Ultrahard and super-stable pure aluminum with Schwarz crystal structure

References

• Schuh CA, Nieh TG, Iwasaki H. The effect of solid solution W additions on the mechanical properties of nanocrystalline Ni. Acta Mater. 2003;51(2):431–443.
   Web of Science ®Google Scholar
• Lu L, Chen X, Huang X, et al. Revealing the maximum strength in nanotwinned copper. Science. 2009;323(5914):607–610.
   PubMed Web of Science ®Google Scholar
• Schiotz J, Jacobsen KW. A maximum in the strength of nanocrystalline copper. Science. 2003;301(5638):1357–1359.
   PubMed Web of Science ®Google Scholar
• Chinh NQ, Szommer P, Horita Z, et al. Experimental evidence for grain-boundary sliding in ultrafine-grained aluminum processed by severe plastic deformation. Adv Mater. 2006;18(1):34–39.
   Web of Science ®Google Scholar
• Fang TH, Li WL, Tao NR, et al. Revealing extraordinary intrinsic tensile plasticity in gradient nano-grained copper. Science. 2011;331:1587–1590.
   PubMed Web of Science ®Google Scholar
• Kamikawa N, Huang X, Tsuji N, et al. Strengthening mechanisms in nanostructured high-purity aluminium deformed to high strain and annealed. Acta Mater. 2009;57(14):4198–4208.
   Web of Science ®Google Scholar
• Huang XX, Hansen N, Tsuji N. Hardening by annealing and softening by deformation in nanostructured metals. Science. 2006;312(5771):249–251.
   PubMed Web of Science ®Google Scholar
• Wang B, Xu W, Zhou X, et al. Formation of stable equiaxial nanograined Al via combined plastic deformation. Scr Mater. 2021;203:114054.
   Web of Science ®Google Scholar
• Zhou X, Li X, Lu K. Size dependence of grain boundary migration in metals under mechanical loading. Phys Rev Lett. 2019;122(12):126101.
   PubMed Web of Science ®Google Scholar
• Zhou X, Li X, Lu K. Enhanced thermal stability of nanograined metals below a critical grain size. Science. 2018;360(6388):526–530.
   PubMed Web of Science ®Google Scholar
• Li XY, Jin ZH, Zhou X, et al. Constrained minimal-interface structures in polycrystalline copper with extremely fine grains. Science. 2020;370:831–836.
   PubMed Web of Science ®Google Scholar
• Xu W, Zhang B, Li XY, et al. Suppressing atomic diffusion with the Schwarz crystal structure in supersaturated Al–Mg alloys. Science. 2021;373(6555):683–687.
   PubMed Web of Science ®Google Scholar
• Xu W, Liu XC, Lu K. Strain-induced microstructure refinement in pure Al below 100 nm in size. Acta Mater. 2018;152:138–147.
   Web of Science ®Google Scholar
• Sakai T, Belyakov A, Kaibyshev R, et al. Dynamic and post-dynamic recrystallization under hot, cold and severe plastic deformation conditions. Prog Mater Sci. 2014;60:130–207.
   Web of Science ®Google Scholar
• Liao XZ, Zhou F, Lavernia EJ, et al. Deformation mechanism in nanocrystalline Al: Partial dislocation slip. App Phys Lett. 2003;83(4):632–634.
   Web of Science ®Google Scholar
• Warner DH, Curtin WA, Qu S. Rate dependence of crack-tip processes predicts twinning trends in f.c.c. metals. Nat Mater. 2007;6(11):876–881.
   PubMed Web of Science ®Google Scholar
• Chen MW, Ma E, Hemker KJ, et al. Deformation twinning in nanocrystalline aluminum. Science. 2003;300(5623):1275–1277.
   PubMed Web of Science ®Google Scholar
• Cao B, Daphalapurkar NP, Ramesh KT. Ultra-high-strain-rate shearing and deformation twinning in nanocrystalline aluminum. Meccanica. 2014;50(2):561–574.
   Web of Science ®Google Scholar
• Zhilyaev AP, McNelley TR, Langdon TG. Evolution of microstructure and microtexture in fcc metals during high-pressure torsion. J Mater Sci. 2006;42(5):1517–1528.
   Web of Science ®Google Scholar
• Yamakov V, Wolf D, Phillpot SR, et al. Dislocation processes in the deformation of nanocrystalline aluminium by molecular-dynamics simulation. Nat Mater. 2002;1(1):45–48.
   PubMed Web of Science ®Google Scholar
• Zhao F, Wang L, Fan D, et al. Macrodeformation twins in single-crystal aluminum. Phys Rev Lett. 2016;116(7):075501.
   PubMed Web of Science ®Google Scholar
• Rittner J, Seidman DN, Merkle K. Grain-boundary dissociation by the emission of stacking faults. Phys Rev B. 1996;53(8):R4241–R4244.
   PubMed Web of Science ®Google Scholar
• Xu W, Zhang B, Du K, et al. Thermally stable nanostructured Al-Mg alloy with relaxed grain boundaries. Acta Mater. 2022;226:117640.
   Web of Science ®Google Scholar
• Jin ZH, Li X, Lu K. Formation of stable schwarz crystals in polycrystalline copper at the grain size limit. Phys Rev Lett. 2021;127(13):136101.
   PubMed Web of Science ®Google Scholar
• Yu CY, Kao PW, Chang CP. Transition of tensile deformation behaviors in ultrafine-grained aluminum. Acta Mater. 2005;53(15):4019–4028.
   Web of Science ®Google Scholar
• Morattab S, Ranjbar K, Reihanian M. On the mechanical properties and microstructure of commercially pure Al fabricated by semi-constrained groove pressing. Mater Sci Eng A. 2011;528(22–23):6912–6918.
   Web of Science ®Google Scholar
• Bufford D, Liu Y, Wang J, et al. In situ nanoindentation study on plasticity and work hardening in aluminium with incoherent twin boundaries. Nat Commun. 2014;5:4864.
   PubMed Web of Science ®Google Scholar
• Hu J, Shi Y, Sauvage X, et al. Grain boundary stability governs hardening and softening in extremely fine nanograined metals. Science. 2017;355:1292–1296.
   PubMed Web of Science ®Google Scholar
• Zhou X, Feng Z, Zhu L, et al. High-pressure strengthening in ultrafine-grained metals. Nature. 2020;579(7797):67–72.
   PubMed Web of Science ®Google Scholar
• Huang T, Shuai L, Wakeel A, et al. Strengthening mechanisms and Hall-Petch stress of ultrafine grained Al–0.3%Cu. Acta Mater. 2018;156:369–378.
   Web of Science ®Google Scholar
• Xu C, Horita Z, Langdon TG. The evolution of homogeneity in processing by high-pressure torsion. Acta Mater. 2007;55(1):203–212.
   Web of Science ®Google Scholar
• Edalati K, Ito Y, Suehiro K, et al. Softening of high purity aluminum and copper processed by high pressure torsion. Int J Mater Res. 2009;100(12):1668–1673.
   Web of Science ®Google Scholar
• Huang F, Tao N. Effects of strain rate and deformation temperature on microstructures and hardness in plastically deformed pure aluminum. J Mater Sci Technol. 2011;27(1):1–7.
   Web of Science ®Google Scholar
• Zhao FX, Xu XC, Liu HQ, et al. Effect of annealing treatment on the microstructure and mechanical properties of ultrafine-grained aluminum. Mater Des. 2014;53:262–268.
   Web of Science ®Google Scholar
• Bowen JR, Prangnell PB, Juul Jensen D, et al. Microstructural parameters and flow stress in Al–0.13% Mg deformed by ECAE processing. Mater Sci Eng A. 2004;387-389:235–239.
   Web of Science ®Google Scholar
• Yu CY, Sun PL, Kao PW, et al. Evolution of microstructure during annealing of a severely deformed aluminum. Mater Sci Eng A. 2004;366(2):310–317.
   Web of Science ®Google Scholar
• Shin DH, Park J-J, Kim Y-S, et al. Constrained groove pressing and its application to grain refinement of aluminum. Mater Sci Eng A. 2002;328(1–2):98–103.
   Web of Science ®Google Scholar
• Kamikawa N, Hirochi T, Furuhara T. Strengthening mechanisms in ultrafine-grained and sub-grained high-purity aluminum. Metall Mater Trans A. 2019;50(1):234–248.
   Google Scholar
• Sun P-L, Zhao Y, Tseng T-Y, et al. Annealing behaviour of ultrafine-grained aluminium. Philos Mag. 2013;94(5):476–491.
   Web of Science ®Google Scholar
• Mavlyutov AM, Latynina TA, Murashkin MY, et al. Effect of annealing on the microstructure and mechanical properties of ultrafine-grained commercially pure Al. Phys Solid State. 2017;59(10):1970–1977.
   Web of Science ®Google Scholar
• Porter DA, Easterling KE. Phase transformations in metals and alloys. Revised Reprint, Boca Raton: CRC Press; 2009.
   Google Scholar