Selective Etching of Sr-Modified and Directionally Solidified Industrial Al-Si Eutectic Alloys for Fabricating Fibrous Eutectic Si
文献类型:期刊论文
作者 | Gao, Jianjun4,5; Gu, Wei3; Zhang, Fenfei3; Geng, Haibin5; Zhong, Jianhua5; Yao, Ligang5; Zhao, Zhilong2; Wang, Junning1 |
刊名 | METALS |
出版日期 | 2021-12 |
卷号 | 11期号:12 |
ISSN号 | 2075-4701 |
关键词 | eutectic Si Sr modification directional solidification selective etching |
DOI | 10.3390/met11121974 |
产权排序 | 5 |
英文摘要 | In order to fabricate fibrous eutectic Si, the selective etching of industrial Al-Si eutectic alloys directionally solidified at different growth rates and modified by different amounts of Sr was studied. Flake eutectic and fibrous Si were obtained by selective etching of non-modified, Sr-modified or directionally solidified Al-Si eutectic alloys. The optimal amount of Sr for fabricating branching eutectic Si was 0.04-0.07%. Through directional solidification with a high enough growth rate (more than 200 mu m/s), lamellar eutectic Si transforms to fibrous eutectic Si for use in non-modified Al-Si eutectic alloys. The potentiodynamic polarization and cyclic voltammetry methods were used to test the corrosion behavior of non-modified and Sr-modified Al-Si eutectic alloys. With a constant potential of 0.5 V in HCl solution, non-modified Al-Si eutectic alloys displayed initial pitting corrosion and subsequent spalling corrosion, and 0.04% Sr-modified samples displayed uniform pitting corrosion. Compared with non-modified Al-Si eutectic alloys, Sr-modified samples displayed better corrosion resistance with lower current density and shallower pit depth during the same etching conditions. |
语种 | 英语 |
出版者 | MDPI |
WOS记录号 | WOS:000736320400001 |
源URL | [http://ir.opt.ac.cn/handle/181661/95642] |
专题 | 西安光学精密机械研究所_先进光学仪器研究室 |
通讯作者 | Geng, Haibin |
作者单位 | 1.Chinese Acad Sci, Xian Inst Opt & Prec Mech 2.Northwestern Polytech Univ, Sch Mech Engn 3.Thinker Agr Machinery Co Ltd 4.Harbin Inst Technol, State Key Lab Adv Welding & Joining 5.Fuzhou Univ, Sch Mech Engn & Automat |
推荐引用方式 GB/T 7714 | Gao, Jianjun,Gu, Wei,Zhang, Fenfei,et al. Selective Etching of Sr-Modified and Directionally Solidified Industrial Al-Si Eutectic Alloys for Fabricating Fibrous Eutectic Si[J]. METALS,2021,11(12). |
APA | Gao, Jianjun.,Gu, Wei.,Zhang, Fenfei.,Geng, Haibin.,Zhong, Jianhua.,...&Wang, Junning.(2021).Selective Etching of Sr-Modified and Directionally Solidified Industrial Al-Si Eutectic Alloys for Fabricating Fibrous Eutectic Si.METALS,11(12). |
MLA | Gao, Jianjun,et al."Selective Etching of Sr-Modified and Directionally Solidified Industrial Al-Si Eutectic Alloys for Fabricating Fibrous Eutectic Si".METALS 11.12(2021). |
入库方式: OAI收割
来源:西安光学精密机械研究所
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