The analysis of adhesion failure between Ni-coating and sintered NdFeB substrate
文献类型：会议论文
| 作者 | Heng, Xiu Y.; Yong, D.; Zhen, Lun S. |
| 出版日期 | 2011 |
| 会议日期 | JUL 12-16, 2010 |
| 关键词 | CORROSION PROTECTION SURFACE-COATINGS MAGNETS HYDROGEN BEHAVIOR ALLOYS |
| 卷号 | 266 |
| DOI | 10.1088/1742-6596/266/1/012053 |
| 英文摘要 | Ni-coating was widely used to protect the sintered NdFeB magnet from corrosion by Watt electro-deposition solution. However, the protection failure always occurs due to poor adhesion strength between Ni-coating and NdFeB substrate. In present work, the adhesion strength of the Ni-coating on NdFeB substrate was measured by vertical tensile method to strip Ni-coating from NdFeB substrate. The results revealed that the adhesion failure was occurred in the side of the NdFeB substrate due to a weak zone sometimes shown cracks located inside of NdFeB substrate, rather than in the interface between Ni-coating and NdFeB substrate. Comparing with cross section morphology of NdFeB magnet after pretreatment, it is concluded that the crack could be formed during the electro-deposition process. The effect of the pH value of bath on adhesion strength indicated that the crack could be induced due to electrochemical hydrogenation of NdFeB substrate during electro-deposition. |
| 会议录出版者 | Journal of Physics Conference Series |
| 学科主题 | Materials Science ; Physics |
| ISSN号 | 1742-6588 |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/23665]  |
| 专题 | 会议专题 会议专题_会议论文 |
| 推荐引用方式 GB/T 7714 | Heng, Xiu Y.,Yong, D.,Zhen, Lun S.. The analysis of adhesion failure between Ni-coating and sintered NdFeB substrate[C]. 见:. JUL 12-16, 2010. |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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