The development of nanostructured materials has been exploited in enormous applications nowadays owing to the remarkable properties possessed by these advanced materials. Among these materials are tungsten carbide (WC)-based alloys, which have been widely used in a range of industrial applications including cutting and drilling tools, wear resistant components in wire drawing, and wear resistant surfaces in various equipments and dies. These alloys are processed using a variety of techniques in which powder metallurgy has been widely adopted. The key challenge lies in retaining the nanostructure of WC-based powders after the consolidation stage that is used to obtain dense parts following powder metallurgy processing. In the present study, the densification parameters, microstructural development and mechanical behavior of WC containing 6, 9 and 12wt. %Co powders in the range of nanometer to micron size of WC particles were investigated. Two types of consolidation techniques were considered namely spark plasma sintering (SPS) and microwave sintering (MW) for a comparative analysis as well as to explore the suitable process that will minimize grain growth. The consolidated (sintered) samples were characterized by X-ray diffraction, scanning electron microscopy, and hardness measurement.
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ASME 2011 International Mechanical Engineering Congress and Exposition
November 11–17, 2011
Denver, Colorado, USA
Conference Sponsors:
- ASME
ISBN:
978-0-7918-5497-6
PROCEEDINGS PAPER
Effect of Consolidation Mechanism on the Properties of Nanostructured WC-6, 9, 12 wt%Co Hardmetals
Tahar Laoui,
Tahar Laoui
King Fahd University of Petroleum & Minerals, Dhahran, Saudi Arabia
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Abbas Saeed Hakeem,
Abbas Saeed Hakeem
King Fahd University of Petroleum & Minerals, Dhahran, Saudi Arabia
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Kachalla Abdullahi,
Kachalla Abdullahi
King Fahd University of Petroleum & Minerals, Dhahran, Saudi Arabia
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Nouari Saheb,
Nouari Saheb
King Fahd University of Petroleum & Minerals, Dhahran, Saudi Arabia
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Nasser Al-Aqeeli
Nasser Al-Aqeeli
King Fahd University of Petroleum & Minerals, Dhahran, Saudi Arabia
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Tahar Laoui
King Fahd University of Petroleum & Minerals, Dhahran, Saudi Arabia
Abbas Saeed Hakeem
King Fahd University of Petroleum & Minerals, Dhahran, Saudi Arabia
Kachalla Abdullahi
King Fahd University of Petroleum & Minerals, Dhahran, Saudi Arabia
Nouari Saheb
King Fahd University of Petroleum & Minerals, Dhahran, Saudi Arabia
Nasser Al-Aqeeli
King Fahd University of Petroleum & Minerals, Dhahran, Saudi Arabia
Paper No:
IMECE2011-63643, pp. 667-674; 8 pages
Published Online:
August 1, 2012
Citation
Laoui, T, Hakeem, AS, Abdullahi, K, Saheb, N, & Al-Aqeeli, N. "Effect of Consolidation Mechanism on the Properties of Nanostructured WC-6, 9, 12 wt%Co Hardmetals." Proceedings of the ASME 2011 International Mechanical Engineering Congress and Exposition. Volume 11: Nano and Micro Materials, Devices and Systems; Microsystems Integration. Denver, Colorado, USA. November 11–17, 2011. pp. 667-674. ASME. https://doi.org/10.1115/IMECE2011-63643
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