Effect of titanium and tungsten carbide on the formation of the structure and properties of composite coatings. Part 3: wear resistance of steel R6M5–(WC+TiC)/TiC coatings

2013 ◽  
Vol 28 (6) ◽  
pp. 484-487 ◽  
Author(s):  
S.F. Gnyusov ◽  
V.G. Durakov
Author(s):  
A. E. Zatoka ◽  
D. V. Drobot ◽  
S. P. Merchev ◽  
S. V. Nevezhin ◽  
A. S. Gerasimov ◽  
...  

It was investigated the influence of technological parameters of laser cladding on the thickness of the carbide composite coatings with similar composition and properties of matrix and different types of reinforcing inclusions (spherical tungsten carbides (WC) and recycled carbides). Special attention is paid to physical-mechanical and service properties of the composites such as hardness and resistance to abrasive wear. It is established that the thickness of the carbide composite coatings increases with increasing laser power and flow rate of the carrier gas, and with decreasing speed of the laser and the step of cladding. The study showed that at the addition of 50 wt.% WC matrix has smaller hardness values 540-560 HV, which allows to obtain the structure of the carbide composite coatings without cracks. At the same time, at addition of 80 wt.% WC matrix has higher hardness 670 HV, which does not provide the structure without cracks. Resistance of composites NiCrBSiC-WC to cracking, as well as their wear resistance, increases with increasing content of tungsten carbide. The wear resistance of the coatings received from powder Technicord 655-SL, with a reinforcement by recycled carbide, comparable to that for coatings from spherical tungsten carbide Tekmat WC-125. Coatings NiCrBSiCWC, obtained by laser cladding, are used to increase the service life of the equipment telemetering systems, in particular, it is possible to prevent of abrasion and provide of increasing the service life of the contact pads of the equipment for measurement while drilling.


2021 ◽  
Vol 138 (21) ◽  
pp. 50504
Author(s):  
Janice L. Lebga‐Nebane ◽  
Malavarayan Sankarasubramanian ◽  
Gregory Chojecki ◽  
Bo Ning ◽  
Philip A. Yuya ◽  
...  

1984 ◽  
Vol 106 (2) ◽  
pp. 278-281 ◽  
Author(s):  
J. S. Williamson ◽  
J. Bolton

Drill string hardfacings are composites of steel and tungsten carbide applied by welding techniques. This paper discusses the important variables involved and gives experimental results for casing wear and abrasive wear resistance.


Alloy Digest ◽  
1995 ◽  
Vol 44 (12) ◽  

Abstract COLMONOY No. 83 PTA is a nickel-base hard surfacing alloy containing tungsten carbide. The application method is plasma transferred arc and the application is designed to protect extrusion screws. This datasheet provides information on composition, physical properties, microstructure, hardness, tensile properties, and compressive strength. It also includes information on wear resistance as well as machining and powder metal forms. Filing Code: Ni-493. Producer or source: Wall Colmonoy Corporation.


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