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INFLUENCES OF Y~+-IMPLANTATION ON GROWTH STRESS OF OXIDE SCALE FORMED ON ALUMINIZED Ni-BASE ALLOY |
XIN Li; LI Meishuan; LI Tiefan (Corrosion Science Laboratory; Institute of Corrosion and Protection of Metals; Chinese Academy of Sciences; Shenyang 110015) |
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Cite this article:
XIN Li; LI Meishuan; LI Tiefan (Corrosion Science Laboratory; Institute of Corrosion and Protection of Metals; Chinese Academy of Sciences; Shenyang 110015). INFLUENCES OF Y~+-IMPLANTATION ON GROWTH STRESS OF OXIDE SCALE FORMED ON ALUMINIZED Ni-BASE ALLOY. Acta Metall Sin, 1996, 32(9): 949-954.
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Abstract The influences of implanted yttrium with doses of 1×10~(17), 1×10~(16)Y~+/cm~2 on the growth stress of oxide scales formed on aluminized Ni-15Cr-6Al alloy were studied by using apparatus of oxide scale stress measurement. The experimental results indicated that Y~+-implantation at the two doses had no effects on the oxidation kinetics of the alloy, but decreased the growth stress in the oxide scale formed at 1100℃. The results are discussed. The reason that ion implantation with two doses decreases the growth stress and improves the adhension of alumina scale may be that Y~+- implantation changes the oxidation mechanism of the scale and facilitates the plastic deformation of the scale.
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Received: 18 September 1996
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