Investigation into the Properties of Electroerosion Powders and Hard Alloy Fabricated from Them by Isostatic Pressing and Sintering
https://doi.org/10.17073/0021-3438-2014-6-51-55
Abstract
Results of the investigation into the properties of the hard alloy fabricated by isostatic pressing and sintering of powders prepared by EDM dispersion of tungsten-containing waste of the T15K6 alloy in distilled water and burning kerosene. An original installation developed and patented by the authors was used for EDM dispersion of conductive materials. Isostatic pressing of the powder was performed using an EPSI press (Belgium) at a pressure of 300 MPa and sintering was performed in a Nabertherm high-temperature furnace (Germany) in vacuum at 1500 °C for 2 h. The content of main elements (W, Ti, Co) both in powder and in the hard alloy fabricated from it was established using the electron probe microanalysis. Microhardness of powder and alloy is investigated and it is shown that powder prepared by EDM dispersion in kerosene and alloy made of it have increased HV compared with the samples fabricated using water as the working liquid.
About the Authors
E. V. Ageev
Юго-Западный государственный университет (ЮЗГУ), г. Курск
Russian Federation
Russian Federation
R. A. Latypov
Московский государственный машиностроительный университет (МАМИ)
Russian Federation
Russian Federation
E. V. Ageeva
Юго-Западный государственный университет (ЮЗГУ), г. Курск
Russian Federation
Russian Federation
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Review
For citations:
Ageev E.V., Latypov R.A., Ageeva E.V. Investigation into the Properties of Electroerosion Powders and Hard Alloy Fabricated from Them by Isostatic Pressing and Sintering. Izvestiya. Non-Ferrous Metallurgy. 2014;(6):51-55. (In Russ.) https://doi.org/10.17073/0021-3438-2014-6-51-55
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