粉末填充法在碳钢表面形成碳化钒层的机理

IF 0.3 4区材料科学 Q4 METALLURGY & METALLURGICAL ENGINEERING

Tetsu To Hagane-journal of The Iron and Steel Institute of Japan Pub Date : 2023-10-01 DOI:10.2355/tetsutohagane.tetsu-2023-044

Daichi Fujisaki, Shigenari Hayashi

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引用次数: 0

摘要

采用粉末堆积法研究了C含量对碳钢表面V碳化物层形成的影响。在Fe-0.7C和Fe-0.3C (wt.%)上形成由外V2C层和内V6C5层和V8C7层组成的连续双相碳化物层，但在Fe-0.1C上形成不连续的双相碳化物层。在Fe-0.3C和-0.1C时，基体内部有碳化物析出。经过长时间处理后，Fe-0.1C中的这些析出物消失。内部碳化物层向内生长，表明VCl2气体可以通过碳化物层渗透到钢基体中。

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Mechanism of Formation of Vanadium Carbide Layers on Carbon Steel by Powder Packed Method

The effect of C content on the formation of V carbide layer on carbon steels by a powder packed method was investigated. The continuous duplex carbide layer consisting of an outer V2C and inner V6C5 and V8C7 layers was formed on Fe-0.7C and Fe-0.3C (in wt.%), but it was discontinuous on Fe-0.1C. Internal carbide precipitates were observed within the matrix in Fe-0.3C and -0.1C. These precipitates in Fe-0.1C were disappeared after long treatment. The inner carbide layers were confirmed to grow inwardly, which suggests that VCl2 gas can penetrate through the carbide layers to the steel substrate.

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来源期刊

Tetsu To Hagane-journal of The Iron and Steel Institute of Japan 工程技术-冶金工程

CiteScore

0.70

自引率

33.30%

发文量

审稿时长

6-12 weeks

期刊介绍： The journal ISIJ International first appeared in 1961 under the title Tetsu-to-Hagané Overseas. The title was changed in 1966 to Transactions of The Iron and Steel Institute of Japan and again in 1989 to the current ISIJ International. The journal provides an international medium for the publication of fundamental and technological aspects of the properties, structure, characterization and modeling, processing, fabrication, and environmental issues of iron and steel, along with related engineering materials. Classification I Fundamentals of High Temperature Processes II Ironmaking III Steelmaking IV Casting and Solidification V Instrumentation, Control, and System Engineering VI Chemical and Physical Analysis VII Forming Processing and Thermomechanical Treatment VIII Welding and Joining IX Surface Treatment and Corrosion X Transformations and Microstructures XI Mechanical Properties XII Physical Properties XIII New Materials and Processes XIV Social and Environmental Engineering.