| Effect of doping aluminum and yttrium on high-temperature oxidation behavior of Ni-11Fe-10Cu alloy |
| Cheng, XH; Fan, L; Liu, L; Du, KF; Wang, DH; Wang, DH (reprint author), Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430072, Peoples R China.
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| 2016-11-01
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| 发表期刊 | JOURNAL OF RARE EARTHS
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| ISSN | 1002-0721
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| 卷号 | 34期号:11页码:1139-1147 |
| 摘要 | Aiming to develop materials for construction of the set-up and electrode of high-temperature molten salt reactors, the effect of Al and Y on the high-temperature oxidation behavior of Ni-11Fe-10Cu at 750 and 950 degrees C in air were investigated. The oxidation kinetics of Ni-11Fe-10Cu alloy followed parabolic law at 750 degrees C without spallation and linear law at 950 degrees C with severe spallation, while that of Ni-11Fe-10Cu-6Al-3Y alloy followed parabolic law at 750 and 950 degrees C without spallation. The parabolic rate constant (kp) of Ni-11Fe-10Cu was smaller than that of Ni-11Fe-10Cu-6Al-3Y at 750 degrees C. The oxide scale formed on Ni-11Fe-10Cu at 750 degrees C was composed of a CuO outer layer, a NiFe2O4 middle layer and a NiO inner layer. The oxide scale formed on Ni-11Fe-10Cu-6Al-3Y at 750 degrees C was also composed of the similar triplex layers in addition to an internal oxidation zone containing Al, Ni and Cu oxide and the microstructure of the scale changed with increasing temperature. Although the doping Al and Y could improve the adherence of oxide scale, it could aggravate the extent of internal oxidation. Based on the combination of X-ray diffraction (XRD), scanning electron microscopy/energy dispersive spectroscopy (SEM/EDX) analysis, the microstructure and growth mechanism of the multi-layer oxide scale was studied and the effect of doping Al and Y on the oxidation behavior of Ni-11Fe-10Cu alloy was also discussed. |
| 部门归属 | [cheng xinhua
; du kaifa
; wang dihua] wuhan univ, sch resource & environm sci, wuhan 430072, peoples r china
; [fan lei
; liu li] chinese acad sci, inst met res, shenyang 10016, peoples r china
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| 关键词 | Ni-fe-cu Alloy
Doping
Rare Earths
High-temperature Oxidation Behavior
Multi-layer Oxide Scale
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| 学科领域 | Chemistry, Applied
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| 资助者 | National Natural Science Foundation of China [51325102]; International Science and Technology Cooperation Program of Ministry of Science and Technology [2015DFA90750]
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| 收录类别 | sci
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| 语种 | 英语
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| WOS记录号 | WOS:000386781200011
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| 引用统计 |
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| 文献类型 | 期刊论文
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| 条目标识符 | http://ir.imr.ac.cn/handle/321006/76201
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| 专题 | 中国科学院金属研究所
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| 通讯作者 | Wang, DH (reprint author), Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430072, Peoples R China. |
推荐引用方式
GB/T 7714 |
Cheng, XH,Fan, L,Liu, L,et al. Effect of doping aluminum and yttrium on high-temperature oxidation behavior of Ni-11Fe-10Cu alloy[J]. JOURNAL OF RARE EARTHS,2016,34(11):1139-1147.
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| APA |
Cheng, XH,Fan, L,Liu, L,Du, KF,Wang, DH,&Wang, DH .(2016).Effect of doping aluminum and yttrium on high-temperature oxidation behavior of Ni-11Fe-10Cu alloy.JOURNAL OF RARE EARTHS,34(11),1139-1147.
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| MLA |
Cheng, XH,et al."Effect of doping aluminum and yttrium on high-temperature oxidation behavior of Ni-11Fe-10Cu alloy".JOURNAL OF RARE EARTHS 34.11(2016):1139-1147.
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