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|Title:||The Effect of Cr- and Y-Implantation on the Oxidation Behaviour of PM Ni3Al.|
|Authors:||PEREZ P.; GONZALEZ CARRASCO J.l.; ADEVA P.; HAANAPPEL Vincentius antonius; STROOSNIJDER Marinus frederik|
|Citation:||Materials Science and Technology vol. 15 p. 345-351|
|Type:||Articles in periodicals and books|
|Abstract:||The effect of Cr- and Y-implantation on the isothermal and cyclic oxidation behaviour in air of a boron-doped Ni3 Al alloy at 585 and 900*C for up to 200 h is discussed. Y-implantation proved to be detrimental, causing slightly higher oxidation rates at both temperatures, while the scale formed at 900*C on Y-implanted Ni3 Al was prone to spallation. A similar `scale pattern was observed for the non-implanted material, however, the oxide scale formed on the non-implanted material did not show any significant susceptibility for scale cracking and spallation. Cr-implantation on the other hand was beneficial in that it decreased the oxidation rates at both temperatures due to the formation of a continuous healing aluminia layer, induced by the presence of chromium. No spallation of the oxide scale occurred, even after 200 cycles, at 900*C .|
|JRC Directorate:||Joint Research Centre Historical Collection|
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