Formation of Structure and Properties of Composite Coatings TiB$_{2}$—TiC—Steel Obtained by Overlapping of Electric-Arc Surfacing and Self-Propagating High-Temperature Synthesis
D. L. Lutsak$^{1}$, P. M. Prysyazhnyuk$^{1}$, M. O. Karpash$^{1}$, V. M. Pylypiv$^{2}$, V. O. Kotsyubynsky$^{1}$
$^{1}$Ivano-Frankivsk National Technical University of Oil and Gas, 15 Karpatska Str., 76019 Ivano-Frankivsk, Ukraine
$^{2}$Vasyl Stefanyk Precarpathian National University, 57 Shevchenko Str., 76018 Ivano-Frankivsk, Ukraine
Received: 06.06.2016. Download: PDF
The features of structure formation, phase constitution, and wear resistance of composite coatings obtained by combining of arc surfacing with self-propagating high-temperature synthesis (SHS) with using powder electrode containing a mixture of Ti and B$_{4}$C are investigated. The coatings consist of a steel matrix, eutectic Fe + TiC, and uniform distributed reinforcing particles of TiB$_{2}$ and TiC, which vary significantly in size and form. High hardness (of 84—85 HRA) and high wear resistance of coatings in sliding friction over monolithic abrasive are caused by high content (of $\cong$ 50% vol.) of strengthening phases and features of its morphology.
Key words: self-propagating high-temperature synthesis, surfacing, powder electrode, TiB$_{2}$—TiC-coatings, composites, abrasive wear resistance.
URL: http://mfint.imp.kiev.ua/en/abstract/v38/i09/1265.html
DOI: https://doi.org/10.15407/mfint.38.09.1265
PACS: 62.20.Qp, 68.55.-a, 81.05.Mh, 81.05.Ni, 81.20.Vj, 81.40.Pq, 81.65.Lp, 81.70.Jb
Citation: D. L. Lutsak, P. M. Prysyazhnyuk, M. O. Karpash, V. M. Pylypiv, and V. O. Kotsyubynsky, Formation of Structure and Properties of Composite Coatings TiB$_{2}$—TiC—Steel Obtained by Overlapping of Electric-Arc Surfacing and Self-Propagating High-Temperature Synthesis, Metallofiz. Noveishie Tekhnol., 38, No. 9: 1265—1278 (2016) (in Russian)