Peculiarities of Compacting during Sintering of VH8M Alloy with Addition of Nanosized Tungsten Carbide
https://doi.org/10.17073/1997-308X-2014-3-26-30
Abstract
There were introduced shrinkage curves of alloys obtained from hard-alloy mixtures based on WC-8%Ni, activated by means of introduction of 10 % nano-sized WC, and charging material without additives over the ranges of temperature 800–1500 °C. There was investigated pore structure and microstructure of specimens on the different stages of sintering. There was uncovered peculiarity of modified alloy’s compression that involves disalign- ment of shrinkage curve in field of more low temperatures. This is allows decrease temperature of its vacuum compression sintering, obtain more fine- grained structure and attain high indices of hardness/enduring quality, without decreasing of strength characteristics. There were investigated physi- cal and mechanical properties and microstructure of compression sintering specimens from activated alloy VN8M and standard VH8 without additives
About the Authors
D. V. Fedorov
ООО «Вириал», 194156, г. Санкт-Петербург, пр-т Энгельса, 27, а/я 52
Russian Federation
Russian Federation
O. V. Semenov
ООО «Вириал», 194156, г. Санкт-Петербург, пр-т Энгельса, 27, а/я 52
Russian Federation
Russian Federation
V. I. Rumyantsev
ООО «Вириал», 194156, г. Санкт-Петербург, пр-т Энгельса, 27, а/я 52
Russian Federation
Russian Federation
S. S. Ordanyan
Санкт-Петербургский государственный технологический институт (СПбГТИ) (технический университет), 190013, г. Санкт-Петербург, Московский пр-т, 26
Russian Federation
Russian Federation
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Review
For citations:
Fedorov D.V., Semenov O.V., Rumyantsev V.I., Ordanyan S.S. Peculiarities of Compacting during Sintering of VH8M Alloy with Addition of Nanosized Tungsten Carbide. Powder Metallurgy аnd Functional Coatings (Izvestiya Vuzov. Poroshkovaya Metallurgiya i Funktsional'nye Pokrytiya). 2014;(3):26-30. (In Russ.) https://doi.org/10.17073/1997-308X-2014-3-26-30
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