High-Temperature Oxidation Behavior and Oxide Scale Structure of Yttrium-Modified Ni-16Mo-7Cr-4Fe Superalloy at 1273K
文献类型：期刊论文
| 作者 | Li, XL; He, SM; Liang, JP; Zhou, XT |
| 刊名 | OXIDATION OF METALS
 |
| 出版日期 | 2019 |
| 卷号 | 92期号:43832页码:67-88 |
| ISSN号 | 0030-770X |
| 关键词 | X-RAY PHOTOELECTRON NICKEL-BASE ALLOYS CORROSION BEHAVIOR AQUEOUS OXIDATION REACTIVE ELEMENTS RESISTANCE ADDITIONS STEEL FILMS MICROSTRUCTURE |
| DOI | 10.1007/s11085-019-09914-0 |
| 文献子类 | 期刊论文 |
| 英文摘要 | Oxidation of a Ni-16Mo-7Cr-4Fe superalloy containing various yttrium concentrations (0.00, 0.05, 0.12, 0.21 and 0.43wt%) was undertaken in air at 1273K for times up to 250h. The nature and the structure of the oxide scales were investigated by synchrotron radiation techniques, TEM, SEM, XPS, etc. The oxidation kinetics of the alloys containing a low Cr content of 7wt% sectionally obeyed the parabolic law. The oxidation rate of the alloy in the steady-state stage was reduced by about a factor of 30 by the micro-addition of 0.05wt% yttrium. Yttrium microalloying greatly enhanced the selective oxidation of chromium and promoted the formation of a compact inner Cr2O3-enriched layer, which can inhibit the outward diffusion of oxidizable elements, especially the volatile-oxide-forming-element Mo, and remarkably improve the adhesion of the oxide scale to the matrix. The oxide scale of the alloy containing 0.05wt% Y had a thin duplex structure: an outer NiO/NiFe2O4 layer and an inner Cr2O3/YCrO3/spinel oxide layer. In comparison, the oxide scale of the Y-free alloy and the alloys containing excess Y roughly had a thick triple-layer structure: an outmost NiO/NiFe2O4 layer, an intermediate Mo0.84Ni0.16/Cr2O3/spinel oxide layer and an inner Cr2O3/spinel oxide layer. Increasing the concentration of Y in solid solution and reducing the amount of Y-bearing compound are helpful to optimize the effect of Y on improving the oxidation resistance of the alloy. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/32085]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China; 2.Chinese Acad Sci, Shanghai Inst Appl Phys, SSRF, Shanghai 201204, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, XL,He, SM,Liang, JP,et al. High-Temperature Oxidation Behavior and Oxide Scale Structure of Yttrium-Modified Ni-16Mo-7Cr-4Fe Superalloy at 1273K[J]. OXIDATION OF METALS,2019,92(43832):67-88. |
| APA | Li, XL,He, SM,Liang, JP,&Zhou, XT.(2019).High-Temperature Oxidation Behavior and Oxide Scale Structure of Yttrium-Modified Ni-16Mo-7Cr-4Fe Superalloy at 1273K.OXIDATION OF METALS,92(43832),67-88. |
| MLA | Li, XL,et al."High-Temperature Oxidation Behavior and Oxide Scale Structure of Yttrium-Modified Ni-16Mo-7Cr-4Fe Superalloy at 1273K".OXIDATION OF METALS 92.43832(2019):67-88. |
入库方式： OAI收割
来源：上海应用物理研究所
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