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Volume 13 Issue 3
Oct.  2021
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Article Contents
Du Yuansheng, Lin Qin, Ye Wen, Hu Jun. The Kinetic Effects of Different Rare-earth Additives on the Oxidation Resistance of Ni80Cr20 Alloy[J]. Chinese Journal of Engineering, 1991, 13(3): 267-272. doi: 10.13374/j.issn1001-053x.1991.03.030
Citation: Du Yuansheng, Lin Qin, Ye Wen, Hu Jun. The Kinetic Effects of Different Rare-earth Additives on the Oxidation Resistance of Ni80Cr20 Alloy[J]. Chinese Journal of Engineering, 1991, 13(3): 267-272. doi: 10.13374/j.issn1001-053x.1991.03.030

The Kinetic Effects of Different Rare-earth Additives on the Oxidation Resistance of Ni80Cr20 Alloy

doi: 10.13374/j.issn1001-053x.1991.03.030
  • Received Date: 1990-08-16
    Available Online: 2021-10-26
  • The kinetic effects of different rare-earth additives on the oxidation resistance of Ni80Cr20 electrical heating alloy at high temperature are studied through thermogravimetry under the condition that the residual content of rare-earth is fixed. The apparent activation energies and the rate constants of oxidation reaction are calculated in the range of 1 050-1 200℃. The mechanism of oxidation is discussed. The structure, composition, and the adhesion of the oxide films are investigated by X-ray, metallograph etc. The mechanism of the oxidation resistance of Ni80Cr20 alloys with different rare-earth additives is also discussed.

     

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