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HomeSolid State PhenomenaSolid State Phenomena Vol. 294Thickness-Dependent Tensile Behavior of Cu-Mn...

Thickness-Dependent Tensile Behavior of Cu-Mn Alloys under Different Dislocation Slip Modes

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Abstract:

To explore the role of dislocation slip mode playing in the size effect of mechanical behavior of metallic materials, the tensile behavior of Cu-5at.%Mn and Cu-20at.%Mn alloys with thickness (t) spanning from 0.1 to 2.0 mm is investigated. The results reveal that the yield strength σ_YS of Cu-5at.%Mn alloy displays an independence of thickness, whereas the ultimate tensile strength σ_UTS and the uniform elongation δ show an obvious size effect. The σ_UTS and δ first slightly decrease as t is reduced from 2.0 to 0.5 mm, but evidently drop when t is below 0.5 mm. A similar size effect is also exhibited in Cu-20at.%Mn alloy; however, the variation trend of “the smaller the weaker” in size effect can be weakened by the planar slip of dislocations occurring during the deformation of this alloy.

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Functional Materials and Metallurgy II

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Periodical:

Solid State Phenomena (Volume 294)

Pages:

104-110

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.294.104

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Online since:

July 2019

Authors:

Le Le Kang, Dong Han, Xiao Wu Li*

Keywords:

Cu-Mn Alloys, Planar Slip, Tensile Behavior, Thickness, Wavy Slip

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* - Corresponding Author

[1] W. Menz, J. Mohr, O. Paul, Microsystem technology, Birkhäuser Basel 1 (2001) 471-478.

[2] W.D. Nix, Mechanical properties of thin films, Metall. Trans. A 20 (1989) 2217.

[3] M. Ohring, Rreliability and failure of electronic materials and devices, Academic Press (1998) 675-692.

[4] E. Arzt, Size effects in materials due to microstructural and dimensional constraints: a comparative review, Acta Mater. 46 (1998) 5611-5626.

DOI: 10.1016/s1359-6454(98)00231-6

[5] G. Dehm, C. Motz, C. Scheu, H. Clemens, P.H. Mayrhofer, Ch. Mitterer, Mechanical size effects in miniaturized and bulk materials, Adv. Eng. Mater. 8 (2010) 1033-1045.

DOI: 10.1002/adem.200600153

[6] M.G.D. Geers, W.A.M. Brekelmans, P.J.M. Janssen, Size effects in miniaturized polycrystalline FCC samples: Strengthening versus weakening, Int. J. Solids Struct. 43 (2006) 7304-7321.

DOI: 10.1016/j.ijsolstr.2006.05.009

[7] G.P. Zhang, K.H. Sun, B. Zhang, Tensile and fatigue strength of ultrathin copper films, Mater. Sci. Eng. A 483 (2008) 387-390.

[8] M. Lederer, V. Gröger, G. Khatibi, B. Weiss, Size dependency of mechanical properties of high purity aluminium foils, Mater. Sci. Eng. A 527 (2010) 590-599.

DOI: 10.1016/j.msea.2009.08.016

[9] X.P. Zhang, S.F. Feng, X.T. Hong, J.Q. Liu, Orientation-related specimen thickness effects on mechanical properties of hot extruded AZ31B magnesium alloy, Mater. Des. 46 (2013) 256-263.

DOI: 10.1016/j.matdes.2012.10.037

[10] M.A. Haque, M.T.A. Saif, Strain gradient effect in nanoscale thin films, Acta Mater. 51 (2003) 3053-3061.

DOI: 10.1016/s1359-6454(03)00116-2

[11] C.Y. Dai, G.P. Zhang, C. Yan, Size effects on tensile and fatigue behavior of polycrystalline metal foils at the micrometer scale, Philos. Mag. 91 (2011) 932-945.

DOI: 10.1080/14786435.2010.538017

[12] M.F. Horstemeyer, M.I. Baskes, S.J. Plimpton, Length scale and time scale effects on the plastic flow of fcc metals, Acta Mater. 49 (2001) 4363-4374.

DOI: 10.1016/s1359-6454(01)00149-5

[13] J. R. Greer, W. D. Nix, Nanoscale gold pillars strengthened through dislocation starvation, Phys. Rev. B 73 (2006) 1.

DOI: 10.1103/physrevb.73.245410

[14] J.R. Greer, W.C. Oliver, W.D. Nix, Size dependence of mechanical properties of gold at the micron scale in the absence of strain gradients, Appl. Phys. A 53 (2005) 1821-1830.

DOI: 10.1016/j.actamat.2004.12.031

[15] G. Simons, C. Weippert, J. Dual, J. Villain, Size effects in tensile testing of thin cold rolled and annealed Cu foils, Mater. Sci. Eng. A 416 (2006) 290-299.

DOI: 10.1016/j.msea.2005.10.060

[16] J. Xu, C.Y. Dai, B. Zhang, G.P. Zhang, Strain-gradient dependent fatigue behavior of micron-thick copper single crystal foils, Comp. Mater. Sci. 85 (2014) 223-229.

DOI: 10.1016/j.commatsci.2014.01.004

[17] Z.Y. Wang, D. Han, X.W. Li, Competitive effect of stacking fault energy and short-range clustering on the plastic deformation behavior of Cu-Ni alloys, Mater. Sci. Eng. A, 679 (2017) 484-492.

DOI: 10.1016/j.msea.2016.10.064

[18] D. Han, Z.Y. Wang, Y. Yan, F. Shi and X.W. Li, A good strength-ductility match in Cu-Mn alloys with high stacking fault energies: Determinant effect of short range ordering, Scr. Mater. 133 (2017) 59-64.

DOI: 10.1016/j.scriptamat.2017.02.010

[19] X.W. Li, N. Peng, X.M. Wu, Z.G. Wang, Plastic-strain-amplitude dependence of dislocation structures in cyclically deformed <112>-oriented Cu-7 at. pct Al alloy single crystals, Metall. Mater. Trans. A 45 (2014) 3835-3843.

DOI: 10.1007/s11661-014-2353-7

[20] Y. Yan, M. Lu, W.W. Guo, X.W. Li, Effect of pre-fatigue deformation on thickness-dependent tensile behavior of coarse-grained pure aluminum sheets, Mater. Sci. Eng. A 600 (2014) 99–107.

DOI: 10.1016/j.msea.2014.02.008

[21] M.Q. Liu, Y.L. Liu, Y. Yan, D. Han, X.W. Li, Thickness-dependent tensile and fatigue behavior of a single-slip-oriented Cu single crystal, Cryst. Res. Technol. 52 (2017) 1700178.

DOI: 10.1002/crat.201700178