稀土复合精矿气热涂层结构中的金属间化物

Proceedings of the International Symposium "Engineering and Earth Sciences: Applied and Fundamental Research" dedicated to the 85th anniversary of H.I. Ibragimov (ISEES 2019) Pub Date : 2019-08-01 DOI:10.2991/ISEES-19.2019.44

A. Kychkin, G. G. Vinokurov, N. F. Struchkov

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摘要

本文介绍了从萨哈共和国(雅库特)托托尔斯基(Tomtorskiy)稀土矿床矿石中提取、浸出稀土元素复合精矿，添加改性剂制备药芯焊丝电金属镀层的研究结果。对涂层组织和性能的金相研究表明，涂层存在非均相组织，显微硬度值增加。物相分析表明，稀土改性添加剂对涂层结构形貌的影响导致涂层结构中存在Al-Ni金属间化合物。结果表明，稀土元素的微合金化导致了组织和相组成的本质改善，并提高了新材料的物理力学性能

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Intermetallides in the Structure of Gas-Thermal Coating With Additives of Complex Concentrate of Rare-Earth Element

The article presents the results of researches of electrometallic coatings made of flux-cored wires with modifying additives of complex concentrate of rare-earth elements, obtained by extraction and leaching from ores of Tomtorskiy rare-metal deposit of the Republic of Sakha (Yakutia). Metallographic studies of the structure and properties of coatings revealed the presence of heterogeneous structures with increased values of microhardness. The conducted phase analysis showed the presence of intermetallic compounds Al-Ni in the structure of coatings caused by the influence of rare-earth modifying additives on the morphology of the structure. As a result of the conducted works it is shown that microalloying by rare-earth elements leads to essential improvement of structural and phase composition and increase of physical and mechanical properties at creation of new

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Proceedings of the International Symposium "Engineering and Earth Sciences: Applied and Fundamental Research" dedicated to the 85th anniversary of H.I. Ibragimov (ISEES 2019)

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