Influence of Regimes Electrolytic Plasma Cementation on the Mechanical Properties of Steel 12Cr18Ni10Ti

2012 ◽  
Vol 531-532 ◽  
pp. 173-177 ◽  
Author(s):  
Mazhyn Skakov ◽  
Sherzod Kurbanbekov ◽  
Michail Scheffler
Keyword(s):  
Mechanical Properties ◽  
Structural Phase ◽  
Plasma Processing ◽  
Implementation Process ◽  
High Hardness ◽  
Hardened Layer ◽  
Operational Parameters ◽  
Surface Layers ◽  
Fine Grained ◽  
Phase Condition

In the present work the results of electrolytic-plasma treatment influence on the mechanical properties and structural-phase condition of steel’s 12Cr18Ni10Ti surface layers. In the work, the mechanical characteristics of steel’s surface layers are investigated, cemented in electrolytic plasma with the composition 10 % Nа2CO3 and 10 % С3Н8О3. The operational parameters for the processing are determined. The optimal content of components in saturating mixtures plasma by cementation defined. According to the study it is found that, after electrolyte plasma processing, high hardness increased in 2-2.5 times more than in the original condition. The hardened layer with thickness 30-65 µm is formed. It is shown that after the electrolyte-plasma processing of steel 12Cr18Ni10Ti, microstructure contains particles carbides and has fine-grained martensitic structure. The advantages this method are: small energy consumption high speeds annealing opportunity of local surface processing details complex configuration, operating in the conditions intensive loads, easy implementation process.

Changes of Mechanical Properties of Steel 12Cr18Ni10Тi after Electrolytic-Plasma Cementation

2012 ◽  
Vol 601 ◽  
pp. 59-63 ◽  
Author(s):  
Sherzod Kurbanbekov ◽  
Маzhyn Skakov ◽  
Michail Scheffler ◽  
Azret Naltaev
Keyword(s):  
Mechanical Properties ◽  
Mechanical Characteristics ◽  
Structural Phase ◽  
Plasma Processing ◽  
Hardened Layer ◽  
High Wear Resistance ◽  
Operational Parameters ◽  
Surface Layers ◽  
Fine Grained ◽  
Phase Condition

In the present work the results of electrolytic-plasma treatment influence on the mechanical properties and structural-phase condition of steel’s 12Cr18Ni10Ti surface layers. In the work, the mechanical characteristics of steel’s surface layers are investigated, cemented in electrolytic plasma with the composition of 10 % Nа2CO3 and 10 % С3Н8О3. The operational parameters for the processing are determined. The optimal content of components in saturating mixtures of plasma by cementation is defined. According to the study it is found that, after electrolyte plasma processing, high wear resistance and hardness increased in 2-2.5 times more than in the original condition. The hardened layer with thickness 30-65 µm is formed. It is shown that after the electrolyte-plasma processing of steel 12Cr18Ni10Ti, microstructure contains particles of carbides and has a fine-grained martensitic structure.

Changes of Structural-Phase Condition in 18CrNi3MoA-SH Steel After Elektrolyte-Plasma Processing

2012 ◽  
Vol 601 ◽  
pp. 74-78 ◽  
Author(s):  
Mazhyn Skakov ◽  
Lyaila Bayatanova ◽  
Michael Sheffler
Keyword(s):  
Wear Resistance ◽  
Plasma Treatment ◽  
Structural Phase ◽  
Plasma Processing ◽  
High Wear Resistance ◽  
Initial State ◽  
Drilling Tool ◽  
Steel Microstructure ◽  
Fine Grained ◽  
Bainite Structure

The research shows the results of electrolyte-plasma treatment influence on structure-phase state, mechanical properties and wear-resistance of drilling tool steel samples. The comparative analysis of microstructure, microhardness and wear-resistance of the samples in initial state and after electrolyte-plasma treatment is represented. It was found out that 18CrNi3MoA-Sh steel microstructure has fine-grained martensite-bainite structure after the treatment. It was determined that 18CrNi3MoA-Sh steel possesses high wear-resistance after electrolyte-plasma treatment, so that technology is characterized by low power consumption and cost price. The initial state microhardness is 2800 MPa on the average. Microhardness on the bearing lane surface after electrolyte-plasma processing is 7500 MPa on the average. Microhardness increases in 2-2.5 times more before treatment that indicates the technology efficiency.

Investigation of the Influence of Electrolytic-Plasma Processing on Structural-Phase State and Mechanical Properties of the 40CrNiAl Alloy

2014 ◽  
Vol 1044-1045 ◽  
pp. 67-70
Author(s):  
Mazhyn Skakov ◽  
Gulnara Yerbolatova ◽  
Nurgamit Kantai ◽  
Michael Scheffler
Keyword(s):  
Mechanical Properties ◽  
Solid Solution ◽  
Phase State ◽  
Structural Phase ◽  
Plasma Processing ◽  
Structural Phase State ◽  
Dispersed Particles ◽  
Electrolytic Plasma Processing

It is shown that as a result of electrolytic plasma carburization is released from the solid solution carbides dispersed particles based alloy components, i.e. hardening occurs. Found that after processing the surface of the alloy samples 40CrNiAl modified form reinforced layers whose thickness depends on the time, temperature and processing of components of the electrolyte.

Gradient Structures and Internal Stress Fields in Surface Layers of Products Made of Steel 0.35C-1Cr-1Mn-1Si after Turning

2014 ◽  
Vol 1013 ◽  
pp. 170-175 ◽  
Author(s):  
Aleksandr Smirnov ◽  
Nikolai Ababkov ◽  
Aleksandra Glinka
Keyword(s):  
Heat Treatment ◽  
Internal Stress ◽  
Structural Phase ◽  
Nondestructive Method ◽  
Stress Fields ◽  
Surface Layers ◽  
Acoustic Characteristics ◽  
Phase Condition ◽  
Internal Stress Field

The effect of different cutting (mechanical heat treatment) on the structural-phase condition and the internal stress field in the surface layers of the product is considered in the article. The regularities of acoustic characteristics depending on the parameters of the structure and stress for the development of nondestructive method for assessing the quality of the surface layer are identified

Modification of Stainless Steels Surface Layers by Nitriding and Carbonitriding

2013 ◽  
Vol 712-715 ◽  
pp. 12-16 ◽  
Author(s):  
Маzhyn Skakov ◽  
Sherzod Kurbanbekov ◽  
Michail Scheffler ◽  
Azretay Naltaev
Keyword(s):  
Stainless Steel ◽  
Stainless Steels ◽  
Plasma Nitriding ◽  
Plasma Processing ◽  
High Hardness ◽  
Carbon Steels ◽  
Low Carbon ◽  
Surface Layers ◽  
Low Carbon Steels ◽  
Martensite Structure

The structure of low-carbon steels after saturation by nitrogen and carbon in the mode of electrolytic-plasma nitriding and carbonitriding on the surface structure of austenitic stainless steel 12Cr18Ni10Ti has been studied. Optimum modes of electrolytic-plasma nitriding and carbonitriding are determined ensuring the maximum saturation of nitrogen and carbon, the microhardness of the surface. It is established, that after electrolyte-plasma processing microstructure of steel 12Cr18Ni10Ti has martensite structure. As a result of the research it is revealed that steel 12Cr18Ni10Ti after the electrolyte-plasma processing has high hardness.

APPLYING SURFACE PLASMA HARDENING FOR IMPROVING THE TRIBOLOGICAL CHARACTERISTICS OF STEEL PARTS

Tribologia ◽  
2019 ◽  
Vol 283 (1) ◽  
pp. 49-55 ◽  
Author(s):  
Bauyrzhan RAHADILOV ◽  
Laila ZHUREROVA ◽  
Zhuldyz SAGDOLDINA
Keyword(s):  
Wear Resistance ◽  
Experimental Studies ◽  
High Hardness ◽  
Hardened Layer ◽  
Heating Time ◽  
Tribological Characteristics ◽  
Surface Plasma ◽  
Initial State ◽  
Plasma Hardening ◽  
Fine Grained

This work presents the results of experimental studies on the application of surface plasma hardening to improve the tribological characteristics of steel marks of 40CrNi, 20Cr2Ni4A, and 34CrNi1Mn. According to the obtained results, it was established that, after plasma treatment, a modified layer with a thickness of 1–1.2 mm with high hardness and wear resistance is formed, consisting of a hardened layer of fine-grained martensite and, an intermediate layer of perlite and martensite. It was determined that, after treatment with a heating time of 3 min, the microhardness of steels 40CrNi and 20Cr2Ni4A doubles, and the steel 34CrNi1Mn increases 1.6 times, depending on the initial state, and the wear resistance of all steel samples increases, on average, 30 times.

A comparative study on the mechanical behaviors of surface-strengthened Nitinol 60 alloy and steel

2019 ◽  
Vol 43 (4) ◽  
pp. 569-578
Author(s):  
Qunfeng Zeng
Keyword(s):  
Mechanical Properties ◽  
Wear Mechanism ◽  
Adhesive Wear ◽  
Engineering Application ◽  
High Hardness ◽  
Hardened Layer ◽  
Untreated Sample ◽  
Treated Sample ◽  
Before And After ◽  
The Coefficient Of Friction

Nitinol 60 alloy and steel were treated using supersonic fine-particle bombardment (SFPB) to improve their mechanical properties. The formation of the strengthened layer and the mechanical properties including surface roughness, hardness, and tribological properties of the untreated and treated samples were systematically investigated using surface profiler, micro-Vickers hardness, and ball-on-disk tribometer, respectively. The influences of SFPB treatment on the mechanical properties of samples are discussed. The results show that a hardened layer is formed on samples after SFPB treatment and that the treated samples exhibit high hardness and good wear resistance. It is also found that the coefficient of friction (CoF) of Nitinol 60 alloy is lowest among all the samples before and after surface treatment. The wear mechanism of the untreated sample is adhesive wear; however, the wear mechanism of the treated sample is adhesive and abrasive wear. This study will provide clear guidelines for the engineering application of Nitinol 60 alloy.

Nitriding and Carbonitriding Influence on Stainless Steels Surface Layers Changes

2013 ◽  
Vol 379 ◽  
pp. 105-109 ◽  
Author(s):  
Маzhyn Skakov ◽  
Sherzod Kurbanbekov ◽  
Yerkezhan Tabieva ◽  
Erkin Zamanbekuly
Keyword(s):  
Stainless Steel ◽  
Stainless Steels ◽  
Plasma Nitriding ◽  
Plasma Processing ◽  
High Hardness ◽  
Carbon Steels ◽  
Low Carbon ◽  
Surface Layers ◽  
Low Carbon Steels ◽  
Martensite Structure

The structure of low-carbon steels after saturation by nitrogen and carbon in the mode of electrolytic-plasma nitriding and carbonitriding on the surface structure of austenitic stainless steel 12Cr18Ni10Ti has been studied. Optimum modes of electrolytic-plasma nitriding and carbonitriding are determined ensuring the maximum saturation of nitrogen and carbon, the microhardness of the surface. It is established, that after electrolyte-plasma processing microstructure of steel 12Cr18Ni10Ti has martensite structure. As a result of the research it is revealed that steel 12Cr18Ni10Ti after the electrolyte-plasma processing has high hardness.

Deformation and Fracture Mechanics of Superior Nanocomposites

2020 ◽  
Vol 990 ◽  
pp. 244-249
Author(s):  
Lydia Anggraini
Keyword(s):  
Mechanical Properties ◽  
Fracture Toughness ◽  
Bending Strength ◽  
High Hardness ◽  
High Energy ◽  
High Fracture Toughness ◽  
High Fracture ◽  
Fine Grained ◽  
Deformation And Fracture ◽  
Fine Microstructure

Lightweight ultra-fine grained (<1 μm size) SiC-ZrO2(3Y2O3) composites, with a combination of high hardness, high bending strength and high fracture toughness, were successfully prepared by high energy mechanical milling followed by heat treatment. The SiC-ZrO2(3Y2O3) composites exhibitied high hardness (1707 MPa), high bending strengh (as high as 1689 MPa) and high fracture toughness (up to approximately 12.6 MPa.m1/2). Such a combination of mechanical properties was attributed to the fine microstructure with a distinct feature consisting of almost continuous network of ZrO2(3Y2O3) phase around SiC grains, or we call harmonic microstructure. It has been demonstrated that a combination of these unique microstructural characteristics was very effective in supressing the initiation of cracks and governing the path of their subsequent growth during fracture, leading to excellent combination of mechanical properties.

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