Influencia de la implantación de iones cromo, aluminio y cerio en el comportamiento a oxidación del Ni<sub>3</sub>Al a temperaturas comprendidas entre 635 y 1.020°C

P. Pérez; J. L. González; P. Adeva

doi:10.3989/revmetalm.1998.v34.i1.655

Effect of chromium, aluminium and cerium implantation on the oxidation behaviour of Ni₃Al at temperatures in the range of 635-1,020°C

Authors

P. Pérez Dpto. de Metalurgia Física. Centro Nacional de Investigaciones Metalúrgicas (C.S.I.C.)
J. L. González Dpto. de Metalurgia Física. Centro Nacional de Investigaciones Metalúrgicas (C.S.I.C.)
P. Adeva Dpto. de Metalurgia Física. Centro Nacional de Investigaciones Metalúrgicas (C.S.I.C.)

DOI:

https://doi.org/10.3989/revmetalm.1998.v34.i1.655

Keywords:

Ion implantation, Oxidation, Intermetallics

Abstract

The effect of ion implantation on the oxidation behaviour of a powder metallurgy Ni₃Al in the 635- 1,020°C range is studied. The work is carried out by discontinuous thermogravimetry tests in aluminium, chromium and cerium implanted materials as well as in the non implanted intermetallics. The oxidation kinetics and characterization of scale are evaluated. The results show that the chromium implanted material exhibits the best oxidation behaviour up to 930°C. This ion favours the fast formation of a healing (Cr,Al)₂O₃ layer. The Al-implantation does not improve the oxidation behaviour of the intermetallics whereas Ce-implantation produces a harmful effect. At temperatures above 930°C the non-implanted material shows the lower mass-gains.

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Published

1998-02-28

How to Cite

Pérez, P., González, J. L., & Adeva, P. (1998). Effect of chromium, aluminium and cerium implantation on the oxidation behaviour of Ni3Al at temperatures in the range of 635-1,020°C. Revista De Metalurgia, 34(1), 18–28. https://doi.org/10.3989/revmetalm.1998.v34.i1.655

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Issue

Vol. 34 No. 1 (1998)

Section

Articles

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