Skip to main navigation menu Skip to main content Skip to site footer
Journal of Material Science and Technology Research

Articles

Vol. 9 No. 1 (2022)

The Effect of Temperature on the Creep Ageing Characteristics of Al-Li Alloys

DOI
https://doi.org/10.31875/2410-4701.2022.09.07
Submitted
December 26, 2022
Published
2022-12-26

Abstract

Abstract: In this paper, the evolution of creep strain and mechanical properties of 2195 Al-Li alloy is investigated at different temperatures (160/170/180°C), with the aim of discovering the mechanism of temperature influence on creep properties and providing a reference for improving the creep properties of the target material by adjusting the temperature in the future. This study demonstrates that the creep curve is strongly influenced by temperature, with a plateau and a transition period occurring at low temperatures. As the temperature increases, the creep curve gradually reverts to the typical two-stage creep characteristics due to the interaction of dislocation density proliferation and dislocation reversion within the material at high temperatures. In addition, by means of tests such as TEM, it was confirmed that the decrease in mechanical properties of the material caused by increasing the creep temperature is mainly due to the coarsening of precipitates and the appearance of precipitation-free zones at grain boundaries.

References

  1. Wang X, Wang J, Yue X, et al. Effect of aging treatment on the exfoliation corrosion and stress corrosion cracking behaviors of 2195 Al-Li alloy [J]. Materials & Design, 2015; 67: 596-605. https://doi.org/10.1016/j.matdes.2014.11.007
  2. Ning J, Li Q, Zou Z, et al. Hot tensile deformation behavior and microstructural evolution of 2195 Al-Li alloy [J]. Vacuum, 2021; 188: 110176. https://doi.org/10.1016/j.vacuum.2021.110176
  3. Ma Y, Li J, Sang F, et al. Grain structure and tensile property of Al-Li alloy sheet caused by different cold rolling reduction [J]. Transactions of Nonferrous Metals Society of China, 2019; 29(8): 1569-1582. https://doi.org/10.1016/S1003-6326(19)65064-8
  4. Li Q, Ning J, Chen L, et al. The mechanical response and micro structural evolution of 2195 Al-Li alloy during hot tensile deformation [J]. Journal of Alloys and Compounds, 2020; 848: 156515. https://doi.org/10.1016/j.jallcom.2020.156515
  5. Xu L, Zhan L, Xu Y, et al. Thermo mechanical pretreatment of Al-Zn-Mg-Cu alloy to improve formability and performance during creep-age forming [J]. Journal of Materials Processing Technology, 2021; 293: 117089. https://doi.org/10.1016/j.jmatprotec.2021.117089
  6. Li H, Huang D, Kang W, et al. Effect of different aging processes on the microstructure and mechanical properties of a novel Al-Cu-Li alloy [J]. Journal of Materials Science & Technology, 2016; 32(10): 1049-1053. https://doi.org/10.1016/j.jmst.2016.01.018
  7. Lei C, Yang H, Li H, et al. Dependences of microstructures and properties on initial tempers of creep aged 7050 aluminum alloy [J]. Journal of Materials Processing Technology, 2017; 239: 125-132. https://doi.org/10.1016/j.jmatprotec.2016.07.004
  8. Wang Y L, Jiang H C, Li Z M, et al. Two-stage double peaks ageing and its effect on stress corrosion cracking susceptibility of Al-Zn-Mg alloy [J]. Journal of materials science & technology, 2018; 34(7): 1250-1257. https://doi.org/10.1016/j.jmst.2017.05.008
  9. Jiang B, Cao F, Wang H, et al. Effect of aging time on the microstructure evolution and mechanical property in an Al-Cu-Li alloy sheet [J]. Materials Science and Engineering: A, 2019; 740: 157-164. https://doi.org/10.1016/j.msea.2018.10.064
  10. Dong Y, Ye L, Liu X, et al. Effects of large strain pre-deformation on creep age behavior and microstructural evolution of an Al-Cu-Li alloy [J]. Materials Letters, 2022, 324: 132699. https://doi.org/10.1016/j.matlet.2022.132699
  11. Tang J, Bo Y U, Zhang J, et al. Effects of pre-deformation mode and strain on creep aging bend-forming process of Al− Cu− Li alloy [J]. Transactions of Nonferrous Metals Society of China, 2020, 30(5): 1227-1237. https://doi.org/10.1016/S1003-6326(20)65291-8
  12. Yang X, Wang J, Zhang M, et al. Achieving high strength and ductility of Al-Cu-Li alloy via creep aging treatment with different pre-strain levels [J]. Materials Today Communications, 2021, 29: 102898. https://doi.org/10.1016/j.mtcomm.2021.102898
  13. Chen F, Zhan L, Gao T, et al. Creep aging properties variation and microstructure evolution for 2195 Al-Li alloys with various loading rates [J]. Materials Science and Engineering: A, 2021, 827: 142055. https://doi.org/10.1016/j.msea.2021.142055
  14. Xu Y, Zhan L, Ma Z, et al. Effect of heating rate on creep aging behavior of Al-Cu-Mg alloy [J]. Materials Science and Engineering: A, 2017; 688: 488-497. https://doi.org/10.1016/j.msea.2017.02.030
  15. Xu L, Tong C, Zhan L, et al. Improved creep forming efficiency and retained performance via a novel two-stage creep aging process of Al-Zn-Mg-Cu alloys [J]. Materials Science and Engineering: A, 2022; 851: 143581. https://doi.org/10.1016/j.msea.2022.143581
  16. Chen F, Wang P, Zhan L, et al. Creep behavior and microstructure evolution during two-stage creep aging of a 2195 Al-Li alloy [J]. Materials Science and Engineering: A, 2022; 850: 143555. https://doi.org/10.1016/j.msea.2022.143555
  17. Zhan L, Yu W, Xu Y, et al. Creep aging behavior of Al-Cu-Mg-Si alloy with elastic and plastic loads [J]. Materials Characterization, 2022; 191: 112132. https://doi.org/10.1016/j.matchar.2022.112132
  18. Chen F, Zhong J, Zhan L, et al. Effect of pre-aging on creep aging properties and microstructure evolution of 2195 Al-Li alloy [J]. Journal of Materials Research and Technology, 2022; 21: 1029-1041. https://doi.org/10.1016/j.jmrt.2022.09.075
  19. Chen K, Liu C, Ma P, et al. Enhancing creep formability and comprehensive property in Al-Mg-Si alloy by combinatorial pre-ageing and large pre-deformation [J]. Materials Science and Engineering: A, 2021; 826: 141967. https://doi.org/10.1016/j.msea.2021.141967
  20. Dai H, Xu G, Li Y, et al. Effects of electropulsing frequency on mechanical properties, corrosion behavior and microstructure of a creep-aged 7050 aluminum alloy [J]. Materials Characterization, 2022; 194: 112386. https://doi.org/10.1016/j.matchar.2022.112386
  21. Zhou C, Zhan L, Li H. Improving creep age formability of an Al-Cu-Li alloy by electropulsing [J]. Journal of Alloys and Compounds, 2021; 870: 159482. https://doi.org/10.1016/j.jallcom.2021.159482
  22. Chen K, Zhan L, Xu Y, et al. Effect of pulsed current density on creep-aging behavior and microstructure of AA7150 aluminum alloy [J]. Journal of Materials Research and Technology, 2020; 9(6): 15433-15441. https://doi.org/10.1016/j.jmrt.2020.10.100
  23. Wang X, Rong Q, Shi Z, et al. Improved creep behaviour for a high strength Al-Li alloy in creep age forming: Experimental studies and constitutive modelling [J]. International Journal of Plasticity, 2022; 159: 103447. https://doi.org/10.1016/j.ijplas.2022.103447
  24. Peng N, Zhan L, Xu Y, et al. Anisotropy in creep-aging behavior of Al-Li alloy under different stress levels: experimental and constitutive modelling [J]. Journal of Materials Research and Technology, 2022; 20: 3456-3470. https://doi.org/10.1016/j.jmrt.2022.08.046
  25. Li Y, Shi Z, Lin J, et al. Experimental investigation of tension and compression creep-ageing behaviour of AA2050 with different initial tempers [J]. Materials Science and Engineering: A, 2016; 657: 299-308. https://doi.org/10.1016/j.msea.2016.01.074
  26. Hu L, Zhan L, Liu Z, et al. The effects of pre-deformation on the creep aging behavior and mechanical properties of Al-Li-S4 alloys [J]. Materials Science and Engineering: A, 2017; 703: 496-502. https://doi.org/10.1016/j.msea.2017.07.068
  27. Jiang L, Cui Y, Wu M, et al. Creep behavior and dislocation mechanism of Ni3Al based single crystal alloy IC6SX at 760° C [J]. Progress in Natural Science: Materials International, 2021; 31(5): 755-761. https://doi.org/10.1016/j.pnsc.2021.09.006
  28. Fernández R, Bruno G, Garcés G, et al. Fractional Brownian motion of dislocations during creep deformation of metals [J]. Materials Science and Engineering: A, 2020; 796: 140013. https://doi.org/10.1016/j.msea.2020.140013
  29. Jiang S, Peng R L, Hegedűs Z, et al. Micromechanical behavior of multilayeredTi/Nb composites processed by accumulative roll bonding: An in-situ synchrotron X-ray diffraction investigation [J]. Acta Materialia, 2021; 205: 116546. https://doi.org/10.1016/j.actamat.2020.116546
  30. Ungar T. Microstructural parameters from X-ray diffraction peak broadening [J]. Scripta Materialia, 2004; 51(8): 777-781. https://doi.org/10.1016/j.scriptamat.2004.05.007
  31. ZhouC, Zhan L, Li H, et al. Mechanism of an acceleration in T1 precipitation kinetics in an Al-Cu-Li alloy by electropulsing [J]. Vacuum, 2021; 194: 110558. https://doi.org/10.1016/j.vacuum.2021.110558
  32. Xu Y, Zhan L, Li W. Effect of pre-strain on creep aging behavior of 2524 aluminum alloy [J]. Journal of Alloys and Compounds, 2017; 691: 564-571. https://doi.org/10.1016/j.jallcom.2016.08.291
  33. Chen K, Wu X, Cao Y, et al. Enhanced strength and ductility in an Al-Cu-Li alloy via long-term ageing [J]. Materials Science and Engineering: A, 2021; 811: 141092. https://doi.org/10.1016/j.msea.2021.141092
  34. Vasudevan A K, Ludwiczak E A, Baumann S F, et al. Grain boundary fracture in Al-Li alloys [J]. Materials science and technology, 1986; 2(12): 1205-1209. https://doi.org/10.1179/mst.1986.2.12.1205
  35. Suresh S, Vasudevan A K, Tosten M, et al. Microscopic and macroscopic aspects of fracture in lithium-containing aluminum alloys [J]. Acta Metallurgica, 1987; 35(1): 25-46. https://doi.org/10.1016/0001-6160(87)90210-0
  36. Jha S C, Sanders Jr T H, Dayananda M A. Grain boundary precipitate free zones in Al-Li alloys [J]. Acta Metallurgica, 1987; 35(2): 473-482. https://doi.org/10.1016/0001-6160(87)90253-7
  37. Ren S, Chen J, Liu J, Fang L, Liu P, Ming W, Wu C. Study of grain boundary precipitation behavior of 7150 aluminum alloy during aging [J]. Journal of Electron Microscopy, 2011; 30(Z1): 444-450.
  38. Munitz A, Cotler C, Talianker M. Aging impact on mechanical properties and microstructure of Al-6063 [J]. Journal of materials science, 2000; 35(10): 2529-2538. https://doi.org/10.1023/A:1004742407600