| Effect of grain size on high-temperature oxidation behavior of Cu-80Ni alloy | |
| Z. Q. Cao; Y. Niu; L. J. Cao; W. T. Wu | |
| 2003 | |
| Source Publication | Transactions of Nonferrous Metals Society of China
 |
| ISSN | 1003-6326 |
| Volume | 13Issue:4Pages:907-911 |
| Abstract | The thermogravimetric analysis of binary Cu-80Ni alloys prepared respectively by conventional casting (CA) and mechanical alloying(MA) techniques and presenting widely different grain sizes was performed at 800 degreesC in air in order to study the effect of grain size change on the oxidation behavior of a solid solution alloy. The results show that the kinetic curves for the oxidation of the two alloys are complex and deviate from the parabolic rate law and usually are not composed of a single stage. Mixed scales were produced on the CACu-80Ni alloy surface, which consists of a mixture of copper and nickel oxides. However, oxide scale for MACu-80Ni alloy is mainly composed of a thick compact and continuous inner layer of nickel oxide. The reduction in the alloy grain size speeds up the diffusion of the more reactive component nickel from the alloy to alloy/oxide scale interface and completes the transition from a mixed scale to continuous scale of nickel oxide. |
| description.department | shenyang normal univ, dept chem, shenyang 110034, peoples r china. chinese acad sci, inst res met, state key lab corros & protect, shenyang 110015, peoples r china. |
| Keyword | Copper-nickel Alloy Cu-80ni Alloy Single-phase High-temperature Oxidation Cu-ni Alloys Diffusion Copper Oxygen |
| URL | 查看原文 |
| WOS ID | WOS:000184987700033 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/35789 |
| Collection | 中国科学院金属研究所 |
| Recommended Citation GB/T 7714 | Z. Q. Cao,Y. Niu,L. J. Cao,et al. Effect of grain size on high-temperature oxidation behavior of Cu-80Ni alloy[J]. Transactions of Nonferrous Metals Society of China,2003,13(4):907-911. |
| APA | Z. Q. Cao,Y. Niu,L. J. Cao,&W. T. Wu.(2003).Effect of grain size on high-temperature oxidation behavior of Cu-80Ni alloy.Transactions of Nonferrous Metals Society of China,13(4),907-911. |
| MLA | Z. Q. Cao,et al."Effect of grain size on high-temperature oxidation behavior of Cu-80Ni alloy".Transactions of Nonferrous Metals Society of China 13.4(2003):907-911. |
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