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首页> 外文期刊>Materials at High Temperatures >Cyclic oxidation behaviour of TP446, TP310, and IN617 in air at 871 degrees C and 982 degrees C
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Cyclic oxidation behaviour of TP446, TP310, and IN617 in air at 871 degrees C and 982 degrees C

机译：TP446，TP310和IN617的循环氧化行为在871℃和982摄氏度的空气中

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摘要

The influence of frequency of thermal cycling on the oxidation behaviour of alloys TP446, TP310, and Inconel 617 in dry air at very high temperatures (871 degrees C and 982 degrees C) is reported. The effects on the iron-basedalloys were complex, whereas that of the Ni-based alloy was not greatly affected by cycling frequency. Unexpected trends were increased oxidation rates of TP310 and Inconel 617 with increased cycle frequency at 871 degrees C, whereas those of TP446 decreased. At 982 degrees C, the oxidation rates of TP310 and TP446 decreased with increasing cycle frequency, though less so for TP310. While the scales formed on the iron-based alloys consisted of a basal layer corresponding to chromia containing Mn, and an outer layer corresponding to manganese chromate, differences in the rates of transport of Cr, Mn and Si in the alloys at the different temperatures appeared to account in large measure for the differences in response to thermal cycling.
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