Deformation Behavior Analysis of Harmonic Structure Materials by Multi-Scale Finite Element Analysis

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The harmonic structure materials consist of coarse-grained areas enclosed in a three-dimensional continuously connected network of ultrafine-grained area. The concept of harmonic structure design has been successfully applied to a variety of pure metals and alloys by mechanical milling (MM) and subsequent powder metallurgy (PM) process. In harmonic structure material, core region with coarse grains maintains a high ductility while the shell region with ultrafine grains contributes for a higher strength. Therefore, the material with harmonic structure design can achieve both strength and ductility simultaneously. In this research, the SUS304L grade stainless steel has been used as a model material to understand and validate the response of the harmonic structure materials towards the applied external loads. The numerical simulation of multi-scale FEA (Finite Element Analysis) was carried out, and it was confirmed that microscopic deformation and the macroscopic tensile strength can be characterized by the present approach.

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Periodical:

Edited by:

Zou Jianxin

Pages:

853-857

Citation:

H. Yu et al., "Deformation Behavior Analysis of Harmonic Structure Materials by Multi-Scale Finite Element Analysis", Advanced Materials Research, Vol. 1088, pp. 853-857, 2015

Online since:

February 2015

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$41.00

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[1] K. Ameyama, H. Fujiwara, Creation of Harmonic Structure Materials with Outstanding Mechanical Properties, Materials Science Forum, 2012, 706-709, pp.9-16.

DOI: https://doi.org/10.4028/www.scientific.net/msf.706-709.9

[2] Z. Zhang, Study on Harmonic Structure Design and Deformation Mechanism in SUS304L Austenitic Stainless Steel, Doctor of Philosophy, Ritsumeikan University. Japan. Dec (2013).

[3] I. Watanabe, K. Terada , E A de Souza Neto, D. Peric, Characterization of macroscopic tensile strength of polycrystalline metals with two-scale finite element analysis, Journal of the Mechanics and Physics of Solids, 2008, 56, pp.1105-1125.

DOI: https://doi.org/10.1016/j.jmps.2007.06.001

[4] E.O. Hall, The Deformation and Ageing of Mild Steel: III Discussion of Results, Proc. Phys. Soc. London, Vol. 64, 1951, pp.747-753.

DOI: https://doi.org/10.1088/0370-1301/64/9/303

[5] N.J. Petch, The Cleavage Strength of Polycrystals, J. Iron Steel Inst. London, Vol. 173, 1953, pp.25-28.