MATHEMATICAL MODELING OF SELF-PROPAGATING HIGH-TEMPERATURE SYNTHESIS IN FORMATION OF A WEAR-RESISTANT COATING BY PULSE PLASMA PROCESSING OF A COMPOSITE PLASTER INVOLVING SHS REAGENTS

2016 ◽  
Vol 20 (1) ◽  
pp. 59-83
Author(s):  
G. F. Gromyko ◽  
N. P. Matsuka ◽  
A. Ph. Ilyuschenko ◽  
A. I. Shevtsov ◽  
Valiantsin M. Astashynski ◽  
...  
Keyword(s):  
Mathematical Modeling ◽  
High Temperature ◽  
Plasma Processing ◽  
Wear Resistant Coating ◽  
Pulse Plasma ◽  
Temperature Synthesis ◽  
Wear Resistant ◽  
Resistant Coating ◽  
High Temperature Synthesis

Wear-Resistant Coatings Prepared by Combination of SHS and Lost Foam Casting

2013 ◽  
Vol 749 ◽  
pp. 595-599
Author(s):  
Tao Shi ◽  
Zhi Meng Guo ◽  
Lin Gao
Keyword(s):  
Sustainable Development ◽  
Good Combination ◽  
Wear Resistant Coating ◽  
Lost Foam Casting ◽  
Temperature Synthesis ◽  
Wear Resistant ◽  
Wear Resistant Coatings ◽  
Resistant Coating ◽  
High Temperature Synthesis ◽  
Lost Foam

With a brief introduction of self-propagating high-temperature synthesis (SHS) and lost foam casting (LFC), there goes an issue about the simultaneous produce of casting and wear-resistant coating by the combination of such two techniques, which has a positive significance for energy conservation and sustainable development. Through the statement of some common hard phases generated by SHS such as TiC, WC and TiB2, it indicated that the hard phases had a good combination with iron, and thus demonstrated the feasibility of the simultaneous produce of casting and wear-resistant coating. In the end, the development and the trend of the future about this issue has been drawn.

scholarly journals Composite Metal-Matrix Alloys Based on Ni-Al for Obtaining Wear-Resistant Coatings by Electric Spark Deposition

2021 ◽  
Vol 346 ◽  
pp. 02004
Author(s):  
S.N. Khimukhin ◽  
S.V. Nikolenko ◽  
L.A. Konevtsov ◽  
E.D. Kim
Keyword(s):  
Wear Resistance ◽  
High Temperature ◽  
Liquid Phase ◽  
Metal Matrix ◽  
Temperature Synthesis ◽  
Complex Composition ◽  
Wear Resistant ◽  
Research Results ◽  
Wear Resistant Coatings ◽  
High Temperature Synthesis

The paper presents the research results on produsing by the method of liquid-phase self-propagating high-temperature synthesis (SHS) the composite metal-matrix alloys intended for the obtaining of wear-resistant coatings by electric spark deposition (ESD). Oxides NiO, Cr2O3 and mineral concentrate ZrO2 were used as a melting charge. Alloys based on the Ni-Al system with aluminides of complex composition containing Cr and Zr were obtained by means of the alumothermic SHS reaction. Wear-resistant coatings were formed on steel 45 by the ESD method by means of the newly obtained alloys,. The maximum wear resistance of the coatings was obtained using the alloys containing Cr (wt% 18) and Zr (wt% 1.9).

Research on the tribological properties of a textured lubricating wear-resistant coating modified by nano-SiC at high temperature

2015 ◽  
Vol 67 (1) ◽  
pp. 59-65 ◽  
Author(s):  
Yuncai Zhao ◽  
Fei Yang ◽  
Yongming Guo
Keyword(s):  
High Temperature ◽  
Tribological Properties ◽  
Matrix Material ◽  
Surface Texturing ◽  
Wear Resistant Coating ◽  
Nano Particles ◽  
Wear Loss ◽  
Wear Resistant ◽  
Content Type ◽  
Resistant Coating

Purpose – The purpose of this paper is to investigate the tribological properties of a textured lubricating wear-resistant coating modified by nano-SiC at a high temperature. Its aim is to explore the influence of a new composite method on the organisation and structure of sprayed coatings as well as the evolution rules governing their high-temperature tribological properties. Design/methodology/approach – A KF301/WS2 lubricating, wear-resisting, coating was prepared on matrix material GCr15 by applying supersonic plasma spraying technology. On the basis of this sample, using nano-SiC particles as a filler, the KF301/WS2 nano-modified coating with its round, pit-type texture was prepared by laser re-melting technology and a surface texturing technique. Two kinds of coating micro-organisations and structures were examined by scanning electron microscopy, and the tribological properties of both the modified and conventional coatings were studied at a high temperature. Findings – Results showed that nano-particles could effectively improve the coating micro-structure, and make the structure denser and more uniform, thus significantly increasing the wear resistance of the coating. When the friction and wear processes were stable, the friction coefficient decreased by 13 per cent, while the wear loss decreased by 45.9 per cent. Originality/value – This research concentrating on the study of the process and performance of coatings doped with nano-particles by laser re-melting incorporating simultaneous surface texturing, and studies of their high-temperature tribological properties. That is because applying nano-particle modification technology to the development of wear-resistant coatings, and by applying the nano-particles to such coatings by thermal spraying technology, they can achieve a modification of the coating which makes the structure denser and more uniform.

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