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Microstructure and superior quenching sensitivity of a novel Sc, Zr alloyed Al-Zn-Mg-Cu alloy
Huang, Jiwu1; Xu, Chenglong1; Liu, Shichao1; Jiang, Fuqing1,2
Corresponding AuthorJiang, Fuqing(fqjiang_imr@163.com)
2022-02-15
Source PublicationMATERIALS LETTERS
ISSN0167-577X
Volume309Pages:4
AbstractThis paper studies a novel Al-Zn-Mg-Cu-Mn-Sc-Zr alloy that exhibits outstanding quenching sensitivity with a quench-hardening depth of more than 150 mm. Jominy end quenching allows the alloy to obtain different quenching rates. The Brinell hardness of the aged alloy with a quenching rate of 27 degrees C/s is 154 HB; when the quenching rate drops to 1.5 degrees C/s, its hardness value loses about 8%, which is 142 HB. The quenching-induced equilibrium precipitates heterogeneously precipitated at the grain boundary and the incoherent phase interfaces (E phase, Al-6(Mn, Fe) phase), but no heterogeneous precipitates are observed along the coherent L1(2)-Al-3(Sc, Zr) particles. After artificial aging, densely distributed nano-scaled atomic clusters and G.P zones, as well as grain boundary precipitation free zones (PFZs) were observed.
KeywordMetals and alloys Quenching sensitivity Microstructure Heterogeneous precipitation
Funding OrganizationKey-Area Research and Development Program of Guangdong Province
DOI10.1016/j.matlet.2021.131422
Indexed BySCI
Language英语
Funding ProjectKey-Area Research and Development Program of Guangdong Province[2020B010186002]
WOS Research AreaMaterials Science ; Physics
WOS SubjectMaterials Science, Multidisciplinary ; Physics, Applied
WOS IDWOS:000736654600001
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/173767
Collection中国科学院金属研究所
Corresponding AuthorJiang, Fuqing
Affiliation1.Cent South Univ, Sch Mat Sci & Engn, Changsha 410083, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Huang, Jiwu,Xu, Chenglong,Liu, Shichao,et al. Microstructure and superior quenching sensitivity of a novel Sc, Zr alloyed Al-Zn-Mg-Cu alloy[J]. MATERIALS LETTERS,2022,309:4.
APA Huang, Jiwu,Xu, Chenglong,Liu, Shichao,&Jiang, Fuqing.(2022).Microstructure and superior quenching sensitivity of a novel Sc, Zr alloyed Al-Zn-Mg-Cu alloy.MATERIALS LETTERS,309,4.
MLA Huang, Jiwu,et al."Microstructure and superior quenching sensitivity of a novel Sc, Zr alloyed Al-Zn-Mg-Cu alloy".MATERIALS LETTERS 309(2022):4.
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