OXIDATION OF TITANIUM-ZIRCONIUM ALLOYS.

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Voitovich, R.F.
Golovko, E.I.
D'yakonova, L.V.
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Protection of Metals | 1976年 / 12卷 / 05期
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Catastrophic oxidation of Zr-Ti alloys in the temperature range 600-1200 degree , as in the case of oxidation of Hf-Ti alloys, is explained by the fact that during oxidation of alloys in the beta -condition, oxygen dissolved in the surface layer stabilizes the alpha -phase. At a certain concentration beta - alpha -polymorphic transformation commences, accompanied by disintegration of the lattice. This facilitates a rapid shift of the oxygen front into the body of the alloy, and assists transfer of titanium to the scale.
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页码:518 / 521
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