Effect of Welding Thermal Cycle on Mechanical Properties and Corrosion Resistance of A7N01-T5 Aluminum Alloy

Conference paper
Part of the Lecture Notes in Mechanical Engineering book series (LNME)

Abstract

In this paper, the thermal cycle treatment of A7N01-T5 aluminum alloy was carried out with the peak temperatures of 480, 420, 320 and 260 °C, and the thermal simulation specimens with four kinds of peak temperatures were obtained. Electrochemical methods such as open circuit potential, polarization curve and impedance were used to investigate the corrosion behavior about the four kinds of thermal simulated specimens. The results showed that the mechanical properties and corrosion properties of the specimens after thermal cycle changed significantly, and the specimens which experienced high temperature (480, 420 °C) thermal cycle was more significant than that experienced low temperature (320, 260 °C) thermal cycle. The mechanical properties results showed that the tensile strength of the specimens under high temperature thermal cycle was higher than that of base metal, while the strength of the low temperature cycle was lower than that of base metal, and the specimens were softened after low temperature thermal cycle. Electrochemical experimental results showed that the corrosion resistance of the specimens under high temperature thermal cycle was weaker than the low temperature thermal simulation. However, the corrosion resistance about four kinds of thermal simulation parts was worse than that of the parent material base metal. The grain size and the distribution of precipitation phase changed by the rapid of heating and cooling process in welding heat cycle, thereby affecting the mechanical properties and corrosion resistance performance of the thermal simulation parts, and the specimens that experienced different peak temperature would have been experienced different evolution process, so the distribution of grain boundary continuity was different. Thus, the welding thermal simulation parts with different thermal cycles also exhibit different corrosion resistance.

Keywords

A7N01-T5 aluminum alloy Welding thermal cycle Grain size Precipitated phase Mechanical property Corrosion resistance 

References

  1. 1.
    T. Dursun, C. Soutis, Recent development in advanced aircraft aluminium alloys. Mater. Des. 56, 862–871 (2014)CrossRefGoogle Scholar
  2. 2.
    J.C. Williams, E.A. Strake, Progress in structural materials for aerospace systems. Acta Mater. 51, 5775–5799 (2003)Google Scholar
  3. 3.
    R.O. Vakhromov, V.V. Antipov, E.A. Tkachenko, Research and development of high-strength of Al–Zn–Mg–Cu alloys. TCAA13: 13th international conference on aluminum alloys wiled online library, pp. 1514–1520 (2012)CrossRefGoogle Scholar
  4. 4.
    L. Zhang, X.Y. Li, Z.R. Nie et al., Microstruture and mechanical properties of a new Al–Zn–Mg–Cu alloy joints welded by laser beam. Mater. Des., pp. 451–458 (2015)CrossRefGoogle Scholar
  5. 5.
    Q. Duan, X.G. Zhang, Z.J. Li et al., Nonlinear temperature field analysis and thermal simulation of welding thermal cycle. J. Xi’an Jiaotong Univ. 4,35(4), 412–417 (2001)Google Scholar
  6. 6.
    J.P. Wu, Y.L. Yang, B. Zhao et al., Effect of welding thermal cycle on microstructure and properties of Ti35 titanium alloy. 10 (2010)Google Scholar
  7. 7.
    J. Moon, H.Y. Ha, T.H. Lee, Corrosion behavior in high heat input welded heat-affected zone of Ni-free high-nitrogen Fe-18Cr-10Mn-N austenitic stainless steel. Mater. Charact. 82(5), 113–119 (2013)CrossRefGoogle Scholar
  8. 8.
    H.Y. Li, X.F. Wang, Y. Tang et al., Determination of continuous cooling transition curve of 7A04 aluminum alloy. Chin. J. Nonferrous Metals 20(4), 640–646 (2010)Google Scholar
  9. 9.
    H.Y. Li, J. Bin, Y.K. Zhao et al., Establishment of continuous cooling transformation diagrams of aluminum alloys using in situ voltage measurement. Sci Direct 21, 1944–1949 (2011)Google Scholar
  10. 10.
    G. Li, Diffusion Interface Field Variations of Grain Growth in Heat Affected Zone. Zhengzhou University (2006)Google Scholar
  11. 11.
    F. Gharavi, K.A. Matori, R. Yunus et al., Corrosion behavior of Al6061 alloy weldment produced by friction stir welding process. J. Mater. Res. Technol. 4(3), 314–322 (2015)CrossRefGoogle Scholar
  12. 12.
    B.S. Wang, W. Wu, T.J. Ma, Effect of heat input on the microstructure about heat affected zone in Inconel 625 alloy. Weld. Technol. 11, 12–14 (2014)Google Scholar
  13. 13.
    D.Q. Zhang, X. Jin, L.X. Gao et al., Effect of laser–arc hybrid welding on fracture and corrosion behaviour of AA6061-T6 alloy. Mater. Sci. Eng., A 528(6), 2748–2754 (2011)CrossRefGoogle Scholar
  14. 14.
    E. Bousquet, A. Poulon-Quintin, M. Puiggali et al., Relationship between microstructure, microhardness and corrosion sensitivity of an AA 2024-T3 friction stir welded joint. Corros. Sci. 53(9), 3026–3034 (2011)CrossRefGoogle Scholar
  15. 15.
    Stefano Maggiolino, Chiara Schmid, Corrosion resistance in FSW and in MIG welding techniques of AA6XXX. J. Mater. Process. Technol. 197, 237–240 (2008)CrossRefGoogle Scholar
  16. 16.
    L.Z. Yan, Y.A. Zhang, X.W. Li et al., Microstructural evolution of Al-0.66Mg-0.85Si alloy during homogenization. Trans. Nonferrous Met. Soc. China, pp. 939–945 (2014)CrossRefGoogle Scholar
  17. 17.
    M. Zain-ul-abdein, Thermo-mechanical characterization of AA 6056-T4 and estimation of its material properties using genetic algorithm. Mater. Des. 31, 4302–4311 (2010)CrossRefGoogle Scholar
  18. 18.
    M.P. Liu, T.H. Jiang, J. Wang et al., Aging behavior and mechanical properties of 6013 aluminum alloy processed by severe plastic deformation. Trans. Nonferrous Met. Soc. China 24, 3858–3865 (2014)Google Scholar
  19. 19.
    Y. Wang, H.J. Liu, J.C. Feng et al., 7075 aluminum alloy FSW welding thermal cycle and its influence on the heat affected zone. Hot Forg. Weld. 37(17), 22–25 (2008)Google Scholar
  20. 20.
    E. McCatterty, Validation of corrosion rates measured by the Tafel extrapolation method. Corros. Sci. 47, 3202–3215 (2005)CrossRefGoogle Scholar
  21. 21.
    M.Y. Wu, J.Q. Tian, L.X. Cao et al., Electrochemical corrosion behavior of tungsten aluminum alloy in different Nacl solutions. Corros. Sci. Protect. Technol. 27(1), 47–52 (2015)Google Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  • Cui Huang
    • 1
  • Shufang Zhang
    • 2
  • Jie Hu
    • 2
  • Xiaomin Wang
    • 1
  1. 1.School of Life Science and EngineeringSouthwest Jiaotong UniversityChengduChina
  2. 2.School of Material Science and EngineeringSouthwest Jiaotong UniversityChengduChina

Personalised recommendations