powder boriding needs to be decreased. In addition, its advantage lies in high volumes of work and in selective treatments. Boron carbide consists of B4C (approximately 76 wt% boron). Using gases or powders as boronizing process gives rise to boride coatings constituted by an inner layer of Fe2B (hardness 15GPa) and an outer layer of FeB (hardness 25 GPa) [1,2]. Many industrial processes require the use of highly wear-resistant materials, tools steel, hot work being these basic Cr steels in applications such as extrusion dies for light alloys, matrices for pressing, forging dies and for molding plastic.

The Role of the Nitrotec Process in Vehicle Weight Reduction

1992 ◽  
Vol 206 (4) ◽  
pp. 257-265
Author(s):  
C Dawes
Keyword(s):  
Corrosion Resistance ◽  
Surface Layer ◽  
Diffusion Zone ◽  
Iron Nitride ◽  
Nitrogen Diffusion ◽  
Aesthetic Appearance ◽  
Wear And Corrosion ◽  
Wide Range ◽  
Wear And Corrosion Resistance

Nitrotec is characterized as a low-distortion treatment for ferrous materials where surface enrichment, predominantly by nitrogen, forms a hard surface layer of epsilon iron nitride, beneath which there is a nitrogen diffusion zone. The surface layer imparts wear and corrosion resistance and the diffusion zone increases the yield and fatigue strength, particularly in thin section sizes. Process developments have significantly enhanced the corrosion resistance and aesthetic appearance of treated components to make Nitrotec competitive with electroplated finishes. Major commercialization took place during the 1980s with a wide range of successful applications from windscreen wiper systems to bumper armatures, using combinations of the unique properties obtainable from the process to provide cost and weight savings.

scholarly journals Increasing wear and corrosion resistance of steel products by combined laser thermomechanical treatment

2021 ◽  
Vol 6 (1 (114)) ◽  
pp. 72-80
Author(s):  
Oleksandr Danyleiko ◽  
Vitaliy Dzhemelinskyi ◽  
Dmytro Lesyk
Keyword(s):  
Heat Treatment ◽  
Corrosion Resistance ◽  
Surface Layer ◽  
Thermomechanical Treatment ◽  
Shot Peening ◽  
Laser Heat Treatment ◽  
Dynamic Surface ◽  
Laser Heat ◽  
Wear And Corrosion ◽  
Wear And Corrosion Resistance

A technique is presented for hardening metal products, in particular, the main tools (hammers) and cases of core drilling bits made of steel 30HGSA, using thermomechanical surface treatment according to a separate scheme. The method of combined laser thermomechanical hardening used in the study consists in the use of shot peening followed by laser heat treatment. Its use makes it possible to increase the operational properties of steel products, in particular, their wear and corrosion resistance. Based on the results of theoretical and experimental studies, the paper substantiates the features of dynamic surface plastic deformation for the analysis of impact during shot peening. The advantages of using laser hardening without surface melting are presented. Experimental research methods are proposed for determining the structural-phase composition, structure of the surface layer, hardness and microhardness of the hardened zones of steel 30HGSA. The range of rational modes of impact shot peening and thermal laser treatment has been determined. A device for testing samples for wear resistance has been developed. Methods of testing for wear and corrosion resistance of the surface of samples are proposed for assessing the tribological properties and contact interaction of materials under quasi-static and dynamic loading conditions. It is concluded that rational technological modes of hardening tools made of steel 30HGSA using combined laser thermomechanical treatment allow increasing the depth of the hardened layer by ~1.5 times compared to laser heat treatment. In addition, they provide the microhardness of the surface layer of ~5400 MPa, which is ~2.5 times higher than the microhardness of the base material

TANTUNG G

Alloy Digest ◽  
1961 ◽  
Vol 10 (7) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Physical Properties ◽  
Tensile Properties ◽  
Cutting Tools ◽  
Heat Treating ◽  
Nonferrous Alloy ◽  
Wear And Corrosion ◽  
Wear And Corrosion Resistance

Abstract TANTUNG G is a cast nonferrous alloy containing tantalum or columbium carbide and having wear and corrosion resistance. It is used primarily for cutting tools. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on forming, heat treating, machining, and joining. Filing Code: Co-28. Producer or source: Vascoloy, Ramet Division.

ALLEGHENY LUDLUM TYPE 420

Alloy Digest ◽  
2000 ◽  
Vol 49 (8) ◽  
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Physical Properties ◽  
Tensile Properties ◽  
Heat Treating ◽  
Wear And Corrosion ◽  
Wear And Corrosion Resistance ◽  
Chromium Stainless Steel

Abstract Allegheny Ludlum Type 420 is a hardenable, straight-chromium stainless steel with wear and corrosion resistance. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, and machining. Filing Code: SS-801. Producer or source: Allegheny Ludlum Corporation.

NIROSTA 4031

Alloy Digest ◽  
2005 ◽  
Vol 54 (4) ◽  
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Physical Properties ◽  
Tensile Properties ◽  
Heat Treating ◽  
Wear And Corrosion ◽  
Wear And Corrosion Resistance

Abstract Nirosta 4031 (Type 420) is a martensitic grade of stainless steel that is heat treatable and has wear and corrosion resistance. It is predominately used in the quenched-and-tempered condition. Typical applications are blades and shears for all types of cutting. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as heat treating, machining, and joining. Filing Code: SS-925. Producer or source: ThyssenKrupp Nirosta GmbH.

scholarly journals Preparation and Properties of Mo Coating on H13 Steel by Electro Spark Deposition Process

Materials ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3700
Author(s):  
Wenquan Wang ◽  
Ming Du ◽  
Xinge Zhang ◽  
Chengqun Luan ◽  
Yingtao Tian
Keyword(s):  
Corrosion Resistance ◽  
Service Life ◽  
Deposition Time ◽  
Deposition Process ◽  
H13 Steel ◽  
Carbide Phases ◽  
Metallurgical Bonding ◽  
Wear And Corrosion ◽  
Deposition Power ◽  
Wear And Corrosion Resistance

H13 steel is often damaged by wear, erosion, and thermal fatigue. It is one of the essential methods to improve the service life of H13 steel by preparing a coating on it. Due to the advantages of high melting point, good wear, and corrosion resistance of Mo, Mo coating was fabricated on H13 steel by electro spark deposition (ESD) process in this study. The influences of the depositing parameters (deposition power, discharge frequency, and specific deposition time) on the roughness of the coating, thickness, and properties were investigated in detail. The optimized depositing parameters were obtained by comparing roughness, thickness, and crack performance of the coating. The results show that the cross-section of the coating mainly consisted of strengthening zone and transition zone. Metallurgical bonding was formed between the coating and substrate. The Mo coating mainly consisted of Fe9.7Mo0.3, Fe-Cr, FeMo, and Fe2Mo cemented carbide phases, and an amorphous phase. The Mo coating had better microhardness, wear, and corrosion resistance than substrate, which could significantly improve the service life of the H13 steel.

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