等温复合锻造工艺对2A14铝合金轮毂组织与力学性能的影响

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (989 KB) HTML (0 KB)
Export: BibTeX | EndNote (RIS)

Abstract The 2A14 aluminum alloy wheel hub forging stock was prepared by isothermal compound forging (isothermal multi-direction forging + isothermal die forging) followed by solid solution and aging treatment. The effects of isothermal compound forging on microstructure and mechanical properties of the alloy were investigated by optical microscopy, scanning electron microscopy (SEM) and mechanical property testing. The results show that there are dynamic recovery and dynamic recrystallization in isothermal forging process. With increasing the die forging temperature, the softening mechanism of the alloy gradually changes from dynamic recovery to dynamic recrystallization. The mechanical properties can be improved by increasing isothermal multi-direction forging passes. Under the same isothermal multi-direction forging, the mechanical properties of the alloy increase first and then decrease with increasing the isothermal die forging temperature. The alloy treated by isothermal multi-direction forging with 6 passes at 450 ℃ and isothermal die forging at 460 ℃ has the best mechanical properties with the tensile strength and the elongation of 491 MPa and 12%, respectively.

Key words： 2A14 aluminium alloy isothermal compound forging dynamic recovery dynamic recrystallization microstructure mechanical property

Received: 13 July 2018 Published: 12 July 2019

ZTFLH:

TG319

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	YU Yongxin
	XIAO Daihong
	ZHOU Pengfei
	HUANG Lanpin
	LIU Wengsheng

Cite this article:

YU Yongxin,XIAO Daihong,ZHOU Pengfei, et al. Effects of isothermal compound forging on microstructure and mechanical properties of 2A14 aluminum alloy wheel hub[J]. Materials Science and Engineering of Powder Metallurgy, 2019, 24(1): 45-51.

URL:

http://pmbjb.csu.edu.cn/EN/ OR http://pmbjb.csu.edu.cn/EN/Y2019/V24/I1/45

[1] 《飞机设计手册》总编委会. 飞机设计手册.第14册, 起飞着陆系统设计[M]. 北京: 航空工业出版社, 2002: 1-28.
Chief Editor of the Aircraft Design Manual. Aircraft Design Manua. Fourteenth Volumes, Takeoff Landing System Design [M]. Beijing: Aviation Industry Press, 2002: 1-28.
[2] 郭灵, 王淑云, 林海. 先进航空材料及构件锻压成形技术[M]. 北京: 国防工业出版社, 2011: 6-16.
GUO Ling, WANG Shuyun, LIN Hai.Foring Techniques of Advanced Aeronautical Materials and Components[M]. Beijing: National Defence Industry Press, 2011: 6-16.
[3] VALIEV R Z, ESTRIN Y, HORITA Z, et al.Producing bulk ultrafine-grained materials by severe plastic deformation[J]. Journal of Plasticity Engineering, 2010, 58(4): 33-39.
[4] DESRAYAUD C, RINGEVAL S, GIRARD S, et al.A novel high straining process for bulk materials—The development of a multipass forging system by compression along three axes[J]. Journal of Materials Processing Tech, 2006, 172(1): 152-158.
[5] 刘静安, 张宏伟, 谢水生. 铝合金锻造技术[M]. 北京: 冶金工业出版社, 2012: 46-161.
LIU Jingan, Zhang Hongwei, Xie Shuisheng.Forging Technology of Aluminum Alloy[M]. Beijing: Metallurgical Indusry Press, 2012: 46-161.
[6] 潘复生, 张丁非. 铝合金及应用[M]. 北京: 化学工业出版社, 2006: 1-60.
PAN Fusheng, ZHANG Dingfei.Aluminum Alloy and Application[M]. Beijing: Chemical Indusry Press, 2006: 1-60.
[7] 赵刚, 李洪晓, 刘春明, 等. 2014铝合金的形变时效处理[J]. 东北大学学报: 自然科学版, 2001, 22(6): 664-667.
ZHAO Gang, LI Hongxiao, LIU Chunming, et al.Thermomechanical aging of 2014 aluminum alloy[J]. Journal of Northeastern University: Natural Science, 2001, 22(6): 664-667.
[8] 徐崇义, 李念奎. 2XXX系铝合金强韧化的研究与发展[J]. 轻合金加工技术, 2005, 33(8): 13-17.
XUE Chongyi, LI Niankui.Development and research of strengthening and toughening of 2XXX aluminium alloy[J]. Light Alloy Fabrication Technology, 2005, 33(8): 13-17.
[9] 宋仁国. 高强度铝合金的研究现状及发展趋势[J]. 材料导报, 2000, 14(1): 20-21.
SONG Renguo.Current status and trends in high strength aluminum alloy research[J]. Materials Review, 2000, 14(1): 20-21.
[10] 刘文胜, 刘东亮, 马运柱, 等. 变形温度对2A14铝合金显微组织和力学性能的影响[J]. 中国有色金属学报, 2015, 25(2): 308-314.
LIU Wensheng, LIU Dongliang, MA Yunzhu, et al.Effects of deformation temperature on microstructure and mechanical properties of 2A14 aluminum alloy[J]. The Chinese Journal of Nonferrous Metals, 2015, 25(2): 308-314.
[11] WANG M, HUANG L, LIU W, et al.Influence of cumulative strain on microstructure and mechanical properties of multi-directional forged 2A14 aluminum alloy[J]. Materials Science & Engineering A, 2016, 674: 40-51.
[12] JOSHI A, KUMAR N, YOGESHA K K, et al.Mechanical properties and microstructural evolution in Al 2014 alloy processed through multidirectional cryoforging[J]. Journal of Materials Engineering & Performance, 2016, 25(7): 3031-3045.
[13] 朱庆丰, 王嘉, 左玉波, 等. 多向锻造道次对5182铝合金变形组织的影响[J]. 东北大学学报: 自然科学版, 2015, 36(11): 1572-1575.
ZHU Qingfeng, WANG Jia, ZUO Yubo, et al.Effects of forging pass on the structure of 5182 aluminum alloy during multi- direction forging process[J]. Journal of Northeastern University: Natural Science, 2015, 36(11): 1572-1575.
[14] 张宏伟, 牛占先, 王秀华, 等. 提高2A14铝合金轮毂锻件力学性能的锻造工艺[J]. 轻合金加工技术, 2006, 34(5): 31-34.
ZHANG Hongwei, NIU Zhanxian, WANG Xiuhua, et al.Forging technology of improving mechamical properties of 2A14 aluminium alloy die-forging for whell[J]. Light Alloy Fabrication Technology, 2006, 34(5): 31-34.
[15] 汪明. 机轮轮毂用2A14铝合金锻造变形行为及其组织性能研究[D]. 长沙: 中南大学, 2017.
WANG Ming.Study of forging deformation behavior and microstructure-properties of 2A14 aluminum alloy using in wheel hub[D]. Changsha: Central South University, 2017.
[16] MOGHANAKI S K, KAZEMINEZHAD M, LOGE R.Recrystallization behavior of multi-directionally forged over- aged and solution treated Al-Cu-Mg alloy during non-isothermal annealing[J]. Materials and Design, 2017, 132: 250-256.
[17] JIN N, ZHANG H, HAN Y, et al.Hot deformation behavior of 7150 aluminum alloy during compression at elevated temperature[J]. Materials Characterization, 2011, 60(6): 530-536.
[18] JIANG M G, YAN H, CHEN R S.Twinning, recrystallization and texture development during multi-directional impact forging in an AZ61 Mg alloy[J]. Journal of Alloys & Compounds, 2015, 650: 399-409.