电解等离子体胶结法工艺参数对结构钢20X相组织和力学性能影响的研究

IF 1.4 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY AIMS Materials Science Pub Date : 2023-01-01 DOI:10.3934/matersci.2023050
Bauyrzhan Rakhadilov, Lyaila Bayatanova, Sherzod Kurbanbekov, Ravil Sulyubayev, Nurdaulet Shektibayev, Nurbol Berdimuratov
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摘要

& lt; abstract>本文介绍了采用不同溶液对20X钢表面改性层相组成和力学性能影响的研究结果。已经确定,在含有(a) 10%煅烧纯碱(Na<sub>2</sub>CO<sub>3</sub> N<sub>2</sub> 0)、10%甘油(C<sub>3</sub>H<sub>8</sub>O<sub>3</sub>)和70%蒸馏水的溶液中淬火后,电解质-等离子体凝固,(b) 10%煅烧纯碱(Na<sub>2</sub>CO<sub>3</sub>)20%的尿素(CH<sub>4</sub>N<sub>2</sub> 0)和70%的蒸馏水在20X钢表面形成改性结构。该结构主要由α-Fe相组成,外加增强相Fe<sub>3</sub>C和Fe<sub>3</sub>C<sub>7</sub>碳化物和马氏体αx-Fe相。电解液的等离子体被用来加热样品。然后将这些样品部分浸入电解液中,在950℃下保温5分钟,然后淬火。结果表明,20X钢具有较高的硬度。经电解液等离子体胶结处理后,改性钢试样表面的摩擦系数显著降低。此外,与初始状态相比,磨损量减少了6.5倍以上。电解-等离子体胶结后的平均显微硬度为660 HV,比初始材料提高了近4倍。& lt; / abstract>
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Investigation on the effect of technological parameters of electrolyte-plasma cementation method on phase structure and mechanical properties of structural steel 20X

This article presents the results of a study on the effect of electrolyte-plasma cementation on the phase composition of the surface-modified layer and the mechanical properties of 20X steel using different solutions. It has been determined that electrolyte-plasma cementation followed by quenching in solutions containing (a) 10% calcined soda (Na2CO3), 10% urea (CH4N2O), 10% glycerin (C3H8O3) and 70% distilled water and (b) 10% calcined soda (Na2CO3), 20% urea (CH4N2O) and 70% distilled water, results in the formation of a modified structure on the surface of 20X steel. This structure mainly consists of the α-Fe phase, along with separate particles of reinforcing phases, Fe3C and Fe3C7 carbides and martensitic αx-Fe phase. The plasma of the electrolyte was used to heat the samples. Then these samples were partially immersed in the electrolyte and held at a temperature of 950 ℃ for 5 min, followed by quenching. As a result of this process, it was found that 20X steel exhibits higher hardness. After the electrolyte plasma cementation, it was observed that the friction coefficient of the modified surface of the steel samples significantly decreased. Additionally, the wear volume was reduced by more than 6.5 times compared to the initial state. The average microhardness after the electrolyte-plasma cementation is 660 HV, which is nearly four times higher than that of the initial material.

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来源期刊
AIMS Materials Science
AIMS Materials Science MATERIALS SCIENCE, MULTIDISCIPLINARY-
CiteScore
3.60
自引率
0.00%
发文量
33
审稿时长
4 weeks
期刊介绍: AIMS Materials Science welcomes, but not limited to, the papers from the following topics: · Biological materials · Ceramics · Composite materials · Magnetic materials · Medical implant materials · New properties of materials · Nanoscience and nanotechnology · Polymers · Thin films.
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