Effect of high energy milling on the microstruture and properties of wc-ni composite
AUTOR(ES)
Torres, Camila dos Santos, Schaeffer, Lírio
FONTE
Materials Research
DATA DE PUBLICAÇÃO
2010-09
RESUMO
Hard metal is a composite material used in several areas of machining, mining and construction. It can be applied directly on oil and gas drilling equipment components. The main objective of this work was to apply a high energy milling technique to produce the WC-Ni composite and study the effects of milling time in the material properties. The milling of hard metal WC-20Ni, was performed for milling times of 1, 2, 4, 8, 16, 32 and 64 hours. The starting powders were characterized by laser sedigraphy, SEM and EDS. Microstrutural analysis of the sintered samples was performed by optical microscopy, microhardness and density by Archimedes. The best results for the WC-20%Ni composite were achieved for 8 hours milling, where the density and hardness reached 97.09% and 1058 ± 54 HV, respectively, after sintering.
Documentos Relacionados
- Efeito da moagem de alta energia na morfologia e compressibilidade do compósito WC-Ni = Effect of high energy milling on the morphology and compressibility of WC-Ni composite powder
- Estudo da moagem de alta energia e sinterização de metal duro WC-Ni
- Efeito da moagem de alta energia na morfologia e compressibilidade do compósito WC-Ni
- The Effect of Electroless Bath Parameters and Heat Treatment on the Properties of Ni-P and Ni-P-Cu Composite Coatings
- Effect of TiC Particles Concentration on Microstructure and Properties of Ni-TiC Composite Coatings