Wear Resistance of Bronze-Matrix Samples of Diamond Tubular Drills with Ultrafine Diamond and Molybdenum Powder Reinforcement

The paper examines the abrasive wear rate of samples produced by vacuum impregnation of ultrafine diamond (ASM 1/0) and molybdenum powders with tin bronze. The tests were performed using a SiC-based abrasive wheel in the presence of cooling water. The introduction of and increase in the ultrafine di...

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Vydané v:Powder metallurgy and metal ceramics Ročník 58; číslo 9-10; s. 608 - 612
Hlavní autori: Umansky, V.P., Brodnikovsky, N.P., Bashchenko, O.A., Kulakov, A.S.
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: New York Springer US 01.01.2020
Springer
Springer Nature B.V
Predmet:
Abrasive wear
Abrasive wheels
Ceramics
Characterization and Evaluation of Materials
Chemistry and Materials Science
Composites
Diamond drills
Diamond tools
Glass
Hardness
Materials Science
Mechanical properties
Metallic Materials
Molybdenum
Natural Materials
Porosity
Powder Metallurgy Industry and Managerial Economics
Powders
Silicon compounds
Tin
Tin bronzes
Ultrafines
Wear rate
Wear resistance
matrix samples
wear rate
impregnation
friction
ISSN:1068-1302, 1573-9066
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Shrnutí:The paper examines the abrasive wear rate of samples produced by vacuum impregnation of ultrafine diamond (ASM 1/0) and molybdenum powders with tin bronze. The tests were performed using a SiC-based abrasive wheel in the presence of cooling water. The introduction of and increase in the ultrafine diamond powder in the samples substantially decrease their wear rate (by a factor of 78). The hardness of the samples first increases when diamond powder content rises to 5 wt.% and then decreases when ASM 1/0 content further rises to 11 wt.% because of small porosity that appears in the samples. The use of a bronze matrix containing more than 15 wt.% Sn does not decrease the wear rate of the test samples and, hence, of the associated diamond tools, in spite of increase in their hardness.
Bibliografia:ObjectType-Article-1
SourceType-Scholarly Journals-1
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content type line 14
ISSN:1068-1302
1573-9066
DOI:10.1007/s11106-020-00114-z