Oxidation of four NiAl-Ag alloys at 900 degrees C in 1 atm O-2
文献类型：期刊论文
| 作者 | Zhang, XJ; Niu, Y |
| 刊名 | PRICM 5: THE FIFTH PACIFIC RIM INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS AND PROCESSING, PTS 1-5
 |
| 出版日期 | 2005 |
| 卷号 | 475-479页码:775-778 |
| 关键词 | NiAl-Ag ternary alloys oxidation |
| ISSN号 | 0255-5476 |
| 通讯作者 | Zhang, XJ(xjzhang@imr.ac.cn) |
| 英文摘要 | Small amounts of silver have been added to the intermetallic compound beta-NiAl for the purpose of improving its mechanical properties. Four ternary NiAl-Ag alloys NiAl-0.5Ag, NiAl-1Ag, NiAl-5Ag and NiAl-10Ag (at.%), and an Ag-free beta-NiAl have been oxidized at 900 degrees C for 24 h in 1 atm O-2 to study the effect of the presence of silver on the oxidation of beta-NiAl. The kinetics of all the alloys were generally composed of two main parabolic stages with slightly larger parabolic rate constants for the second stage, except for NiAl-10Ag, which has an instantaneous parabolic rate constant decreasing with time. A continuous external layer of Al2O3 formed on all the alloys. In particular, the scales formed on NiAl-5Ag and NiAl-10Ag contained a thin and discontinuous layer of silver at the alloy/Al2O3 interface. Furthermore, NiAl-10Ag formed also isolated Ag particles or even a discontinuous Ag layer occasionally surmounting the Al2O3 scale. The addition of minor amounts of silver does not affect significantly the oxidation of beta-NiAl, because silver is essentially present as a second phase due to its very small solubility in this intermetallic compound. |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000227494709178 |
| 出版者 | TRANS TECH PUBLICATIONS LTD |
| 源URL | [http://ir.imr.ac.cn/handle/321006/85192]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Zhang, XJ |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Corros & Protect, Met Res Inst, Shenyang 110016, Peoples R China 2.Shenyang Inst Chem Technol, Shenyang 110142, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, XJ,Niu, Y. Oxidation of four NiAl-Ag alloys at 900 degrees C in 1 atm O-2[J]. PRICM 5: THE FIFTH PACIFIC RIM INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS AND PROCESSING, PTS 1-5,2005,475-479:775-778. |
| APA | Zhang, XJ,&Niu, Y.(2005).Oxidation of four NiAl-Ag alloys at 900 degrees C in 1 atm O-2.PRICM 5: THE FIFTH PACIFIC RIM INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS AND PROCESSING, PTS 1-5,475-479,775-778. |
| MLA | Zhang, XJ,et al."Oxidation of four NiAl-Ag alloys at 900 degrees C in 1 atm O-2".PRICM 5: THE FIFTH PACIFIC RIM INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS AND PROCESSING, PTS 1-5 475-479(2005):775-778. |
入库方式： OAI收割
来源：金属研究所
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