Peculiarities of formation of sintered electrodes of the Ti–Ti3P–CaO composition and their application in technology of pulsed electric-discharge machining of titanium
https://doi.org/10.17073/1997-308X-2015-4-10-25
Abstract
The influence of mechanical treatment on the structure and phase composition of Ti–10%Ca3(PO4)2 powder mixtures is investigated. The Ti–Ti3P–CaO ceramic electrode materials with a high uniformity of components and residual porosity of 5–7% are fabricated according to the pressing and vacuum sintering technology. The erosion ability of the Ti–Ti3P–CaO metal–ceramic electrode under the pulsed electric-discharge machining of titanium substrates is investigated and compared with the TiC0,5–Ti3POx–CaO electrodes fabricated by self-propagating high-temperature synthesis. Coatings fabricated when using Ti–Ti3P–CaO and TiC0,5–Ti3POx–CaO electrodes are characterized by high continuity, thickness up to 20 μm, microhardness up to 3,6 GPa, roughness to 3,3–4,6 μm, and the presence and uniform distribution of calcium and phosphorus bioactive elements.
About the Authors
P. A. Loginov
Национальный исследовательский технологический университет «МИСиС», г. Москва
Russian Federation
Russian Federation
Ph. D., junior research scientist of Scientific-educational centre SHS MISIS–ISMAN (119049, Russia, Moscow, Leninsky pr., 4). Tel.: (499) 237-53-36
E. A. Levashov
Национальный исследовательский технологический университет «МИСиС», г. Москва
Russian Federation
Russian Federation
Dr. Sci. (Tech.), prof., acad. of RANS, head of Department of powder metallurgy and functional coatings MISIS, director of Scientific-educational centre SHS MISIS–ISMAN. Tel.: (495) 638-45-00
A. Yu. Potanin
Национальный исследовательский технологический университет «МИСиС», г. Москва
Russian Federation
Ph. D., junior research scientist of Scientific-educational centre SHS MISIS–ISMAN. Tel.: (499) 237-53-36
Russian Federation
Ph. D., junior research scientist of Scientific-educational centre SHS MISIS–ISMAN. Tel.: (499) 237-53-36
A. E. Kudryashov
Национальный исследовательский технологический университет «МИСиС», г. Москва
Russian Federation
Ph. D., leading research scientist of Scientific-educational centre SHS MISIS–ISMAN. Tel./fax: (495) 955-00-26
Russian Federation
Ph. D., leading research scientist of Scientific-educational centre SHS MISIS–ISMAN. Tel./fax: (495) 955-00-26
O. S. Manakova
Национальный исследовательский технологический университет «МИСиС», г. Москва
Russian Federation
engineer of Scientific-educational centre SHS MISIS–ISMAN. Tel.: (495) 638-44-42
Russian Federation
engineer of Scientific-educational centre SHS MISIS–ISMAN. Tel.: (495) 638-44-42
N. V. Shvyndina
Национальный исследовательский технологический университет «МИСиС», г. Москва
Russian Federation
leading engineer of Scientific-educational centre SHS MISIS–ISMAN. Tel.: (495) 638-44-42.
Russian Federation
leading engineer of Scientific-educational centre SHS MISIS–ISMAN. Tel.: (495) 638-44-42.
I. V. Sukhorukov
Национальный исследовательский технологический университет «МИСиС», г. Москва
Russian Federation
engineer of Scientific-research laboratory of inorganic nanomaterials, MISIS. Tel.: (495) 638-44-47
Russian Federation
engineer of Scientific-research laboratory of inorganic nanomaterials, MISIS. Tel.: (495) 638-44-47
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Review
For citations:
Loginov P.A., Levashov E.A., Potanin A.Yu., Kudryashov A.E., Manakova O.S., Shvyndina N.V., Sukhorukov I.V. Peculiarities of formation of sintered electrodes of the Ti–Ti3P–CaO composition and their application in technology of pulsed electric-discharge machining of titanium. Powder Metallurgy аnd Functional Coatings (Izvestiya Vuzov. Poroshkovaya Metallurgiya i Funktsional'nye Pokrytiya). 2015;(4):45-58. (In Russ.) https://doi.org/10.17073/1997-308X-2015-4-10-25
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