Grain boundary sliding at low temperatures
Roberto B. Figueiredo
download PDFAbstract. Grain boundary sliding plays a key role on the high temperature deformation of fine grained materials. This mechanism is related to a high strain rate sensitivity of approximately 0.5 and usually gives rise to high superplastic elongations. The rate controlling equation for the mechanism of grain boundary sliding has shown good agreement with experimental data for multiple materials, with different grain sizes and tested at different strain rates. However, the predictive ability of the rate controlling equation seems to deteriorate at low temperatures. Although there are experimental evidences of high strain-rate sensitivities in ultrafine grained materials tested at low temperatures, this parameter does not reach values near 0.5 and also there seems to be disagreement in stress level in many conditions. The present overview evaluates the occurrence of grain boundary sliding in ultrafine grained materials at low temperatures considering an adapted rate controlling equation which display good agreement with experimental data. A gradual transition from grain refinement softening at high temperature to grain refinement hardening at low temperatures and a gradual increase in strain rate sensitivity with increasing temperature are observed.
Keywords
Deformation Mechanisms, Grain Boundary Sliding, Superplasticity
Published online , 8 pages
Copyright © 2023 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: Roberto B. Figueiredo, Grain boundary sliding at low temperatures, Materials Research Proceedings, Vol. 32, pp 227-234, 2023
DOI: https://doi.org/10.21741/9781644902615-26
The article was published as article 26 of the book Superplasticity in Advanced Materials
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
References
[1] J.E. Bird, A.K. Mukherjee, J.E. Dorn, Quantitative Relation Between Properties and Microstructure, Israel Universities Press, Jerusalem, Israel, 1969.
[2] R.B. Figueiredo, T.G. Langdon, Analysis of the creep behavior of fine-grained AZ31 magnesium alloy, Materials Science and Engineering: A 787 (2020) 139489. https://doi.org/10.1016/j.msea.2020.139489
[3] K. Kitazono, E. Sato, K. Kuribayashi, Internal stress superplasticity in polycrystalline AZ31 magnesium alloy, Scripta Materialia 44(12) (2001) 2695-2702. https://doi.org/10.1016/S1359-6462(01)00967-8
[4] H. Somekawa, K. Hirai, H. Watanabe, Y. Takigawa, K. Higashi, Dislocation creep behavior in Mg-Al-Zn alloys, Materials Science and Engineering: A 407(1) (2005) 53-61. https://doi.org/10.1016/j.msea.2005.06.059
[5] J.A. del Valle, M.T. Pérez-Prado, O.A. Ruano, Deformation mechanisms responsible for the high ductility in a Mg AZ31 alloy analyzed by electron backscattered diffraction, Metallurgical and Materials Transactions A 36(6) (2005) 1427-1438. https://doi.org/10.1007/s11661-005-0235-8
[6] S. Spigarelli, M. El Mehtedi, D. Ciccarelli, M. Regev, Effect of grain size on high temperature deformation of AZ31 alloy, Materials Science and Engineering: A 528(22) (2011) 6919-6926. https://doi.org/10.1016/j.msea.2011.05.032
[7] H. Watanabe, H. Tsutsui, T. Mukai, M. Kohzu, S. Tanabe, K. Higashi, Deformation mechanism in a coarse-grained Mg-Al-Zn alloy at elevated temperatures, International Journal of Plasticity 17(3) (2001) 387-397. https://doi.org/10.1016/S0749-6419(00)00042-5
[8] R.B. Figueiredo, T.G. Langdon, Evaluating the superplastic flow of a magnesium AZ31 alloy processed by equal-channel angular pressing, Metallurgical and Materials Transactions A 45(8) (2014) 3197-3204. https://doi.org/10.1007/s11661-013-1920-7
[9] R.B. Figueiredo, T.G. Langdon, Developing superplasticity in a magnesium AZ31 alloy by ECAP, Journal of Materials Science 43(23-24) (2008) 7366-7371. https://doi.org/10.1007/s10853-008-2846-0
[10] H. Watanabe, M. Fukusumi, Mechanical properties and texture of a superplastically deformed AZ31 magnesium alloy, Materials Science and Engineering: A 477(1) (2008) 153-161. https://doi.org/10.1016/j.msea.2007.05.012
[11] M.L. Olguín-González, D. Hernández-Silva, M.A. García-Bernal, V.M. Sauce-Rangel, Hot deformation behavior of hot-rolled AZ31 and AZ61 magnesium alloys, Materials Science and Engineering: A 597 (2014) 82-88. https://doi.org/10.1016/j.msea.2013.12.027
[12] S. Spigarelli, O.A. Ruano, M. El Mehtedi, J.A. del Valle, High temperature deformation and microstructural instability in AZ31 magnesium alloy, Materials Science and Engineering: A 570 (2013) 135-148. https://doi.org/10.1016/j.msea.2013.01.060
[13] X. Wu, Y. Liu, Superplasticity of coarse-grained magnesium alloy, Scripta Materialia 46(4) (2002) 269-274. https://doi.org/10.1016/S1359-6462(01)01234-9
[14] K. Edalati, A. Bachmaier, V.A. Beloshenko, Y. Beygelzimer, V.D. Blank, W.J. Botta, K. Bryła, J. Čížek, S. Divinski, N.A. Enikeev, Y. Estrin, G. Faraji, R.B. Figueiredo, M. Fuji, T. Furuta, T. Grosdidier, J. Gubicza, A. Hohenwarter, Z. Horita, J. Huot, Y. Ikoma, M. Janeček, M. Kawasaki, P. Král, S. Kuramoto, T.G. Langdon, D.R. Leiva, V.I. Levitas, A. Mazilkin, M. Mito, H. Miyamoto, T. Nishizaki, R. Pippan, V.V. Popov, E.N. Popova, G. Purcek, O. Renk, Á. Révész, X. Sauvage, V. Sklenicka, W. Skrotzki, B.B. Straumal, S. Suwas, L.S. Toth, N. Tsuji, R.Z. Valiev, G. Wilde, M.J. Zehetbauer, X. Zhu, Nanomaterials by severe plastic deformation: review of historical developments and recent advances, Materials Research Letters 10(4) (2022) 163-256. https://doi.org/10.1080/21663831.2022.2029779
[15] R.B. Figueiredo, T.G. Langdon, Deformation mechanisms in ultrafine-grained metals with an emphasis on the Hall-Petch relationship and strain rate sensitivity, Journal of Materials Research and Technology 14 (2021) 137-159. https://doi.org/10.1016/j.jmrt.2021.06.016
[16] R.B. Figueiredo, K. Edalati, T.G. Langdon, Effect of creep parameters on the steady-state flow stress of pure metals processed by high-pressure torsion, Materials Science & Engineering A 835 (2022) 142666. https://doi.org/10.1016/j.msea.2022.142666
[17] R.B. Figueiredo, T.G. Langdon, Effect of grain size on strength and strain rate sensitivity in metals, Journal of Materials Science 57 (2022) 5210-5229. https://doi.org/10.1007/s10853-022-06919-0
[18] A.P. Carvalho, R.B. Figueiredo, An Overview of the Effect of Grain Size on Mechanical Properties of Magnesium and Its Alloys, Materials Transactions advpub (2023). https://doi.org/10.2320/matertrans.MT-MF2022005
[19] A.P. Carvalho, R.B. Figueiredo, The Effect of Ultragrain Refinement on the Strength and Strain Rate Sensitivity of a ZK60 Magnesium Alloy, Advanced Engineering Materials 24(3) (2022) 2100846. https://doi.org/10.1002/adem.202100846
[20] R.B. Figueiredo, W. Wolf, T.G. Langdon, Effect of grain size on strength and strain rate sensitivity in the CrMnFeCoNi high-entropy alloy, Journal of Materials Research and Technology 20 (2022) 2358. https://doi.org/10.1016/j.jmrt.2022.07.181
[21] R.B. Figueiredo, M. Kawasaki, T.G. Langdon, Seventy years of Hall-Petch, ninety years of superplasticity and a generalized approach to the effect of grain size on flow stress, Progress in Materials Science 137 (2023) 101131. https://doi.org/10.1016/j.pmatsci.2023.101131
[22] V. Maier-Kiener, B. Schuh, E.P. George, H. Clemens, A. Hohenwarter, Insights into the deformation behavior of the CrMnFeCoNi high-entropy alloy revealed by elevated temperature nanoindentation, Journal of Materials Research 32(14) (2017) 2658-2667. https://doi.org/10.1557/jmr.2017.260
[23] H. Shahmir, J. He, Z. Lu, M. Kawasaki, T.G. Langdon, Evidence for superplasticity in a CoCrFeNiMn high-entropy alloy processed by high-pressure torsion, Materials Science and Engineering: A 685 (2017) 342-348. https://doi.org/10.1016/j.msea.2017.01.016
[24] Z. Han, W. Ren, J. Yang, Y. Du, R. Wei, C. Zhang, Y. Chen, G. Zhang, The deformation behavior and strain rate sensitivity of ultra-fine grained CoNiFeCrMn high-entropy alloys at temperatures ranging from 77 K to 573 K, Journal of Alloys and Compounds 791 (2019) 962-970. https://doi.org/10.1016/j.jallcom.2019.03.373
