Enhancing high-temperature strength of (B4C+Al2O3)/Al designed for neutron absorbing materials by constructing lamellar structure

doi:10.1016/j.compositesb.2019.107674

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	Enhancing high-temperature strength of (B4C+Al2O3)/Al designed for neutron absorbing materials by constructing lamellar structure
	Zan, Y. N.1,2; Zhou, Y. T.1; Zhao, H.1; Liu, Z. Y.1; Wang, Q. Z.3; Wang, D.1; Wang, W. G.1; Xiao, B. L.1; Ma, Z. Y.1
刊名	COMPOSITES PART B-ENGINEERING
	2020-02-15
卷号	183 页码:11
关键词	Metal-matrix composites Neutron absorbing materials Lamellar structure Mechanical properties High-temperature strength
ISSN号	1359-8368
DOI	10.1016/j.compositesb.2019.107674
通讯作者	Wang, Q. Z.(qzhwang@imr.ac.cn) ; Ma, Z. Y.(zyma@imr.ac.cn)
英文摘要	Aiming at developing new generation of high-temperature neutron absorbing materials for both structural and functional usages, (B4C + Al2O3)/Al composites were fabricated. Hot forging and extruding were carried out to adjust the microstructures of the composites. The forged samples exhibited a lamellar structure with Al2O3 staying at the grain boundaries. In the extruded sample, most Al2O3 entered into the interior of ultrafine-grains. Different strengthening effects of intergranular and intragranular Al2O3 at room and high temperatures were studied. It was verified that Al2O3 distributed at the grain boundaries was more beneficial to enhance the high-temperature strength by strengthening the grain boundaries and preventing dislocations from annihilating, therefore the forged samples were much stronger than the extruded sample at 375 degrees C. The sample forged with a height reduction ratio of 8:1 showed an ultimate strength of 342 MPa at room temperature and an ultimate strength of 96 MPa at 375 degrees C.
资助项目	National Natural Science Foundation of China[U1508216] ; National Natural Science Foundation of China[51771194] ; Youth Innovation Promotion Association CAS[2016179] ; National Key R&D Program of China[2017YFB0703104]
WOS研究方向	Engineering ; Materials Science
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000513295300004
资助机构	National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; National Key R&D Program of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/137578]
专题	金属研究所_中国科学院金属研究所
通讯作者	Wang, Q. Z.; Ma, Z. Y.
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 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 3.Chinese Acad Sci, Key Lab Nucl Mat & Safety Assessment, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Zan, Y. N.,Zhou, Y. T.,Zhao, H.,et al. Enhancing high-temperature strength of (B4C+Al2O3)/Al designed for neutron absorbing materials by constructing lamellar structure[J]. COMPOSITES PART B-ENGINEERING,2020,183:11.
APA	Zan, Y. N..,Zhou, Y. T..,Zhao, H..,Liu, Z. Y..,Wang, Q. Z..,...&Ma, Z. Y..(2020).Enhancing high-temperature strength of (B4C+Al2O3)/Al designed for neutron absorbing materials by constructing lamellar structure.COMPOSITES PART B-ENGINEERING,183,11.
MLA	Zan, Y. N.,et al."Enhancing high-temperature strength of (B4C+Al2O3)/Al designed for neutron absorbing materials by constructing lamellar structure".COMPOSITES PART B-ENGINEERING 183(2020):11.