A. A. Burkov, M. A. Kulik, V. K. Khe, V. O. Krutikova
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引用次数: 0
摘要
通过电火花沉积法在钛合金上制备涂层，阳极由钛和铝颗粒组成，并添加了二硼化铬粉末。随着 CrB2 浓度从 2 体积%增加到 10 体积%，阴极的增重从 4.10 毫克/平方厘米单调地增加到 9.56 毫克/平方厘米。根据极化测试和电化学阻抗光谱数据，Ti - Al - Cr - B 涂层降低了 VT3-1 合金的腐蚀速率。CrB2 浓度为 2 vol.% 时，涂层的抗氧化性最高。钛-铝-铬-B 涂层的沉积使 VT3-1 合金的表面硬度提高了 2.7 - 4 倍。沉积的 Ti - Al - Cr - B 涂层可将 VT3-1 钛合金表面的耐磨性提高 6 倍。
Electrospark Deposition of Ti – Al – Cr – B Coatings on Titanium Alloy VT3-1
Coatings on a titanium alloy are prepared by electrospark deposition with a non-localized anode consisting of titanium and aluminum granules with addition of chromium diboride powder. With increase of the CrB2 concentration from 2 to 10 vol.%, the gain in the weight of the cathode increases monotonically from 4.10 to 9.56 mg/cm2. According to the data of polarization tests and electrochemical impedance spectroscopy, the Ti – Al – Cr – B coatings reduce the corrosion rate of the VT3-1 alloy. The highest oxidation resistance of the coatings is observed for a CrB2 concentration of 2 vol.%. Deposition of Ti – Al – Cr – B coatings makes it possible to increase the surface hardness of the VT3-1 alloy by a factor of 2.7 – 4. The deposited Ti – Al – Cr – B coatings increase the wear resistance of the surface of titanium alloy VT3-1 by up to a factor of 6.
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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