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Processing of 2198 Al-Li Alloy: Melting, Rolling and Heat Treatment
Zhao Tianzhang1; Jin Long1; Gao Tiejun1; Liu Chunzhong1; Xu Yong2; Zhang Shihong2
Corresponding AuthorZhao Tianzhang(tzzhao@alum.imr.ac.cn)
2019-07-01
Source PublicationRARE METAL MATERIALS AND ENGINEERING
ISSN1002-185X
Volume48Issue:7Pages:2305-2309
AbstractAl-Li alloy is widely used in the aerospace field, due to its high specific strength and high specific modulus. In the present paper, the processing of 2198 alloy was investigated and 2198 alloy sheet with excellent mechanical properties was successfully manufactured, which could be helpful to the industrial production of 2198 Al-Li alloy. The ingot was melted and cast in a vacuum induction melting (VIM) furnace. During the followed homogenization, the as-cast microstructure vanished completely. The ingot was rolled to sheet with 2 mm in thickness, via multi-pass hot-rolling. Then, the solution, water quenching, pre-deformation, natural aging and artificial aging were carried out. The tensile strength of the final 2198 Al-Li alloy sheet in the rolling direction is 486 MPa. The precipitate T1 generated in the artificial aging can not only increase the strength obviously, but also decrease the anisotropy of 2198 Al-Li alloy sheet.
KeywordAl-Li alloy melting rolling heat treatment
Indexed BySCI
Language英语
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000480493400038
PublisherNORTHWEST INST NONFERROUS METAL RESEARCH
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/134964
Collection中国科学院金属研究所
Corresponding AuthorZhao Tianzhang
Affiliation1.Shenyang Aerosp Univ, Shenyang 110136, Liaoning, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
Recommended Citation
GB/T 7714
Zhao Tianzhang,Jin Long,Gao Tiejun,et al. Processing of 2198 Al-Li Alloy: Melting, Rolling and Heat Treatment[J]. RARE METAL MATERIALS AND ENGINEERING,2019,48(7):2305-2309.
APA Zhao Tianzhang,Jin Long,Gao Tiejun,Liu Chunzhong,Xu Yong,&Zhang Shihong.(2019).Processing of 2198 Al-Li Alloy: Melting, Rolling and Heat Treatment.RARE METAL MATERIALS AND ENGINEERING,48(7),2305-2309.
MLA Zhao Tianzhang,et al."Processing of 2198 Al-Li Alloy: Melting, Rolling and Heat Treatment".RARE METAL MATERIALS AND ENGINEERING 48.7(2019):2305-2309.
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