Influence of the Composition of Saturating Mixture on the Depth of Diffusion of Chromium and the Coating Structure During Chromovanadizing

IF 0.6 4区 材料科学 Q4 METALLURGY & METALLURGICAL ENGINEERING Metal Science and Heat Treatment Pub Date : 2024-04-16 DOI:10.1007/s11041-024-01003-7
N. A. Shaburova
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Abstract

The results of metallographic and x-ray phase studies of 35Kh2N3 steel samples after two-component thermal diffusion saturation with chromium and vanadium in mixtures of different compositions are presented. It is shown that when metallic chromium is replaced by ferrochromium, the structure and the phase composition of the coating change; the amount of carbide and nitride phases decreases and the amount of the Cr – Fe – V solid solution increases. The use of serpentine in the saturating mixture (an emitter of oxygen anions, which creates a flow of charged particles directed to the saturated part) elevates the depth of diffusion of chromium into the metal from 20 to 50 μm. The hardness of the coatings due to chromizing in metallic chromium powder with ferrovanadium and in a mixture of ferrochromium with ferrovanadium amounts to 2000 HV and 1750 HV, respectively.

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饱和混合物的成分对铬化过程中铬的扩散深度和涂层结构的影响
本文介绍了对不同成分的铬和钒混合物进行双组分热扩散饱和后的 35Kh2N3 钢样品进行金相和 X 射线相研究的结果。结果表明,当金属铬被铬铁取代时,涂层的结构和相组成发生了变化;碳化物和氮化物相的数量减少,Cr - Fe - V 固溶体的数量增加。在饱和混合物中使用蛇纹石(一种氧阴离子发射器,可产生指向饱和部分的带电粒子流)可将铬在金属中的扩散深度从 20 μm 提高到 50 μm。在含钒铁的金属铬粉和含钒铁的铬铁混合物中进行铬化,涂层的硬度分别达到 2000 HV 和 1750 HV。
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来源期刊
Metal Science and Heat Treatment
Metal Science and Heat Treatment 工程技术-冶金工程
CiteScore
1.20
自引率
16.70%
发文量
102
审稿时长
4-8 weeks
期刊介绍: Metal Science and Heat Treatment presents new fundamental and practical research in physical metallurgy, heat treatment equipment, and surface engineering. Topics covered include: New structural, high temperature, tool and precision steels; Cold-resistant, corrosion-resistant and radiation-resistant steels; Steels with rapid decline of induced properties; Alloys with shape memory effect; Bulk-amorphyzable metal alloys; Microcrystalline alloys; Nano materials and foam materials for medical use.
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