Levărdă Edmund, Cîrlan Dumitru-Codrin, Chicet Daniela Lucia, Petcu Marius, Toma Stefan Lucian
Department of Materials Engineering and Industrial Safety, Faculty of Materials Science and Engineering, Gheorghe Asachi Technical University of Iasi, 700050 Iasi, Romania.
Materials Science Department, Materials Science and Engineering Faculty, Gheorghe Asachi Technical University of Iasi, 700050 Iasi, Romania.
Materials (Basel). 2025 May 13;18(10):2259. doi: 10.3390/ma18102259.
Due to the low hardness of carbon steels, their low resistance to wear, and erosion by cavitation and corrosion, it is necessary to protect the surfaces of parts with layers capable of ensuring the properties listed above. In this paper, we started from the premise that adding tungsten carbide (WC) powders during the electric arc spraying process of stainless steel would lead to obtaining a composite material coating resistant to wear and erosion at high temperatures, with relatively lower manufacturing costs. Thus, our research compared the following two types of coatings: a highly alloyed layer with WC, Cr, and TiC (obtained from 97MXC core wires) and a 60T/WC coating (obtained from a 60T solid-section wire to which WC was added), in terms of microstructure, mechanical properties, dry friction wear, and behaviour at erosion by cavitation (EC). The results of our research demonstrated that although the 60T/WC coating had lower erosion by cavitation behaviour than the 97MXC one, it can still be considered as a relatively good and inexpensive solution for protecting C15 steel parts.
由于碳钢硬度低、耐磨性差，且易受气蚀和腐蚀侵蚀，因此有必要用能够确保上述性能的涂层来保护零件表面。在本文中，我们基于这样一个前提展开研究：在不锈钢电弧喷涂过程中添加碳化钨（WC）粉末，将能够获得一种耐高温磨损和侵蚀的复合材料涂层，且制造成本相对较低。因此，我们的研究比较了以下两种涂层：一种是含有WC、Cr和TiC的高合金层（由97MXC芯线获得），另一种是60T/WC涂层（由添加了WC的60T实心截面线材获得），比较内容包括微观结构、力学性能、干摩擦磨损以及气蚀侵蚀（EC）行为。我们的研究结果表明，尽管60T/WC涂层的气蚀侵蚀行为比97MXC涂层要低，但它仍可被视为一种保护C15钢零件的相对良好且廉价的解决方案。
