Oxidation behavior of Fe-Cr alloys with high Cr content at 800℃

被引：0
|
作者：
Xu X.-H. [1 ]
Zhang T. [2 ]
Wang L. [1 ]
Zhang H.-H. [1 ]
Men D.-D. [1 ]
Xiang J.-H. [1 ]
An J.-S. [1 ]
机构：
[1] Jiangxi Key Laboratory of Surface Engineering, Jiangxi Science and Technology Normal University, Nanchang
[2] Institute of Solid State Physics, Chinese Academy of Sciences, Hefei
来源：
Xiang, Jun-Huai (xiangjunhuai@163.com) | 1600年 / Central South University of Technology卷 / 30期
基金：
中国国家自然科学基金;
关键词：
Fe-Cr; High Cr content; High temperature oxidation;
D O I：
10.11817/j.ysxb.1004.0609.2020-35727
中图分类号：
学科分类号：
摘要：
The cyclic oxidation in air and isothermal oxidation in 0.1 MPa pure oxygen at 800℃ for Fe-20Cr, Fe-30Cr and Fe-40Cr alloys with a high Cr content were investigated. The results show that the three alloys exhibit irregular oxidation kinetics under the cyclic oxidation condition. With the increase of Cr content, the oxidation resistance of the alloy is improved. After 24 h oxidation, Fe-20Cr obtains the highest mass gain per unit area with the value of 2.21×10-2 mg/(cm2•h), while Fe-40Cr obtains the lowest value of 1.45×10-2 mg/(cm2•h). The isothermal oxidation kinetics of the three alloys can be divided into two stages as transient and steady oxidation. At each stage the kinetics obeys the parabolic law quite well. On the whole, the three alloys show excellent oxidation resistance. Compared with the case of cyclic oxidation, the mass gain per unit area after 24 h oxidation of the three alloys decreases by almost an order of magnitude. On the contrary, with the increase of Cr content, the oxidation resistance of the three alloys decreases gradually and Fe-20Cr presents the best performance. Under all conditions, an exclusive and protective Cr2O3 layer forms on the surfaces of the three Fe-Cr alloys. © 2020, Science Press. All right reserved.
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页码：580 / 586
页数：6
相关论文
共 18 条
  • [1] Shi Z., Li J., Liu S., Isothermal oxidation behavior of single crystal superalloy DD6, Transactions of Nonferrous Metals Society of China, 22, 3, pp. 534-538, (2012)
  • [2] Liu L., Wu S., Chen Y., Lu S., Oxidation behavior of RE-modified nickel-based superalloy between 950℃ and 1150℃ in air, Transactions of Nonferrous Metals Society of China, 26, 4, pp. 1163-1169, (2016)
  • [3] Yan W., Yong L., Tang H., Li W., Han C., Oxidation behavior and mechanism of porous nickel-based alloy between 850 and 1000℃, Transactions of Nonferrous Metals Society of China, 27, 7, pp. 1558-1568, (2017)
  • [4] Wang X., Szpunar J.A., Effects of grain sizes on the oxidation behavior of Ni-based alloy 230 and N, Journal of Alloys & Compounds, 752, pp. 40-52, (2018)
  • [5] Xiao Y.-F., Liu Y., Tang Z., Wu L., Xu Y.-F., Qian J.-W., He Y.-H., Fabrication and high temperature oxidation resistance of porous Ni-Cr-Fe alloys, The Chinese Journal of Nonferrous Metals, 27, 2, pp. 295-304, (2017)
  • [6] Cao Z.-Q., Sun Y., Jia Z.-Q., High temperature oxidation behavior of nanocrystalline bulk Fe-60Ni-15Cr alloy, The Chinese Journal of Nonferrous Metals, 25, 10, pp. 2790-2797, (2015)
  • [7] Garza-Montes-De-Oca N.F., Ramirez-Ramirez J.H., Alvarez-Elcoro I., Rainforth W.M., Colas R., Oxide structures formed during the high temperature oxidation of hot mill work rolls, Oxidation of Metals, 80, 1, pp. 191-203, (2013)
  • [8] Monteiro M.J., Saunders S.R., Rizzo F.C., The effect of water vapour on the oxidation of high speed steel, kinetics and scale adhesion, Oxidation of Metals, 75, 1, pp. 57-76, (2011)
  • [9] Wang J.-M., Gao W., Sun B., Oxidation behavior of Fe-Cr alloy steel at 1000℃ in air, Journal of Shenyang University (Natural Science), 30, 4, pp. 259-262, (2018)
  • [10] Liang Y., Long Y.-Y., Fu G.-Y., Study on high temperature oxidation of Fe-Cr alloys, Liaoning Chemical Industry, 5, pp. 263-266, (2004)
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