电解等离子体改性后低碳钢表层的组织相态

IF 0.2 Q4 PHYSICS, MULTIDISCIPLINARY
K. Kombaev, D.S. Elamanov, A. Kassenova, D.S. Kamzin, G.M. Toktarbaeva
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引用次数: 0

摘要

提出了一种采用电等离子体改性低碳合金钢对截止阀楔柱结合件进行强化的替代技术。在实验装置上对20X钢试样进行了加工,实验确定了最佳加工方式。对处理表面的模拟可以假设,在电解等离子体加热零件的过程中,随着淬火,金属表面层发生了化学改性。与同类钢的传统硬化方法相比,所提出的加工过程中实时叠加的电压-温度特性清楚地表明,硬化时间显著缩短。此外,能源消耗,相应地,零件和产品作为一个整体的成本大大降低。电解等离子体改性促进了粗晶珠光体-铁素体组织向淬火马氏体的转变。相对于初始状态硬度的增加表明电解等离子体处理后物理和机械性能的增加。电等离子体处理方法的优点是在高淬火速率下能耗低,可以进行局部表面处理;创建用于替代电解等离子体硬化的半工业装置有先决条件。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Structural-phase state of the surface layer of low-carbon steel after electrolytic-plasma modification
An alternative technology of strengthening by electrolytic­plasma modification of low­carbon alloy steel for the wedge columns binding for stop valves has been developed. The processing of steel 20X samples was carried out on an experimental installation, the optimal processing modes were determined experimentally. Simulation of the treated surface makes it possible to assume that during the electrolytic­plasma heating of parts, along with quenching, chemical modification of the metal surface layers oc­curs. The volt­temperature characteristic with the superposition of real time on the proposed processing clearly shows a significant reduction in the time for hardening, relative to traditional hardening methods of similar steel. Also, energy consumption and, accordingly, the cost of the part and the product as a whole are significantly reduced. Electrolyte­plasma modification promotes the transformation of coarse­grained pearlite­ferrite microstructure into quenched martensite. An increase in hardness relative to the initial state indicates an increase in physical and mechanical properties after electrolyte­plasma treat­ment. The advantage of the method of electrolytic­plasma treatment consists in low energy consumption at high quenching rates, the possibility of local surface treatment; there are prerequisites for creating a semi­industrial installation for an alternative electrolyte­plasma hardening.
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