Experimental studies and modeling for the transition from internal to external oxidation of three-phase Nb-Si-Cr alloys
Experimental studies and modeling for the transition from internal to external oxidation of three-phase Nb-Si-Cr alloys
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三相 Nb-Si-Cr 合金从内氧化到外氧化转变的实验研究和建模
DOI:
10.1016/j.pnsc.2018.11.005
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发表时间:
2018-12
期刊:
影响因子:
--
通讯作者:
Chungen Zhou
中科院分区:
文献类型:
--
作者:
Wei Jiang;Wei Shao;Jiangbo Sha;Chungen Zhou
A modified oxidation model, which assumes the cylindrical-like morphology of Cr2Nb phase, has been proposed to examine the conditions to form external scale of three-phase Nb-base alloys in this paper. The oxidation behavior of three-phase Nb-base alloys was tested at 1250 °C for 1 h and 7 h, and the experimental results were compared with the simulated results. The results show that the external CrNbO4scale can be achieved by length-radius ratio and volume fraction increasing for Cr2Nb phase. The simulated results are consistent with the experimental results.
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DOI:
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发表时间:
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期刊:
Progress in Natural Science: Materials International
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