منابع مشابه
TEM INVESTIGATIONS OF WC-Co ALLOYS AFTER CREEP EXPERIMENTS
Carbide tungsten cobalt alloys were deformed in compression or in three point bending in a temperature range 1000-1350°C and in a stress domain 30-1000MPa. In these conditions, the stress exponent n of WC-CO alloys is a function of only the cobalt volurnic ratio and tends tow rds n = 1 for pure B carbide. The apparent activation energy is 550 kj mole. T.E.M. investigations on pure carbide defor...
متن کاملFinite element modeling of erosive wear
Material damage caused by the attack of particles entrained in a fluid system impacting a surface at high speed is called ‘Erosion’. Erosion is a phenomenon that takes place in several engineering applications. It also can be used in several manufacturing process such as abrasive waterjet machining. Erosion is a complex process dependent on particle speed, size, angle of attack as well as the b...
متن کاملReciprocating sliding friction and wear behavior of electrical discharge machined zirconia-based composites against WC–Co cemented carbide
a Department of Mechanical Construction and Production, Ghent University (UGent), IR04, Sint-Pietersnieuwstraat 41, B-9000 Gent, Belgium b Department of Metallurgy and Materials Engineering, Catholic University Leuven (K.U. Leuven), MTM, Kasteelpark Arenberg 44 (bus 2450), B-3001 Leuven, Belgium c Department of Mechanical Engineering, Catholic University Leuven (K.U. Leuven), PMA, Celestijnenla...
متن کاملEffect of Carbide Particle Size on the Microstructure, Mechanical properties, and Wear Behavior of HVOF-sprayed WC-17% Co Coatings
This study investigates the effect of carbide particle size on the microstructure, mechanical properties, and abrasive wear resistance of WC-17%Co HVOF-sprayed coatings. The characteristics of WC-1, WC-2, and WC-3 coatings with carbide sizes of 1 µm, 0.9 µm, and 0.5 µm, respectively, were also investigated. WC-1 coating experienced the maximum carbon loss of 42%, while WC-2 and WC-3 coatings un...
متن کاملEffect of WC Concentration on Abrasive Wear Properties of the Thermally Sprayed WC -Ni Coatings
In this work the effects of WC concentration on abrasive wear behavior by thermally sprayed WC coating was evaluated using three body abrasive wear tester. A different combination of WC and NI coatings were deposited on steel substrates by flame spraying using powder with different WC concentrations (0 %, 12.5 %, 25 %, and 50 %). Flame torch was used for heating and coating of process. Microstr...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of the Japan Society of Powder and Powder Metallurgy
سال: 1996
ISSN: 0532-8799,1880-9014
DOI: 10.2497/jjspm.43.1439