Essays about: "cemented carbides"

Showing result 6 - 10 of 31 essays containing the words cemented carbides.

1. 6. Simulation of Residual Stresses in Cemented Carbide

   University essay from KTH/Teknisk mekanik

   Author : Emma Lundin; [2021]
   Keywords : ;

   Abstract : Cemented carbides are used in a multitude of applications within machining as they can withstand tough conditions. Therefore, the stress state in a virgin material is of interest. READ MORE

3. 7. The Effect of Cooling Rate on Sintered Cemented Carbides

   University essay from KTH/Materialvetenskap

   Author : Lina Berglund; [2020]
   Keywords : Sintering; Cooling rate; Cemented Carbide; Sintering; Coercivity; Contiguity; Sintring; Kylhastighet; Hårdmetaller; Koercivitet; Kontiguitet;

   Abstract : Magnetic measurements are useful tools for quality control of cemented carbides. Previous work at Sandvik Mining and Rock Technology has shown that the coercivity increases with increased cooling rate during sintering for a specific grade. READ MORE

4. 8. Binder Migration in Double Pressed Drill Bit Inserts

   University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/Fasta tillståndets fysik

   Author : Axel Bjerke; [2018]
   Keywords : Physics and Astronomy;

   Abstract : It is possible to produce functionally graded cemented carbides on a large scale by double pressing. Being able to predict the binder migration in WC-Co cemented carbides during the sintering is essential to the design of such cemented carbides. The cobalt content is one of the main factors determining the hardness gradient. READ MORE

5. 9. Design of cemented carbide with Ni-based superalloy binder strengthened with y’-Ni3Al precipitates

   University essay from KTH/Materialvetenskap

   Author : Oscar Edholm; [2018]
   Keywords : Cemented Carbide; Super alloy; Ni-alloy; Ni-Super alloy; Superalloy; Ni3Al; NiAl; Gamma Prime; Gamma; Precipitates; Ni3Al Precipitates; Master Alloy; Liquid Phase Sintering; Cementerad karbid; Hårdmetall; Superlegering; Ni-legering; Ni-Superlegering; Superalloy; Ni3Al; NiAl; Gamma Prim; Gamma; Precipitates; Ni3Al Precipitates; Mästerlegering; Utfällning;

   Abstract : Replacement of cobalt in cemented carbides has gained in attention recently because threats of regulations due to health issues (cancerogenic effect), increased demand from the electric vehicle industry and the questionable extraction from countries like Democratic Republic of Congo. In this report the use of Ni-based binder as an alternative binder for cemented carbides has been explored. READ MORE

6. 10. Effect of carbon activity on microstructure evolution in WC-Ni cemented carbides

   University essay from KTH/Materialvetenskap

   Author : Olivia Danielsson; [2018]
   Keywords : Cemented carbides; Hard metal; WC-Ni; Tungsten carbide; Nickel binder; Grain coarsening; Grain growth; Carbon activity; Size distribution; EBSD; Electron backscattered diffraction;

   Abstract : The aim of this work was to systematically study how the microstructure evolution is affected by the carbon activity in WC-Ni cemented carbides. Seven WC-9.59at%Ni alloys with different carbon activity were sintered at 1500 °C. READ MORE