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Effect of ambient pressure on bead shape, microstructure and corrosion behavior of 4043 Al alloy fabricated by laser coaxial wire feeding additive manufacturing in vacuum environment

文献类型：期刊论文

作者Ding, Xueping1,2; Li, Daoyuan2; Zhang, Qi2; Ma, Honglin2; Yang, Jie2; Fan, Shuqian2
刊名OPTICS AND LASER TECHNOLOGY
出版日期2022-09-01
卷号153页码:9
ISSN号0030-3992
关键词Laser additive manufacturing 4043 Al alloy Microstructure Corrosion behavior Vacuum
DOI10.1016/j.optlastec.2022.108242
通讯作者Fan, Shuqian(fansq@cigit.ac.cn)
英文摘要4043 Al alloy was fabricated by laser coaxial wire feeding additive manufacturing (LWAM) technique in vacuum environment. The effect of ambient pressure (1 Pa, 10 Pa, 50 Pa, 120 Pa) on the bead shape, microstructure and corrosion behavior was investigated. Compared the specimen fabricated at 1 Pa and 120 Pa, results showed that with the decrease of ambient pressure, the wettability became better. It was suggested that for obtaining good forming, the LWAM processing was conducted at lower ambient pressure. The microstructure was cellular consisting of primary Al-rich phase surrounded by Si phase at the cellular boundaries. With the increase of ambient pressure, the morphology of Si network became partially broken and less connected. In addition, it was found that with the decrease of ambient pressure (compared 1 Pa and 120 Pa), the corrosion resistance was improved both in H2SO4 and NaCl electrolyte. This was mainly attributed to the partially broken and less connected Si network and more porosities at 120 Pa.
资助项目Natural Science Foundation Project of Chongqing Science and Technology Commission[cstc2020jcyj-msxmX0505] ; Chongqing University of Technology[2019ZD11] ; Scientific and Technological Research Program of Chongqing Municipal Education Commission[KJQN202101148]
WOS研究方向Optics ; Physics
语种英语
出版者ELSEVIER SCI LTD
WOS记录号WOS:000799354000002
源URL[http://119.78.100.138/handle/2HOD01W0/16227]  
专题中国科学院重庆绿色智能技术研究院
通讯作者Fan, Shuqian
作者单位1.Chongqing Univ Technol, Sch Mat Sci & Engn, Chongqing 400054, Peoples R China
2.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing Key Lab Addit Mfg Technol & Syst, Chongqing 400714, Peoples R China
推荐引用方式
GB/T 7714		 Ding, Xueping,Li, Daoyuan,Zhang, Qi,et al. Effect of ambient pressure on bead shape, microstructure and corrosion behavior of 4043 Al alloy fabricated by laser coaxial wire feeding additive manufacturing in vacuum environment[J]. OPTICS AND LASER TECHNOLOGY,2022,153:9.
APA Ding, Xueping,Li, Daoyuan,Zhang, Qi,Ma, Honglin,Yang, Jie,&Fan, Shuqian.(2022).Effect of ambient pressure on bead shape, microstructure and corrosion behavior of 4043 Al alloy fabricated by laser coaxial wire feeding additive manufacturing in vacuum environment.OPTICS AND LASER TECHNOLOGY,153,9.
MLA Ding, Xueping,et al."Effect of ambient pressure on bead shape, microstructure and corrosion behavior of 4043 Al alloy fabricated by laser coaxial wire feeding additive manufacturing in vacuum environment".OPTICS AND LASER TECHNOLOGY 153(2022):9.

入库方式： OAI收割

来源：重庆绿色智能技术研究院

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