| METALS AND METAL MATRIX COMPOSITES |
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| Effect of Cold Rolling Deformation on Aging Precipitation Behavior and Mechanical Properties of 2A14 Aluminum Alloy High Cylinder Ring |
| HU Bin1,2, YI Youping1,2,3, HUANG Shiquan2,3, HE Hailin1,2, WANG Bingxiang2,3, GUO Wanfu1,2
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1 Light Alloy Research Institute, Central South University, Changsha 410083
2 State Key Laboratory of High Performance Complex Manufacturing, Central South University, Changsha 410083
3 School of Mechanical and Electrical Engineering, Central South University, Changsha 410083 |
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Abstract In order to find out the influence of cold rolling process on the microstructure and properties of 2A14 aluminum alloy high cylinder ring, this paper carried out the cold rolling deformation process experiment of aluminum alloy deformation samples. The effects of cold rolling deformation on aging precipitation behavior and mechanical properties of 2A14 aluminum alloy high cylinder ring were studied by stretching, OM, SEM, DSC and TEM. The results showed that the dislocation density of the alloy increases after cold rolling deformation, which was beneficial to the nucleation, precipitation and growth of the θ′ phase. The precipitation of θ′ phase reduced the concentration of copper atoms and inhibits the precipitation of Q′ phase. When the cold rolling reduction was 4%, a large number of fine-dispersed θ′ phase and Q′ phases were precipitated in the matrix,and the material had the best comprehensive performance. The tensile strength, yield strength and elongation were 490.3 MPa, 428 MPa and 13.76% respectively.
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Published: 28 October 2019
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| Fund:This work was financially supported by the National Natural Science Foundation of China (51875583), the State Key Laboratory Foundation of China (ZZYJKT2018-03), Postgraduate Research Innovation Project of Central South University(2018zzts482). |
| About author:: Bin Hu, born in 1992, majored in mechanical engineering from Light Alloy Research Institute of Central South University. Mainly engaged in aluminum alloy processing and heat treatment process research;Youping Yi is a professor at the School of Mechanical and Electrical Engineering of Central South University and a doctoral tutor,Joined the College of Mechanical and Electrical Engineering of Central South University in 2004,mainly engaged in the research of aerospace and aerospace light alloy component forming processes and molds, heat treatment processes and equipment. He has published 64 papers, 39 SCI and EI searches, authorized 4 national invention patents and 2 software copyrights. |
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Dhal A, Panigrahi S K, Shunmugam M S. Journal of Alloys & Compounds, 2015,649,229.2 Sun J B, Wang X D, Wang S Q, et al. The Chinese Journal of Nonferrous Metals, 2014(10),2452(in Chinese).孙进宝, 王旭东, 王胜强,等. 中国有色金属学报, 2014(10),2452.3 An L H, Cai Y, Liu W, et al. Transactions of Nonferrous Metals Society of China, 2012, 22(S2),s370.4 Wang H, Yi Y, Huang S. Journal of Alloys & Compounds, 2016, 685,941.5 Gao C, Luan Y, Yu J C, et al. Transactions of Nonferrous Metals Society of China, 2014, 24(7),2196.6 Dong Y, Ye L Y, Sun D X, et al. The Chinese Journal of Nonferrous Metals, 2017(12), 2434(in Chinese).董宇, 叶凌英, 孙大翔,等. 中国有色金属学报, 2017(12),2434.7 Gu Y, Chen J H, Liu C H, et al. Acta Metallurgica Sinica, 2015, 51(11),1400(in Chinese).顾媛, 陈江华, 刘春辉,等. 金属学报, 2015, 51(11),1400.8 Li H Z, Liu R M, Liang X P, et al. Transactions of Nonferrous Metals Society of China, 2016, 26(6),1482.9 Zhang X M, Jia Y Z, Liu L,et al. Journal of Central South University (Science and Technology), 2011, 42(1),46(in Chinese).张新明, 贾寓真, 刘玲, 等. 中南大学学报(自然科学版), 2011, 42(1),46.10 Li H, Wang Z X, Zheng Z Q. Rare Metal Materials and Engineering, 2006, 35(8),1276(in Chinese).李海, 王芝秀, 郑子樵. 稀有金属材料与工程, 2006, 35(8),1276.11 Paola B, Gariboldi E, Vimercati G. Journal of Thermal Analysis and Ca-lorimetry, 2007, 87(1),247.12 Wolverton C. Acta Materialia, 2001, 49(16),3129.13 Chakrabarti D J, Laughlin D E. Progress in Materials Science, 2004, 49(3-4),389.14 Dutta I, Harper C P, Dutta G. Metallurgical & Materials Transactions A, 1994, 25(8),1591.15 Miao W F, Laughlin D E. Metallurgical & Materials Transactions A, 2000, 31(2),361.16 Li H Z, Zhu Z X, Liang X P, et al. Transactions of Nonferrous Metals Society of China, 2017, 27(12),2539.17 Non-Ferrous Metals and Their Heat Treatment writing group. Non-Ferrous Metals and Their Heat Treatment, National Defence Industrial Press, China, 1993(in Chinese).《有色金属及其热处理》编写组. 有色金属及其热处理, 国防工业出版社, 1993.18 Zhang X M, Liu L, Jia Y Z. The Chinese Journal of Nonferrous Metals, 2010, 20(6),1088(in Chinese).张新明, 刘玲, 贾寓真. 中国有色金属学报, 2010, 20(6),1088.
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2019, Vol. 33 
