Effects of hydrogen on the dynamic mechanical properties and microstructure of 7055 and 7A52 aluminum alloys
文献类型：期刊论文
| 作者 | Li, He1,3; Yang, Zixuan1,3,4; Zhang, Chaoqun1; Peng, Wenfei1,3; Ma, Kai2; Oleksandr, Moliar1,3 |
| 刊名 | MATERIALS CHARACTERIZATION
 |
| 出版日期 | 2023-09-01 |
| 卷号 | 203页码:11 |
| 关键词 | Hydrogen Dynamic mechanical properties Microstructures |
| ISSN号 | 1044-5803 |
| DOI | 10.1016/j.matchar.2023.113151 |
| 通讯作者 | Yang, Zixuan(yangzixuan@nbu.edu.cn) ; Peng, Wenfei(pengwenfei@nbu.edu.cn) |
| 英文摘要 | In the present work, the effect of hydrogen on the impact resistance of the 7055 and 7A52 aluminum alloys have been experimentally investigated by using split Hopkinson pressure bar (SHPB) and electrochemical hydrogen charging technique. It was first found that hydrogen induced stress chase after yield deformation in 7055 and 7A52 alloys. Meanwhile, hydrogen reduced the yield strengths of the two alloys. Besides, the evolution of microstructures including cracks, particles and dislocations has been quantitatively analyzed by polarizing microscope (PM), scanning electron microscope (SEM) and transmission electron microscopy (TEM). It has been found that both two aluminum alloys are sensitive to hydrogen embrittlement under high-speed deformation conditions. The hydrogen causes hydrogen compression cracks at grain boundaries, pores, and Al2Cu particles in the material, and the hydrogen cracking of both aluminum alloys after impact appeared to be layered, and the lower layer cracking was flat, which indicated that the hydrogen made the alloy embrittle to some extent. Besides, hydrogen reduces the hindering effect of copper-containing phase and large & eta; phase on dislocation movement, which makes the dislocations distribution inside the 7055 alloy grains more uniform. The results show that 7000-series aluminum alloys are sensitive to hydrogen embrittlement under high-speed deformation conditions. |
| 资助项目 | National Natural Science Foun-dation of China[52205386] ; National Natural Science Foun-dation of China[51801106] ; National Natural Science Foun-dation of China[52075272] ; Science and Technology Plan of Ningbo City[2019B10100] ; Science and Technology Plan of Ningbo City[2021Z099] ; Provincial Universities Basic Scientific Research Strategy[SJLZ2021002] ; K. C. Wong Magna Fund in Ningbo University |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001034583100001 |
| 出版者 | ELSEVIER SCIENCE INC |
| 资助机构 | National Natural Science Foun-dation of China ; Science and Technology Plan of Ningbo City ; Provincial Universities Basic Scientific Research Strategy ; K. C. Wong Magna Fund in Ningbo University |
| 源URL | [http://ir.imr.ac.cn/handle/321006/178705]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Yang, Zixuan; Peng, Wenfei |
| 作者单位 | 1.Ningbo Univ, Coll Mech Engn & Mech, Ningbo 315211, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China 3.Ningbo Univ, Key Lab Impact & Safety Engn, Minist Educ, Ningbo 315211, Peoples R China 4.Ningbo Univ, Zhejiang Prov Engn Res Ctr Safety Pressure Vessel, Ningbo 315211, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, He,Yang, Zixuan,Zhang, Chaoqun,et al. Effects of hydrogen on the dynamic mechanical properties and microstructure of 7055 and 7A52 aluminum alloys[J]. MATERIALS CHARACTERIZATION,2023,203:11. |
| APA | Li, He,Yang, Zixuan,Zhang, Chaoqun,Peng, Wenfei,Ma, Kai,&Oleksandr, Moliar.(2023).Effects of hydrogen on the dynamic mechanical properties and microstructure of 7055 and 7A52 aluminum alloys.MATERIALS CHARACTERIZATION,203,11. |
| MLA | Li, He,et al."Effects of hydrogen on the dynamic mechanical properties and microstructure of 7055 and 7A52 aluminum alloys".MATERIALS CHARACTERIZATION 203(2023):11. |
入库方式： OAI收割
来源：金属研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。