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4 - Mechanisms of Plastic Deformation in Metals

Published online by Cambridge University Press:  24 May 2021

T. W. Clyne  and
J. E. Campbell
T. W. Clyne
Affiliation:
University of Cambridge
J. E. Campbell
Affiliation:
Plastometrex, Science Park, Milton Road, Cambridge
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Summary

The capacity of metals to undergo large plastic strains (without fracturing) is one of their most important characteristics. It allows them to be formed into complex shapes. It also means that a component under mechanical load is likely to experience some (local) plasticity, rather than starting to crack or exhibit other kinds of damage that could impair its function. Metals are in general superior to other types of material in this respect. This has been known for millennia, but the reasons behind it, and the mechanisms involved in metal plasticity, only started to become clear less than a century ago and have been understood in real depth for just a few decades. Central to this understanding is the atomic scale structure of dislocations, and the ways in which they can move so as to cause plastic deformation, although there are also several other plasticity mechanisms that can be activated under certain circumstances. These are described in this chapter, together with information about how they tend to be affected by the metal microstructure. This term encompasses a complex range of features, including crystal structure, grain size, texture, alloying additions, impurities, phase constitution etc.

Keywords

DislocationsSchmid’s law: solution strengtheningprecipitation hardeningdeformation twinningmartensitic transformationscreep.
Type
Chapter
Information
Testing of the Plastic Deformation of Metals , pp. 43 - 80
Publisher: Cambridge University Press
Print publication year: 2021

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References

Hirth, JP, A brief history of dislocation theory. Metallurgical Transactions A: Physical Metallurgy and Materials Science, 1985. 16(12): 2085–2090.Google Scholar
Rodriguez, P, Sixty years of dislocations. Bulletin of Materials Science, 1996. 19(6): 857–872.CrossRefGoogle Scholar
Chang, R and Graham, LJ, Edge dislocation core structure and Peierls barrier in body-centred cubic iron. Physica Status Solidi, 1966. 18(1): 99–103.Google Scholar
Schmid, E and Boas, W, Plasticity of Crystals, with Special Reference to Metals (translated from German). London: FA Hughes & Co., 1950.Google Scholar
Tang, M, Devincre, B and Kubin, LP, Simulation and modelling of forest hardening in body centre cubic crystals at low temperature. Modelling and Simulation in Materials Science and Engineering, 1999. 7(5): 893–908.Google Scholar
Saimoto, S, Dynamic dislocation-defect analysis. Philosophical Magazine, 2006. 86(27): 4213–4233.CrossRefGoogle Scholar
Norfleet, DM, Dimiduk, DM, Polasik, SJ, Uchic, MD and Mills, MJ, Dislocation structures and their relationship to strength in deformed nickel microcrystals. Acta Materialia, 2008. 56(13): 2988–3001.Google Scholar
Brown, LM, Constant intermittent flow of dislocations: central problems in plasticity. Materials Science and Technology, 2012. 28(11): 1209–1232.CrossRefGoogle Scholar
Ashby, MF, Results and consequences of a recalculation of Frank–Read and Orowan stress. Acta Metallurgica, 1966. 14(5): 679–681.Google Scholar
Xu, SZ, Xiong, LM, Chen, YP and McDowell, DL, An analysis of key characteristics of the Frank–Read source process in FCC metals. Journal of the Mechanics and Physics of Solids, 2016. 96: 460–476.Google Scholar
Thornton, PR, Mitchell, TE and Hirsch, PB, Dependence of cross-slip on stacking fault energy in face centred cubic metals and alloys. Philosophical Magazine, 1962. 7(80): 1349–1369.CrossRefGoogle Scholar
Puschl, W, Models for dislocation cross-slip in close-packed crystal structures: a critical review. Progress in Materials Science, 2002. 47(4): 415–461.Google Scholar
Rao, SI, Dimiduk, DM, Parthasarathy, TA, El-Awady, J, Woodward, C and Uchic, MD, Calculations of intersection cross-slip activation energies in FCC metals using nudged elastic band method. Acta Materialia, 2011. 59(19): 7135–7144.Google Scholar
Sakai, T and Jonas, JJ, Dynamic recrystallization – mechanical and microstructural considerations. Acta Metallurgica, 1984. 32(2): 189–209.Google Scholar
Doherty, RD, Hughes, DA, Humphreys, FJ, Jonas, JJ, Jensen, DJ, Kassner, ME, King, WE, McNelley, TR, McQueen, HJ and Rollett, AD, Current issues in recrystallization: a review. Materials Science and Engineering A: Structural Materials Properties Microstructure and Processing, 1997. 238(2): 219–274.CrossRefGoogle Scholar
Sakai, T, Belyakov, A, Kaibyshev, R, Miura, H and Jonas, JJ, Dynamic and post-dynamic recrystallization under hot, cold and severe plastic deformation conditions. Progress in Materials Science, 2014. 60: 130–207.Google Scholar
Roters, F, Eisenlohr, P, Hantcherli, L, Tjahjanto, DD, Bieler, TR and Raabe, D, Overview of constitutive laws, kinematics, homogenization and multiscale methods in crystal plasticity finite-element modeling: theory, experiments, applications. Acta Materialia, 2010. 58(4): 1152–1211.CrossRefGoogle Scholar
Lee, J, Kim, YC, Lee, S, Ahn, S and Kim, NJ, Correlation of the microstructure and mechanical properties of oxide-dispersion-strengthened coppers fabricated by internal oxidation. Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, 2004. 35A(2): 493–502.Google Scholar
Chen, F, Yan, ZQ and Wang, T, Effects of internal oxidation methods on microstructures and properties of Al2O3 dispersion-strengthened copper alloys, in High Performance Structural Materials, Han, Y, ed. Singapore: Springer-Verlag, 2018, pp. 1–8.Google Scholar
Guskovic, D, Markovic, D and Nestorovic, S, Effect of deformation and oxygen content on mechanical properties of different copper wires. Bulletin of Materials Science, 1997. 20(5): 693–697.CrossRefGoogle Scholar
Ravichandran, N and Prasad, Y, Influence of oxygen on dynamic recrystallization during hot working of polycrystalline copper. Materials Science and Engineering A: Structural Materials Properties Microstructure and Processing, 1992. 156(2): 195–204.CrossRefGoogle Scholar
Takeuchi, S and Argon, AS, Glide and climb resistance to the motion of an edge dislocation due to dragging a Cottrell atmosphere. Philosophical Magazine A: Physics of Condensed Matter Structure Defects and Mechanical Properties, 1979. 40(1): 65–75.Google Scholar
Zhao, JZ, De, AK and De Cooman, BC, Kinetics of Cottrell atmosphere formation during strain aging of ultra-low carbon steels. Materials Letters, 2000. 44(6): 374–378.Google Scholar
Wilde, J, Cerezo, A and Smith, GDW, Three-dimensional atomic-scale mapping of a Cottrell atmosphere around a dislocation in iron. Scripta Materialia, 2000. 43(1): 39–48.Google Scholar
Veiga, RGA, Perez, M, Becquart, CS and Domain, C, Atomistic modeling of carbon Cottrell atmospheres in BCC iron. Journal of Physics-Condensed Matter, 2013. 25(2).Google Scholar
Herman, H, Fine, ME and Cohen, JB, Formation and reversion of Guinier–Preston zones in Ai-5.3 at.% Zn. Acta Metallurgica, 1963. 11(1): 43–56.Google Scholar
Gerold, V, On the structures of Guinier–Preston zones in Al-Cu alloys. Scripta Metallurgica, 1988. 22(7): 927–932.CrossRefGoogle Scholar
Matsuda, K, Gamada, H, Fujii, K, Uetani, Y, Sato, T, Kamio, A and Ikeno, S, High-resolution electron microscopy on the structure of Guinier–Preston zones in an Al-1.6 mass pct Mg2Si alloy. Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, 1998. 29(4): 1161–1167.Google Scholar
Chalmers, B, The cry of tin. Nature, 1932. 129: 650–651.Google Scholar
Kelly, A, Neumann bands in pure iron. Proceedings of the Physical Society of London Section A, 1953. 66: 403–405.Google Scholar
Otsuka, K and Ren, X, Physical metallurgy of Ti-Ni-based shape memory alloys. Progress in Materials Science, 2005. 50(5): 511–678.Google Scholar
Kim, HY, Ikehara, Y, Kim, JI, Hosoda, H and Miyazaki, S, Martensitic transformation, shape memory effect and superelasticity of Ti-Nb binary alloys. Acta Materialia, 2006. 54(9): 2419–2429.CrossRefGoogle Scholar
Jani, JM, Leary, M, Subic, A and Gibson, MA, A review of shape memory alloy research, applications and opportunities. Materials & Design, 2014. 56: 1078–1113.Google Scholar
Weertman, J, Steady-state creep through dislocation climb. Journal of Applied Physics, 1957. 28(3): 362–364.CrossRefGoogle Scholar
Ashby, MF, On interface-reaction control of Nabarro–Herring creep and sintering. Scripta Metallurgica, 1969. 3(11): 837–842.Google Scholar
Nix, WD, The effects of grain shape on Nabarro–Herring and Coble creep processes. Metals Forum, 1981. 4(1–2): 38–43.Google Scholar
Owen, DM and Langdon, TG, Low stress creep behavior: an examination of Nabarro–Herring and Harper–Dorn creep. Materials Science and Engineering A: Structural Materials Properties Microstructure and Processing, 1996. 216(1–2): 20–29.CrossRefGoogle Scholar
Yue, QZ, Liu, L, Yang, WC, Huang, TW, Zhang, J and Fu, HZ, Stress dependence of dislocation networks in elevated temperature creep of Ni-based single crystal superalloy. Materials Science and Engineering A: Structural Materials Properties Microstructure and Processing, 2019. 742: 132–137.CrossRefGoogle Scholar
Chandler, HD, Steady state power law creep resulting from dislocation substructure saturation being approached at higher stress. Materials Science and Engineering A: Structural Materials Properties Microstructure and Processing, 2020. 771 138622, https://doi.org/10.1016/j.msea.2019.138622.CrossRefGoogle Scholar

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