Impact of Cryogenic Cycling on the Macro and Microscopic Residual Stress in SiC/Al Composites

doi:10.11900/0412.1961.2024.00059

IMR OpenIR

	Impact of Cryogenic Cycling on the Macro and Microscopic Residual Stress in SiC/Al Composites
	Gu Liming 1,2; Feng Xiaoming 1,2; Yu Zhao 1,2; Zhang Junfan 1; Liu Zhenyu 1; He Lunhua 3,4,5; Lu Huaile 3,6; Li Xiaohu 3; Wang Chen 3; Zhang Xiaodong 3; Xiao Bolv 1; Ma Zongyi 1
通讯作者	Zhang Junfan(jfzhang@imr.ac.cn)
	2024-08-11
发表期刊	ACTA METALLURGICA SINICA
ISSN	0412-1961
卷号	60 期号:8 页码:1031-1042
摘要	Aluminum-based silicon carbide (SiC/Al) composites are widely used in the field of precision optics by virtue of their high specific modulus, high specific strength, and excellent dimensional stability. The dimensional stability of these composites is primarily influenced by macroscopic and microscopic residual stresses induced during the heat treatment process. This study employed neutron diffraction and finite element method (FEM) to investigate the impact of cryogenic cycle treatment on both macroscopic and microscopic residual stresses within the 35%SiC/6092Al composite material in the annealed state. The results of this study will clarify the methods and effects of reducing the residual stress and improving the dimensional stability of precision optical parts. The study focused on the influencing factors such as the number of cryogenic cycles, sample size, reinforcement particle size, and temperature difference of cryogenic cycles. The results show that the deep cryogenic cycles can remarkably reduce the internal stress of SiC/Al composites in the annealed state; as the number of cryogenic cycles increases, the internal stress reduction effect of a single cycle weakens. The cryogenic cycles primarily induce plastic strain in the matrix around particles, thereby influencing the internal stress between the particles and the surrounding matrix. No significant relationship is found between cryogenic cycles and external dimensions. Moreover, the cryogenic cycle barely increases the macroscopic stress of the annealed sample. For composites with equal volume fraction of SiC particles, the reduction in the internal stress after multiple cryogenic cycles is the same regardless of the SiC size. Moreover, the effect of multiple cryogenic cycles on the reduction in internal stress has little to do with the cryogenic cycle temperature difference. Cryogenic cycles at temperatures ranges of 100 similar to-196 degrees C and 200 similar to-196 degrees C exhibit almost identical alterations in internal stress.
关键词	cryogenic cycle neutron diffraction residual stress finite element method representative volume element
DOI	10.11900/0412.1961.2024.00059
收录类别	SCI
语种	英语
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001281277300003
出版者	SCIENCE PRESS
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/189603
专题	中国科学院金属研究所
通讯作者	Zhang Junfan
作者单位	1.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Spallat Neutron Source Sci Ctr, Dongguan 523803, Peoples R China 4.Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Inst Phys, Beijing 100190, Peoples R China 5.Songshan Lake Mat Lab, Dongguan 523808, Peoples R China 6.Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Gu Liming,Feng Xiaoming,Yu Zhao,et al. Impact of Cryogenic Cycling on the Macro and Microscopic Residual Stress in SiC/Al Composites[J]. ACTA METALLURGICA SINICA,2024,60(8):1031-1042.
APA	Gu Liming.,Feng Xiaoming.,Yu Zhao.,Zhang Junfan.,Liu Zhenyu.,...&Ma Zongyi.(2024).Impact of Cryogenic Cycling on the Macro and Microscopic Residual Stress in SiC/Al Composites.ACTA METALLURGICA SINICA,60(8),1031-1042.
MLA	Gu Liming,et al."Impact of Cryogenic Cycling on the Macro and Microscopic Residual Stress in SiC/Al Composites".ACTA METALLURGICA SINICA 60.8(2024):1031-1042.