| Accurate Characterization for Pore Properties of Aluminum-based Metallic Class Coating and the Influence of Pores on Corrosion Behavior of Coating | |
| Wang Xiaoming1; Zhu Sheng1; Yang Baijun2; Chen Yongxing1 | |
| Corresponding Author | Wang Xiaoming(1043933832@qq.com) |
| 2017-12-01 | |
| Source Publication | RARE METAL MATERIALS AND ENGINEERING
 |
| ISSN | 1002-185X |
| Volume | 46Issue:12Pages:3779-3784 |
| Abstract | The aluminum-based metallic glass coating on ZM5 surface with good corrosion resistance was prepared from Al86Ni6Y4.5Co2La1.5 amorphous powder by self-developed low-temperature supersonic spray system. The types and causes of pores in the coating were analyzed, the porosity of the coating was determined by X-ray three-dimensional imaging method, the pore geometry features were characterized, and the influence of pores on the corrosion behavior of the coating was clarified. The results show that the coating consists mainly of four types of conventional porosity defects, which are macro-type, layer-type, microsphere-type and microscopic-type. The porosities are substantially less than 1% and have little change along the thickness direction. The pores are nearly spherical, and their average sizes are less than 10 mu m, mostly about 5 mu m; the coatings of different porosities show a wide range of self passivation interval, self corrosion potentials are closer, and there is a positive correlation between the corrosion current densities and porosities. Individual special pores at the border with the characteristics of large-size and through-type are the fundamental cause of corrosion failure of the coating. |
| Keyword | aluminum-based metallic class coating low-temperature supersonic spray XRT pores corrosion behavior |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000425203200032 |
| Publisher | NORTHWEST INST NONFERROUS METAL RESEARCH |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/127402 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Wang Xiaoming |
| Affiliation | 1.Acad Armored Force Engn, Natl Key Lab Remfg, Beijing 100072, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China |
| Recommended Citation GB/T 7714 | Wang Xiaoming,Zhu Sheng,Yang Baijun,et al. Accurate Characterization for Pore Properties of Aluminum-based Metallic Class Coating and the Influence of Pores on Corrosion Behavior of Coating[J]. RARE METAL MATERIALS AND ENGINEERING,2017,46(12):3779-3784. |
| APA | Wang Xiaoming,Zhu Sheng,Yang Baijun,&Chen Yongxing.(2017).Accurate Characterization for Pore Properties of Aluminum-based Metallic Class Coating and the Influence of Pores on Corrosion Behavior of Coating.RARE METAL MATERIALS AND ENGINEERING,46(12),3779-3784. |
| MLA | Wang Xiaoming,et al."Accurate Characterization for Pore Properties of Aluminum-based Metallic Class Coating and the Influence of Pores on Corrosion Behavior of Coating".RARE METAL MATERIALS AND ENGINEERING 46.12(2017):3779-3784. |
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