Study of the Hot Deformation and Processing Map of 31%B4Cp/6061Al Composites
Zhou Li1; Li Ming1; Wang Quanzhao2; Cui Chao3; Xiao Bolv2; Ma Zongyi2
Corresponding AuthorWang Quanzhao(
AbstractB4Cp/Al composite has the advantages of light weight, good stability, high neutron absorption capacity and excellent mechanical properties, and is increasingly used in nuclear industry for storage and transportation of spent fuels. However, due to the obvious difference in the mechanical properties between the reinforcement and the aluminum matrix, the deformation of B4Cp/Al composite is quite difficult. In this study, the hot compression behavior of 31%B4Cp/6061Al (volume fraction) composite fabricated by powder metallurgy was investigated in the temperature range of 375 similar to 525 degrees C and strain rate range of 0.001 similar to 10 s(-1) with Gleeble-3800 thermal simulator system. Based on the modified dynamic material model (MDMM), the power dissipation efficiency and processing maps were established, the instability zones and stable area of hot deformation were determined, and the microstructure evolution during hot compression were analyzed. The results show that the temperature and strain rate have significant influences on the flow stress of 31%B4Cp/6061Al composite, and the flow stress increases with decreasing temperature or with increasing strain rate. The optimum processing domains for 31%B4Cp/6061Al composite are at temperatures of 480 similar to 525 degrees C with strain rates of 0.01 similar to 0.04 s(-1). However, the processing instability area is mainly concentrated in low temperature and high strain rate, and increases with the increase of strain. During the hot compressing, the microstructure evolution is influenced by hot processing parameters, such as the strain, temperature and strain rate. The higher the strain is, the more serious the grain deformation is. With increasing deformation temperature or decreasing strain rate, the size of the dynamic recrystallization grain in matrix increases obviously.
KeywordB4Cp/6061Al composites hot deformation processing map microstructure
Funding OrganizationNational Natural Science Foundation of China ; Natural Science Foundation of Shandong Province
Indexed BySCI
Funding ProjectNational Natural Science Foundation of China[U1508216] ; National Natural Science Foundation of China[51771194] ; Natural Science Foundation of Shandong Province
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:000550617100011
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Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorWang Quanzhao
Affiliation1.Yantai Univ, Sch Electromech & Vehicle Engn, Yantai 264005, Peoples R China
2.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China
3.Harbin Inst Technol Weihai, Sch Mat Sci & Engn, Weihai 264209, Peoples R China
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GB/T 7714
Zhou Li,Li Ming,Wang Quanzhao,et al. Study of the Hot Deformation and Processing Map of 31%B4Cp/6061Al Composites[J]. ACTA METALLURGICA SINICA,2020,56(8):1155-1164.
APA Zhou Li,Li Ming,Wang Quanzhao,Cui Chao,Xiao Bolv,&Ma Zongyi.(2020).Study of the Hot Deformation and Processing Map of 31%B4Cp/6061Al Composites.ACTA METALLURGICA SINICA,56(8),1155-1164.
MLA Zhou Li,et al."Study of the Hot Deformation and Processing Map of 31%B4Cp/6061Al Composites".ACTA METALLURGICA SINICA 56.8(2020):1155-1164.
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