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J Chin Soc Corr Pro  1984, Vol. 4 Issue (1): 70-74    DOI:
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THE EFFECT OF YTTRIUM ON OXIDATION OF M38' ALLOYS AT 1000℃
Yin Yaode Lu Manqi Zhang Wanzhen (Institute of Metals Research;Academia Sinica)
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Abstract  The effect of additions of 0.1%Y and 0.5%Y to M38' alloy on the oxidation behavior and mechanism was studied on samples exposed in air at 1000℃ for 100hrs.The results obtained indicated that the oxidation rate of the alloy with 0.1%Y was lower than that of the alloy without Y,while further increase of Y content to 0.5% increased the oxidation rate only slightly. However,the oxidation rates of all these three alloys obeyed a parabolic rate law.The oxidation rate of alloy without Y increased rapidly after exposure of 70hrs. The observed results from optical micrographs showed there was internal oxidation zone in the alloy without addition of yttrium,oxidized at 1000℃ for 100hrs,but internal oxidation did not appear in alloys with addition of yttrium.
Received:  25 February 1984     
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Yin Yaode Lu Manqi Zhang Wanzhen (Institute of Metals Research;Academia Sinica). THE EFFECT OF YTTRIUM ON OXIDATION OF M38' ALLOYS AT 1000℃. J Chin Soc Corr Pro, 1984, 4(1): 70-74.

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https://www.jcscp.org/EN/     OR     https://www.jcscp.org/EN/Y1984/V4/I1/70

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