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High strength SiCp/Al-2Cu-1.2Mg-0.6Si composite with weak natural aging hardening
Zhu, S. Z.1,2; Wang, D.1; Zan, Y. N.1,2; Xiao, B. L.1; Ma, Z. Y.1
Corresponding AuthorWang, D.(dongwang@imr.ac.cn) ; Xiao, B. L.(blxiao@imr.ac.cn)
2021-06-01
Source PublicationCOMPOSITES COMMUNICATIONS
ISSN2452-2139
Volume25Pages:6
AbstractThe typical SiCp/Al-Cu-Mg composites have strong natural aging hardening trend, thus decreasing performance for cold working after quenching. The study developed a SiCp/Al-2Cu-1.2Mg-0.6Si (in wt.%) composite with low natural aging strength and high natural aging ductility. Compared to the typical SiCp/2009Al (Al-4Cu-1.2 Mg, in wt%) composite, the SiCp/Al-2Cu-1.2Mg-0.6Si composite had a 73 MPa decrement in yield strength and an increment in uniform elongation from 8.5% to 10.5% after one-week natural aging due to much fewer Cu, whereas the composite exhibited a 33 MPa increment in yield strength after artificial aging. Due to modification of precipitation by Si, finer and equal quantity (volume fraction) of intragranular precipitates formed after artificial aging in the SiCp/Al-2Cu-1.2Mg-0.6Si composite in comparison with the SiCp/2009Al composite. Therefore, higher yield strength after artificial aging could be achieved although Cu content was much lower. The SiCp/Al-2Cu-1.2Mg-0.6Si composite exhibited great potential for application, thereby enriching the classification of SiCp/Al composites.
KeywordAluminum alloys Particulate reinforced composites Natural aging Artificial aging
Funding OrganizationNational Key R&D Program of China ; National Natural Science Foundation of China
DOI10.1016/j.coco.2021.100742
Indexed BySCI
Language英语
Funding ProjectNational Key R&D Program of China[2017YFB0703104] ; National Natural Science Foundation of China[51671191]
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Composites
WOS IDWOS:000663431800002
PublisherELSEVIER SCI LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/160508
Collection中国科学院金属研究所
Corresponding AuthorWang, D.; Xiao, B. L.
Affiliation1.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, 72 Wenhua Rd, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Zhu, S. Z.,Wang, D.,Zan, Y. N.,et al. High strength SiCp/Al-2Cu-1.2Mg-0.6Si composite with weak natural aging hardening[J]. COMPOSITES COMMUNICATIONS,2021,25:6.
APA Zhu, S. Z.,Wang, D.,Zan, Y. N.,Xiao, B. L.,&Ma, Z. Y..(2021).High strength SiCp/Al-2Cu-1.2Mg-0.6Si composite with weak natural aging hardening.COMPOSITES COMMUNICATIONS,25,6.
MLA Zhu, S. Z.,et al."High strength SiCp/Al-2Cu-1.2Mg-0.6Si composite with weak natural aging hardening".COMPOSITES COMMUNICATIONS 25(2021):6.
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