Effects of Multiple Pre-Sintering Heat Treatments and Consolidations Applied to Nicralc Alloys Processed by Mechanical Alloying

Alisson Kwiatkowski da Silva; Osvaldo Mitsuyuki Cintho; Selauco Vurobi; Joéverton I. Pereira; José Deodoro Trani Capochi

doi:10.4028/www.scientific.net/MSF.805.221

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HomeMaterials Science ForumMaterials Science Forum Vol. 805Effects of Multiple Pre-Sintering Heat Treatments...

Effects of Multiple Pre-Sintering Heat Treatments and Consolidations Applied to Nicralc Alloys Processed by Mechanical Alloying

Abstract:

NiCrAlC alloys are economical alternatives nickel superalloys to Co family Stellites^TM alloys, they are constituted by a dispersion of chromium carbides in a Ni3Al (γ’) intermetallic matrix. Mechanical Alloying (MA) allows better control of the carbides size and distribution in NiCrAlC matrix after sintering, although high porosity has been observed after uniaxial compaction and sintering of NiCrAlC alloys processed by MA. This research investigated the employment viability of pre-sintering heat-treatments followed by a new uniaxial compression in order to reduce porosity after final sintering. The characterization of the processed material by optical metallography and quantitative stereography appoints to the viability of this conception to reduce the porosity of NiCrAlC alloys processed by Mechanical Alloying.

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Periodical:

Materials Science Forum (Volume 805)

Pages:

221-226

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.805.221

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Online since:

September 2014

Authors:

Alisson Kwiatkowski da Silva*, Osvaldo Mitsuyuki Cintho, Selauco Vurobi, Joéverton I. Pereira, José Deodoro Trani Capochi

Keywords:

Mechanical Alloying, NiCrAlC Alloys, Sintering

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References

[1] H. Goldenstein, Y. N. Silva and H.N. Yoshimura: Intermetallics (2004), p.963.

Google Scholar

[2] W.S. Silva, Avaliação do comportamento mecânico e tribológico de ligas Ni-Cr-Al-C. Doutorado (Tese). São Paulo, 2006. Universidade de São Paulo (USP/POLI/Metal). (SP).

DOI: 10.11606/t.3.2006.tde-20042007-173509

Google Scholar

[3] C. Suryanarayana: Progress in Materials Science Vol. 46 (2001), p.1.

Google Scholar

[4] L. Lü And M. Lai: Mechanical alloying. (Boston: Kluwer, 1998).

Google Scholar

[5] J.L. Strudel: Mechanical properties of multiphase alloys. In: Cahn, R. W.; Haasen, P. Physical metallurgy. ( 4ed. Amsterdam: Elsevier Science, 1996. V. 3).

Google Scholar

[6] J.I. Pereira, A.K. Silva, S. Vurobi Jr, O.M. Cintho: Materials Science Forum Vol. 727-728 (2012), p.190.

DOI: 10.4028/www.scientific.net/msf.727-728.190

Google Scholar