The Regularities of Titanium and Tungsten Carbide Formation from Products of Electric Explosion Destruction of Conductors

IF 1.1 Q4 ELECTROCHEMISTRY

Surface Engineering and Applied Electrochemistry Pub Date : 2023-07-05 DOI:10.3103/S1068375523030043

Yu. O. Adamchuk, S. V. Chushchak, L. Z. Boguslavskii, A. V. Sinchuk

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Abstract—

A series of electric explosions were carried out on single and twisted conductors of various diameters made of titanium (Ti) and tungsten (W) in propane-butane. Analysis of the electro-physical characteristics of the explosion showed that the process of resistive heating of the conductors is characterized by two monotonically increasing sections on the voltage and current curves, separated by a flat segment (plateau), which corresponds to a relatively stable specific electrical resistance of refractory metals in a liquid state. The energy introduced into the conductor during the resistive heating stage, which can be higher or lower than the energy of sublimation of the conductor and can be regulated by changing the external parameters of the discharge circuit, is a key indicator that determines the structural-phase state of the destruction products and the chemical interaction of the conductor. Conditions were realized under which micro- and nanosized powder products of the electric explosion do not contain residual metals and consist entirely of carbide phases (TiC with an average microhardness of 29 580 MPa in the explosion of titanium conductors, and a mixture of W₂C + WC_1 – x dominated by stabilized high-temperature nonstoichiometric cubic carbide WC_1 – x with an average microhardness of 16 770 MPa in the explosion of tungsten conductors).

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导体电爆破坏产物生成碳化钛和碳化钨的规律

摘要在丙烷-丁烷中对不同直径的钛(Ti)和钨(W)导线进行了一系列电爆炸实验。对爆炸电物理特性的分析表明，导体的电阻加热过程在电压和电流曲线上表现为两个单调增加的部分，中间隔着一个平坦段(平台)，这对应于难熔金属在液态时相对稳定的比电阻。电阻加热阶段引入导体的能量可以高于或低于导体升华的能量，并且可以通过改变放电电路的外部参数来调节，是决定破坏产物结构相态和导体化学相互作用的关键指标。实现了电爆炸微纳米粉体产品不含金属残留，完全由碳化物相组成的条件(钛导体爆炸中TiC的平均显微硬度为29 580 MPa，钨导体爆炸中W2C + WC1 - x的混合物以稳定的高温非化学计量立方碳化物WC1 - x的平均显微硬度为16 770 MPa)。

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来源期刊

Surface Engineering and Applied Electrochemistry Engineering-Industrial and Manufacturing Engineering

CiteScore

1.70

自引率

22.20%

发文量

审稿时长

6 months

期刊介绍： Surface Engineering and Applied Electrochemistry is a journal that publishes original and review articles on theory and applications of electroerosion and electrochemical methods for the treatment of materials; physical and chemical methods for the preparation of macro-, micro-, and nanomaterials and their properties; electrical processes in engineering, chemistry, and methods for the processing of biological products and food; and application electromagnetic fields in biological systems.