Hot Compression Deformation Behavior of Spray-Formed AlSn20Cu Alloy

Abstract:

The hot deformation behavior of spray-formed AlSn20Cu alloy during hot compression deformation was studied, and the constitutive equation of AlSn20Cu alloy was established. The samples of spray-formed AlSn20Cu alloy were compressed on Gleeble-3500 thermal simulation test machine. The error of the true stress caused by adiabatic heating effect in the experiment was corrected. The constitutive equation of spray-formed AlSn20Cu alloy could be represented by Zener-Hollomon parameter in a hyperbolic sine function. The results showed that the deformation temperatures and strain rates had a notable effect on the true stress of the alloy. At the identical deformation temperature, the true stress increased with the increase of strain rate. When the strain rate was constant, the stress decreased with the increase of deformation temperature. After hot compression deformation, the tin phase was elongated along the direction perpendicular to the compression axis with short strips and blocks. With the increase of deformation temperature and the decrease of strain rate, Sn phase distribution became more homogeneous.

• Periodical: Materials Science Forum (Volume 1035)
• Pages: 189-197
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.1035.189
• Online since: June 2021
• Authors: Bao Ying Li, Bao Hong Zhu*
• Keywords: AlSn20Cu Alloy, Constitutive Equation, Hot Deformation, Microstructure

References

[1] Z.C. Lu, M.Q. Zeng, Y. Gao, et al. Improving wear performance of dual-scale Al–Sn alloys by adding nano-Si@Sn: Effects of Sn nanophase lubrication and nano-Si polishing [J]. Wear, 2015, 338-339: 258-267.

DOI: 10.1016/j.wear.2015.06.017

[2] Z.C. Lu, Y. Gao, M.Q. Zeng, et al. Improving wear performance of dual-scale Al–Sn alloys: The role of Mg addition in enhancing Sn distribution and tribolayer stability[J]. Wear, 2014, 309(1-2): 216-225.

DOI: 10.1016/j.wear.2013.11.018

[3] J.H. Bak, D.H. Cho, S. Shin, et al. Wear properties of hybrid ABO+BN+CNT/Al-Sn alloy matrix composites for engine bearing materials[J]. Metals and Materials International, 2018, 24(1): 205-215.

DOI: 10.1007/s12540-017-7236-1

[4] L. Balanović, D. Živković, D. Manasijević, et al. Calorimetric study and thermal analysis of Al–Sn system[J]. Journal of Thermal Analysis and Calorimetry, 2013, 111(2): 1431-1435.

DOI: 10.1007/s10973-012-2499-8

[5] M.C. Lucchetta, F. Saporiti, F. Audebert. Improvement of surface properties of an Al–Sn–Cu plain bearing alloy produced by rapid solidification[J]. Journal of Alloys and Compounds, 2019, 805: 709-717.

DOI: 10.1016/j.jallcom.2019.07.082

[6] F. Bertelli, E.S. Freitas, N. Cheung, et al. Microstructure, tensile properties and wear resistance correlations on directionally solidified Al-Sn-(Cu; Si) alloys[J]. Journal of Alloys and Compounds, 2017, 695: 3621-3631.

DOI: 10.1016/j.jallcom.2016.11.399

[7] C.J. Kong, P.D. Brown, S.J. Harris, et al. The microstructures of a thermally sprayed and heat treated Al–20 wt.%Sn–3 wt.%Si alloy[J]. Materials Science and Engineering: A, 2005, 403(1-2): 205-214.

DOI: 10.1016/j.msea.2005.04.051

[8] X. Liu, M.Q. Zeng, Y. Ma, et al. Wear behavior of Al–Sn alloys with different distribution of Sn dispersoids manipulated by mechanical alloying and sintering[J]. Wear, 2008, 265(11-12): 1857-1863.

DOI: 10.1016/j.wear.2008.04.050

[9] S. Zhang, Q. Pan, J. Yan, et al. Effects of sliding velocity and normal load on tribological behavior of aged Al-Sn-Cu alloy[J]. Transactions of Nonferrous Metals Society of China, 2016, 26(7): 1809-1819.

DOI: 10.1016/s1003-6326(16)64292-9

[10] Marrocco, L.C. Driver, S.J. Harris, et al. Microstructure and Properties of Thermally Sprayed Al-Sn-Based Alloys for Plain Bearing Applications[J]. Journal of Thermal Spray Technology, 2006, 15(4): 634-639.

DOI: 10.1361/105996306x147009

[11] K.S. Cruz, E.S. Meza, F.A.P. Fernandes, et al. Dendritic Arm Spacing Affecting Mechanical Properties and Wear Behavior of Al-Sn and Al-Si Alloys Directionally Solidified under Unsteady-State Conditions[J]. Metallurgical and materials transactions. A, Physical metallurgy and materials science, 2010, 41(4): 972-984.

DOI: 10.1007/s11661-009-0161-2

[12] L. Wei, B. Han, F. Ye, et al. Influencing mechanisms of heat treatments on microstructure and comprehensive properties of Al–Zn–Mg–Cu alloy formed by spray forming[J]. Journal of.

DOI: 10.1016/j.jmrt.2020.03.121

[13] L.L. Liu, Q.L. Pan, X.D. Wang, et al. The effects of aging treatments on mechanical property and corrosion behavior of spray formed 7055 aluminium alloy[J]. Journal of Alloys and Compounds, 2018, 735: 261-276.

DOI: 10.1016/j.jallcom.2017.11.070

[14] H.A. Godinho, A.L.R. Beletati, E.J. Giordano, et al. Microstructure and mechanical properties of a spray formed and extruded AA7050 recycled alloy[J]. Journal of Alloys and Compounds, 2014, 586: S139-S142.

DOI: 10.1016/j.jallcom.2012.12.122

[15] S. Mandal, V. Rakesh, P.V. Sivaprasad, et al. Constitutive equations to predict high temperature flow stress in a Ti-modified austenitic stainless steel[J]. Materials Science and Engineering: A, 2009, 500(1-2): 114-121.

DOI: 10.1016/j.msea.2008.09.019

[16] Q. Zang, H. Yu, Y. Lee, et al. Hot deformation behavior and microstructure evolution of annealed Al-7.9Zn-2.7Mg-2.0Cu (wt%) alloy[J]. Journal of alloys and compounds, 2018, 763: 25-33.

DOI: 10.1016/j.jallcom.2018.05.307

[17] R.L. Goetz, S.L. Semiatin. The adiabatic correction factor for deformation heating during the uniaxial compression test[J]. Journal of Materials Engineering and Performance, 2001, 10(6): 710-717.

DOI: 10.1361/105994901770344593

[18] S.F. Medina, C.A. Hernandez. General expression of the Zener-Hollomon parameter as a function of the chemical composition of low alloy and microalloyed steels[J]. Acta materialia, 1996, 44(1): 137-148.

DOI: 10.1016/1359-6454(95)00151-0

[19] C. Sun, J. Luan, G. Liu, et al. Predicted constitutive modeling of hot deformation for AZ31 magnesium alloy[J]. 2012, 48(7): 853-860.

DOI: 10.3724/sp.j.1037.2011.00641

[20] C.M. Sellars, W.J. Mctegart. On the mechanism of hot deformation[J]. Pergamon, 1966, 14(9).

[21] W. Yu, D.L. L., C.C. L.. A correlation between tensile flow stress and Zener-Hollomon factor in TiAl alloys at high temperatures[J]. Journal of Materials Science Letters, 2000, 19(13).

[22] M. El Mehtedi, F. Gabrielli, S. Spigarelli. Hot workability in process modeling of a bearing steel by using combined constitutive equations and dynamic material model[J]. Materials & Design, 2014, 53: 398-404.

DOI: 10.1016/j.matdes.2013.07.055