预拉伸变形对2219铝合金环形件组织与力学性能的影响

doi:10.11896/cldb.18070254

Abstract
Figure/Table
References
Related Citation (15)

Download:

Full Text ( PDF ) (3043KB)
Export: BibTeX | EndNote (RIS)

Abstract Pre-deformation is an effective method to improve the mechanical properties of aging hardened aluminum alloy and its deformation is an important factor to affect mechanical properties. The effects of different pre-tensile deformation amounts (0%, 1%, 3%, 5%, 7%) on the microstructure and mechanical properties of 2219 aluminum alloy ring forgings were investigated by hardness test, scanning electron microscopy (SEM), transmission electron microscopy (TEM) observation and the tensile test at room temperature, to obtain the deformation amount when the mechanical properties of alloy materials were optimized. The results show that pre-tensile deformation can promote the precipitation of aged precipitated phase θ'. With the increase of pre-tensile deformation, the peak aging time is shortened, the hardness and strength increase first and then decrease, and the elongation decreases gradually. When the pre-tensile deformation is 3%, the comprehensive mechanical properties of 2219 aluminum alloy ring forgings are the best, with its tensile strength, yield strength and elongation are 463.5 MPa, 349.5 MPa and 14.31%, respectively.

Key words： 2219 aluminum alloy pre-tensile deformation aging thermo-mechanical treatment mechanical property

Published: 31 July 2019

CLC number:

TG146. 21

Fund:This work was financially supported by the Joint Funds of the National Natural Science Foundation of China (U1637601) and the Free Exploration Project of High Performance Complex Manufacturing National Key Laboratory (zzyjkt2014-02).

About author:: Jie Fang, born in 1991, master of mechanical engineering, Research Institute of Light Alloy of Central South University. Mainly engaged in aluminum alloy processing and cold deformation process research.
Youping Yiis a professor at the School of Mechanical and Electrical Engineering of Central South University and a doctoral tutor, 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.

	Service
	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	FANG Jie
	YI Youping
	HUANG Shiquan
	HE Hailin
	GUO Wanfu

Cite this article:

FANG Jie,YI Youping,HUANG Shiquan, et al. Influence of Pre-tensile Deformation on the Microstructure and Mechanical Properties of 2219 Aluminum Alloy Forgings[J]. Materials Reports, 2019, 33(18): 3062-3066.

URL:

http://www.mater-rep.com/EN/10.11896/cldb.18070254 OR http://www.mater-rep.com/EN/Y2019/V33/I18/3062

[1]	He H, Yi Y, Huang S, et al. Journal of Materials Science & Technology, 2019, 35(1), 55.
[2]	Liu C F. Aeronautical Manufacturing Technology, 2003,46(2), 22(in Chinese).刘春飞.航空制造技术,2003,46(2),22.
[3]	Yao M, Zhang W X, Fu M M, el al. Hot Working Technology, 2017(16),227(in Chinese).姚梦,张文学,付敏敏,等.热加工工艺,2017 (16),227.
[4]	Singh S, Coel D B. Materials Science, 1990, 25,3894.
[5]	Zhao G, LI H X, Liu C M, et al. Journal of Northeastern University, 2001, 22(6),664(in Chinese).赵刚,李洪晓,刘春明,等.东北大学学报, 2001, 22(6),664.
[6]	Pattanaik S, Srinivasan V, Bhatia M L. Scripta Metallurgica,1972,6(3), 191.
[7]	Chung D W, Chaturvedi M C. Advanced Performance Materials, 1981, 41, 27.
[8]	Singh S, Goel D B. Bulletin of Materials Science, 1991,14(1), 35.
[9]	Mazzini S G. Scripta Metallurgica Et Materialia, 1994,31(9), 1127.
[10]	An L H, Cai Y, Liu W, et.al. Science Direct,2012,22(2),370.
[11]	Wang H M, Yi Y Y, Huang S S. Journal of Alloys and Compounds,2016,685, 941.
[12]	Gavriljuk V G, Berns H, Escher C, et al. Material Science Forum, 1999,318-320(1-2),455.
[13]	Yan P, Wang G Q, Li J F. Machinery Design and Manufacture, 2009(3), 99(in Chinese).闫萍,王国庆,李均峰.机械设计与制造,2009(3), 99.
[14]	Wang J H, Yi D Q, Su X P, et al. Special Casting and Nonferrous Alloys, 2007, 27(4),246(in Chinese).王建华,易丹青,苏旭平,等. 特种铸造及有色合金,2007, 27(4),246.
[15]	Fisher J, James J. Advanced Materials and Processes, 2002, 160(9), 43.
[16]	Li H, Wang Z X, Zheng Z Q. Rare Metal Materials and Engineering, 2006(8), 1276(in Chinese).李海,王芝秀,郑子樵.稀有金属材料与工程,2006(8), 1276.
[17]	Li C X, San J C, Xu N, et al. Foundry, 2005,54(8),761(in Chinese).李晨希,伞晶超,徐娜,等. 铸造,2005,54(8),761.
[18]	Huang Y C, Chen P C, Liu Y. Hot Working Technology, 2016, 23(6), 1001(in Chinese).黄元春,陈鹏冲,刘宇.热加工工艺,2016, 23(6), 1001.
[19]	Papazian J M. Metallurgical & Materials Transactions A,1981(12),269.
[20]	Natan M, Chihoski R A. Journal of Materials Science, 1983,18(11), 3288.
[21]	Ma Z, Xu C Y. Influence of cold deformation and aging on microsture and properties of aluminum alloy 2219. Master’s Thesis, Harbin Institute of Technology, China,2014(in Chinese).马征,徐成彦. 冷变形及时效对2219铝合金组织性能的影响规律.硕士学位论文,哈尔滨工业大学, 2014.
[22]	Son S K, Takeda M, Mitome M, et al. Materials Letters, 2005, 59, 629.
[23]	Wei X Y, Zheng Z Q, Pan Z R, et al. Rare Metal Materials & Enginee-ring, 2008, 37, 1996.
[24]	Yoshimura R, Konno T J, Abe E, et al. Acta Materialia, 2003,51, 4251.
[25]	Wang H B, Han J C, Zhang X H, et al. Material Science and Technology, 1998, 9(3),56(in Chinese).王华彬,韩杰才,张幸红,等. 材料科学与工艺,1998, 9(3),56.