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Spark Plasma Sintering and Characterization of NiCoCrAlY-Ta Superalloy Powder

Juarez García, Jose Manuel and Li, Zhong and Vahlas, Constantin and Díaz de la Torre, Sebastián and Juárez López, Fernando Spark Plasma Sintering and Characterization of NiCoCrAlY-Ta Superalloy Powder. (2010) Journal of Materials Science and Engineering, 4 (11). 57-63. ISSN 1934-8959

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Abstract

In the present study, the spark plasma sintering technique is used to densify commercial alloy NiCoCrAlY-Ta. Such powder was sintered at temperatures ranging between 900 and 1050 °C to yield various microstructures. Full compaction is achieved in a short time and the overall processing duration does not exceed 30 min. Microestructural and porosity evaluation was investigated by using scanning electron microscopy and chemical analysis. Two phases, β and γ, were identified in sintered microstructure by XR-diffraction. Micro Vickers tests were carried out on the sintered specimens, the resultant properties at room temperature are very promising whereas major hardness resistance was obtained at 1000 °C.

Item Type:Article
Additional Information:Thanks to David Publishing editor. The original PDF of the article can be found at Journal of Materials Science and Engineering website : http://www.davidpublishing.com/journals_info.asp?jId=637
HAL Id:hal-01169434
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Other partners > Instituto Politécnico Nacional - IPN (MEXICO)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Other partners > University of Toronto (CANADA)
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Deposited By: cirimat webmestre
Deposited On:29 Jun 2015 12:01

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