Fatigue Property Research of Friction Stir Welded Joints for 2219-T6 Aluminum Alloy

SUN Guo-qin; CHEN Ya-jing; CAO Fang-li; NIU Jiang-pei; CHEN Shu-jun

doi:10.11936/bjutxb2015050054

Journal of Beijing University of Technology > 2015 > 41(11): 1670-1674. > DOI: 10.11936/bjutxb2015050054

SUN Guo-qin, CHEN Ya-jing, CAO Fang-li, NIU Jiang-pei, CHEN Shu-jun. Fatigue Property Research of Friction Stir Welded Joints for 2219-T6 Aluminum Alloy[J]. Journal of Beijing University of Technology, 2015, 41(11): 1670-1674. DOI: 10.11936/bjutxb2015050054

Citation:

PDF (3425 KB)

Fatigue Property Research of Friction Stir Welded Joints for 2219-T6 Aluminum Alloy

College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing 100124, China

More Information

Received Date: May 17, 2015
Available Online: January 10, 2023

Graphical Abstract

Abstract

Abstract

Fatigue tests were performed on the friction stir welded joints of 2219-T6 aluminum alloy in order to research the relationship between the locations of fatigue fracture of 2219-T6 aluminum alloy friction stir welded joints and local mechanical properties and microstructure. The fracture locations were mostly in the junction of the nugget and the thermal mechanical affected zones and adjacent areas. Big impurities were found in the subsurface of the location of the crack initiation. The obvious micro-void and the maximum amount of low angle grain boundary were found in the nugget. In order to obtain the local mechanical properties of the welded joints,the numerical simulation under fatigue loading for the welded joints was conducted with ABAQUS software. The result shows that principal strain values in thermomechanical and nugget zones are bigger than that in other zones. It easily initiates the fatigue cracks in these zones than in others.
- friction stir welding,
- welding joint,
- fatigue fracture,
- numerical simulation

FullText(HTML)

References (13)

References

[1]	KHODAVERDIZADEH H,MAHMOUDI A,HEIDARZADEH A,et al.Effect of friction stir welding(FSW)parameters on strain hardening behavior of pure copper joints[J].Materials and Design,2012,35:330-334.
[2]	MINAK G,CESCHINI L,BOROMEI I,et al.Fatigue properties of friction stir welded particulate reinforced aluminium matrix composites[J].International Journal of Fatigue,2010,32:218-226.
[3]	罗传红,彭卫平,郭立杰,等.2219高强铝合金搅拌摩擦焊接头组织和性能分析[J].重庆理工大学学报,2014,28(10):38-41.LUO Chuan-hong,PENG Wei-ping,GUO Li-jie,et al.Performance of aluminum alloy 2219 joints welded by friction stir welding[J].Journal of Chongqing University of Technology,2014,28(10):38-41.(in Chinese)
[4]	陈迎春,刘会杰,冯吉才.2219-O铝合金的搅拌摩擦焊接[J].焊接学报,2006,27(1):65-68.CHEN Ying-chun,LIU Hui-jie,FENG Ji-cai.Friction stir welding of 2219-O aluminum alloy[J].Transactions of the China Welding Institution,2006,27(1):65-68.(in Chinese)
[5]	宫文彪,田红娇,刘威,等.6082-T6铝合金厚板搅拌摩擦焊沿厚度方向性能变化[J].稀有金属材料与工程,2012,41(增刊2):854-857.GONG Wen-biao,TIAN Hong-jiao,LIU Wei,et al.Mechanicalproperties change along the thickness direction of thick aluminiumalloy 6082-T6 plate[J].Rare Metal Materials and Engineering,2012,41(Suppl 2):854-857.(in Chinese)
[6]	ERICSSON M,SANDSTROM R.Influence of welding speed on the fatigue of friction stir weldsand comparison with MIG and TIG[J].International Journal of Fatigue,2003,25:1379-1387.
[7]	周曙君,邢丽,柯黎明,等.2219铝合金搅拌摩擦焊焊接接头的疲劳性能[J].失效分析与预防,2007,2(3):20-24.ZHOU Shu-jun,XING Li,KE Li-ming,et al.Fatigue properties of 2219 aluminum alloy friction stir welds[J].Failure Analysis and Preverntion,2007,2(3):20-24.(in Chinese)
[8]	陈荣康,孙春方,戴瑛.6005A铝合金型材搅拌摩擦焊接头疲劳性能研究[J].力学季刊,2012,33(3):443-448.CHEN Rong-kang,SUN Chun-fang,DAI Ying.Fatigue property of friction stir welded extruded aluminium alloy6005A[J].Chinese Quarterly of Mechanics,2012,33(3):443-448.(in Chinese)
[9]	贺永海,张立武,胡春炜.2219铝合金搅拌摩擦焊工艺及接头性能[J].机械工程材料,2008,32(2):37-39.HE Yong-hai,ZHANG Li-wu,HU Chun-wei.Properties of joint of 2219 aluminum alloy friction stir welding[J].Materials for Mechanical Engineering,2008,32(2):37-39.(in Chinese)
[10]	CAHOON J R,BROUGHTON W H,KUTZAK A R.The determination of yield strength from hardness measurements[J].Metallurgical Transactions,1971,2(7):1979-1983.
[11]	刘廷光,夏爽,茹祥坤,等.利用EBSD技术分析低应变量形变显微组织[J].电子显微学报,2011,30(4/5):408-413.LIU Ting-guang,XIA Shuang,RU Xiang-kun,et al.Application of EBSD to analyzing low strain level microstructure[J].Journal of Chinese Electron Microscopy Society,2011,30(4/5):408-413.(in Chinese)
[12]	曹亮,周亦胄,金涛,等.晶界角度对一种镍基双晶高温合金持久性能的影响[J].金属学报,2014,50(1):11-18.CAO Liang,ZHOU Yi-zhou,JIN Tao,et al.Effect of grain boundary angle on stress rupture properties of a Nibased bicrystalsuper alloy[J].Acta Metallurgica Sinica,2014,50(1):11-18.(in Chinese)
[13]	张振,李静,张忠萍.航空铝合金疲劳参数理论估算方法分析[J].失效分析与预防,2011,6(1):28-31.ZHANG Zhen,LI Jing,ZHANG Zhong-ping.Estimation methods for fatigue parameters of aluminum alloy in aviation industry[J].Failure Analysis and Preverntion,2011,6(1):28-31.(in Chinese)

Cited By

Get Citation

PDF

XML

Article views (33) PDF downloads (12)

Turn off MathJax

Article Contents

Abstract

References

Fatigue Property Research of Friction Stir Welded Joints for 2219-T6 Aluminum Alloy

Abstract

References

Catalog

Export File

Citation

Format

Content