IMR OpenIR
Effect of Particle Size on Mechanical Properties and Fracture Behaviors of Age-Hardening SiC/Al-Zn-Mg-Cu Composites
Ma, Guonan1,2; Wang, Dong1; Xiao, Bolv1; Ma, Zongyi1
Corresponding AuthorWang, Dong(dongwang@imr.ac.cn)
2021-06-01
Source PublicationACTA METALLURGICA SINICA-ENGLISH LETTERS
ISSN1006-7191
Pages13
Abstract15 vol.% SiC/Al-6.5Zn-2.8 Mg-1.7Cu (wt%) composites with varying particle sizes (3.5, 7.0, 14 and 20 mu m), i.e., C-3.5, C-7.0, C-14, and C-20, respectively, were fabricated by powder metallurgy (PM) method and subjected to microstructural examination. The effect of particle size on mechanical properties and fracture behaviors of the T6-treated composites was revealed and analyzed in detail. Element distribution and precipitates variations in the composites with varying particle sizes were emphatically considered. Results indicated that both tensile strength and plasticity of the T6-treated composites increased first and then decreased with particle size decreasing. The C-7.0 composite simultaneously exhibited the highest ultimate tensile strength (UTS) of 686 MPa and best elongation (El.) of 3.1%. The smaller-sized SiC particle would introduce more oxide impurities, which would react with the alloying element in the matrix to cause Mg segregation and depletion. According to strengthening mechanism analysis, the weakening of precipitation strengthening in the T6-treated C-3.5 composite was the main cause of the lower tensile strength. Additionally, the larger SiC particle, the more likely to fracture, especially in the composites with high yield strength. For the T6-treated C-20 composites, more than 75% SiC particles were broken up, resulting in the lowest plasticity. As decreasing particle size, the fracture behaviors of the T6-treated composites would change from particle fracture to matrix alloy fracture gradually.
KeywordMetal matrix composites Mechanical properties Particle size Fracture behaviors Strengthening mechanisms
Funding OrganizationNational Key R & D Program of China ; National Natural Science Foundation of China
DOI10.1007/s40195-021-01254-w
Indexed BySCI
Language英语
Funding ProjectNational Key R & D Program of China[2017YFB0703104] ; National Natural Science Foundation of China[51771193] ; National Natural Science Foundation of China[51931009]
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:000656829500001
PublisherCHINESE ACAD SCIENCES, INST METAL RESEARCH
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/160304
Collection中国科学院金属研究所
Corresponding AuthorWang, Dong
Affiliation1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Ma, Guonan,Wang, Dong,Xiao, Bolv,et al. Effect of Particle Size on Mechanical Properties and Fracture Behaviors of Age-Hardening SiC/Al-Zn-Mg-Cu Composites[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2021:13.
APA Ma, Guonan,Wang, Dong,Xiao, Bolv,&Ma, Zongyi.(2021).Effect of Particle Size on Mechanical Properties and Fracture Behaviors of Age-Hardening SiC/Al-Zn-Mg-Cu Composites.ACTA METALLURGICA SINICA-ENGLISH LETTERS,13.
MLA Ma, Guonan,et al."Effect of Particle Size on Mechanical Properties and Fracture Behaviors of Age-Hardening SiC/Al-Zn-Mg-Cu Composites".ACTA METALLURGICA SINICA-ENGLISH LETTERS (2021):13.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Ma, Guonan]'s Articles
[Wang, Dong]'s Articles
[Xiao, Bolv]'s Articles
Baidu academic
Similar articles in Baidu academic
[Ma, Guonan]'s Articles
[Wang, Dong]'s Articles
[Xiao, Bolv]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Ma, Guonan]'s Articles
[Wang, Dong]'s Articles
[Xiao, Bolv]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.