Email this article Extending Life of Diamond Tools for Machining Nonmetallic Materials
- Authors: Sagradyan A.I.1, Agbalyan S.G.2, Martirosyan A.M.2, Ordyan N.A.1, Pogosyan H.V.2
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Affiliations:
- Kh. Abovyan Armenian State Pedagogical University
- National Polytechnic University of Armenia
- Issue: Vol 40, No 3 (2018)
- Pages: 216-221
- Section: Tools, Powders, Pastes
- URL: https://journals.rcsi.science/1063-4576/article/view/186224
- DOI: https://doi.org/10.3103/S1063457618030097
- ID: 186224
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Abstract
A mechanism of nucleation and formation of Ti–Cr coatings on synthetic diamond powders of grade HSD 90 has been revealed and investigated. The metal deposition has been found to occur selectively and heal surface defects (microcracks, steps, etc.). Ti is the matrix metal that forms the coating as a whole, while Cr is the alloying element. Thermal stability of metal-coated diamond powders has been studied by derivatography. It has been found out that in comparison to non-coated powders the coated ones have the oxidation resistance increased by 40°C and feature an interdiffusion at the coating–bond interface.
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About the authors
A. I. Sagradyan
Kh. Abovyan Armenian State Pedagogical University
Author for correspondence.
Email: sahradyanartak34@aspu.am
Armenia, pr. Tigran Mets 17, Yerevan
S. G. Agbalyan
National Polytechnic University of Armenia
Email: sahradyanartak34@aspu.am
Armenia, ul. Teryan 105, Yerevan
A. M. Martirosyan
National Polytechnic University of Armenia
Email: sahradyanartak34@aspu.am
Armenia, ul. Teryan 105, Yerevan
N. A. Ordyan
Kh. Abovyan Armenian State Pedagogical University
Email: sahradyanartak34@aspu.am
Armenia, pr. Tigran Mets 17, Yerevan
H. V. Pogosyan
National Polytechnic University of Armenia
Email: sahradyanartak34@aspu.am
Armenia, ul. Teryan 105, Yerevan
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