Enhancing the mechanical properties of wire arc directed energy deposition Al-Zn-Mg-Cu aluminum alloy through cyclic deep cryogenic treatment
文献类型：期刊论文
| 作者 | Hao, Shuai1; Guo, Xinpeng2; Cui, Jiayuan1; Xue, Peng3; Xu, Rongzheng1; Guo, Xuming1 |
| 刊名 | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
 |
| 出版日期 | 2024-09-01 |
| 卷号 | 909页码:12 |
| 关键词 | Wire arc directed energy deposition Al-Zn-Mg-Cu aluminum alloy Cyclic deep cryogenic treatment Precipitated phase Mechanical property |
| ISSN号 | 0921-5093 |
| DOI | 10.1016/j.msea.2024.146838 |
| 通讯作者 | Guo, Xinpeng(xg919@uowmail.edu.au) ; Xue, Peng(pxue@imr.ac.cn) ; Guo, Xuming(guoxuming@sau.edu.cn) |
| 英文摘要 | In this paper, the effects of cyclic deep cryogenic treatment (CDCT) on the mechanical properties and the precipitated phases evolution of 7B55 aluminum alloy produced by wire arc directed energy deposition (WADED) were systematically investigated. The findings revealed that, under both T6 and CDCT conditions, the microstructure of the 7B55 aluminum alloy exhibited fine-equiaxed grains. Under the T6 condition, the precipitated phases within the grains were primarily composed of clustered GP zones and eta ' phases. Meanwhile, the eta phases were continuously distributed along the grain boundaries. Upon subjecting the material to three cycles of CDCT, a noticeable reduction in the number of GP zones within the grains was observed. Simultaneously, there was a substantial increase in the number of eta ' phases, accompanied by the occurrence of dislocation lines. The distribution of eta phases along the grain boundary transitioned to an interrupted pattern. Under the CDCT-Cycle 3 (CDCT-C3) condition, the ultimate tensile strength (UTS), yield strength (YS), and elongation (EL) achieved 658.6 +/- 4.5 MPa, 624.2 +/- 5.2 MPa, and 8.42 +/- 0.18 %, respectively. However, with the progression to four cycles of CDCT, the GP zones within the grains disappeared and the number of eta ' phases started to decrease with the formation of a large number of eta phases. The eta phase along the grain boundary continuously grew by merging and absorbing solute atoms from the Al matrix near the grain boundaries. This led to the formation of coarsen and interrupted eta phases and the Precipitate-Free Zone (PFZ) along the grain boundaries. Subsequently, the mechanical properties experienced a substantial decrease after the CDCT-Cycle 4 (CDCT-C4). |
| 资助项目 | Regional Innovation and Develop- ment Joint Fund of the National Natural Science Foundation of China[U23A20538] |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001259744100001 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | Regional Innovation and Develop- ment Joint Fund of the National Natural Science Foundation of China |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Guo, Xinpeng; Xue, Peng; Guo, Xuming |
| 作者单位 | 1.Shenyang Aerosp Univ, Sch Mat Sci & Engn, Shenyang 110136, Peoples R China 2.Univ Wollongong, Sch Mech Mat Mechatron & Biomed Engn, Wollongong, NSW 2522, Australia 3.Chinese Acad Sci, Inst Met Res, Shi changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hao, Shuai,Guo, Xinpeng,Cui, Jiayuan,et al. Enhancing the mechanical properties of wire arc directed energy deposition Al-Zn-Mg-Cu aluminum alloy through cyclic deep cryogenic treatment[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2024,909:12. |
| APA | Hao, Shuai,Guo, Xinpeng,Cui, Jiayuan,Xue, Peng,Xu, Rongzheng,&Guo, Xuming.(2024).Enhancing the mechanical properties of wire arc directed energy deposition Al-Zn-Mg-Cu aluminum alloy through cyclic deep cryogenic treatment.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,909,12. |
| MLA | Hao, Shuai,et al."Enhancing the mechanical properties of wire arc directed energy deposition Al-Zn-Mg-Cu aluminum alloy through cyclic deep cryogenic treatment".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 909(2024):12. |
入库方式： OAI收割
来源：金属研究所
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