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Distribution of the microalloying element Cu in B4C-reinforced 6061Al composites
Zhou, Y. T.; Zan, Y. N.; Zheng, S. J.; Wang, Q. Z.; Xiao, B. L.; Ma, X. L.; Ma, Z. Y.; Ma, XL (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China.; Wang, QZ (reprint author), Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China.; Ma, XL (reprint author), Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Gansu, Peoples R China.
2017-12-25
Source PublicationELSEVIER SCIENCE SA
ISSN0925-8388
Volume728Pages:112-117
AbstractCu is an important microalloying element in Al-Mg-Si (6xxx series) alloys, but its role in B4C-reinforced Al-Mg-Si composites is rarely known. In this work, using the state-of-the- art Cs-corrected transmission electron microscopy (TEM), the Cu-related precipitation in a B4C/6061 Al composite fabricated at different temperatures is revealed at an atomic level. In the composite hot-pressed at 560 degrees C, Q phase is the main Cu-contained precipitates. When the pressing temperature increases to 620 degrees C, the chemical reactions between B4C reinforcements and the alloy matrix generate Al3BC and MgB2. Moreover, Cu is found to segregate at the interfaces between precipitates and the matrix, which is assumed to increase the nucleation of the reaction products. (C) 2017 Elsevier B.V. All rights reserved.; Cu is an important microalloying element in Al-Mg-Si (6xxx series) alloys, but its role in B4C-reinforced Al-Mg-Si composites is rarely known. In this work, using the state-of-the- art Cs-corrected transmission electron microscopy (TEM), the Cu-related precipitation in a B4C/6061 Al composite fabricated at different temperatures is revealed at an atomic level. In the composite hot-pressed at 560 degrees C, Q phase is the main Cu-contained precipitates. When the pressing temperature increases to 620 degrees C, the chemical reactions between B4C reinforcements and the alloy matrix generate Al3BC and MgB2. Moreover, Cu is found to segregate at the interfaces between precipitates and the matrix, which is assumed to increase the nucleation of the reaction products. (C) 2017 Elsevier B.V. All rights reserved.
description.department[zhou, y. t. ; zan, y. n. ; zheng, s. j. ; xiao, b. l. ; ma, x. l. ; ma, z. y.] chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, liaoning, peoples r china ; [wang, q. z.] chinese acad sci, inst met res, cas key lab nucl mat & safety assessment, 72 wenhua rd, shenyang 110016, liaoning, peoples r china ; [ma, x. l.] lanzhou univ technol, sch mat sci & engn, lanzhou 730050, gansu, peoples r china
KeywordAluminum Matrix Composite Boron Carbide Electron Microscopy Microalloying Interface
Subject AreaChemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
Funding OrganizationNational Natural Science Foundation of China [U1508216, 51501195, 51671191]; Innovation Fund of IMR [2017-PY10]
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/78925
Collection中国科学院金属研究所
Corresponding AuthorMa, XL (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China.; Wang, QZ (reprint author), Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China.; Ma, XL (reprint author), Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Gansu, Peoples R China.
Recommended Citation
GB/T 7714
Zhou, Y. T.,Zan, Y. N.,Zheng, S. J.,et al. Distribution of the microalloying element Cu in B4C-reinforced 6061Al composites[J]. ELSEVIER SCIENCE SA,2017,728:112-117.
APA Zhou, Y. T..,Zan, Y. N..,Zheng, S. J..,Wang, Q. Z..,Xiao, B. L..,...&Ma, XL .(2017).Distribution of the microalloying element Cu in B4C-reinforced 6061Al composites.ELSEVIER SCIENCE SA,728,112-117.
MLA Zhou, Y. T.,et al."Distribution of the microalloying element Cu in B4C-reinforced 6061Al composites".ELSEVIER SCIENCE SA 728(2017):112-117.
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