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Investigation of Micromechanical Deformation Mechanisms in Sinter Powder Metals

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Abstract:

Sintered powder metals have found wide applications in industry. However, the constitutive description under complex loading conditions is an open issue. In the present work, the inelastic deformation mechanisms of sintered iron are investigated using nano-indentation technique. With help of the finite element method, the material behaviour of powder particles can be identified from extensive nano-indentations. Furthermore, the micro-hardness of pre-strained specimens has been investigated as a function of the macro strains up to 14%. Nano-indentation measurements provide a linear correlation between the micro strains in power particles and macro deformation. Ca. 55% of total inelastic deformations are contributed from powder particles and the rest is caused by the void growth as well as micro crack propagation. In sintered metals the micro porosity plays an important role in inelastic deformations.

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Periodical:

Advanced Materials Research (Volume 668)

Pages:

351-355

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.668.351

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Online since:

March 2013

Authors:

Jin Mu Chen, Huang Yuan, Markus Schneider

Keywords:

Micro-Damage Evolution, Nano-Indentation, Plastic Deformation, Sintered Metal

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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References

[1] M. Schneider, H. Yuan: DVM-ArbeitskreisBruchvorgangeVol. 42 (2010), pp.61-72.

Google Scholar

[2] P.M. Machmeier, T. Matuszewski: Advances in Powder Metallurgy and Particulate MaterialsVol. 4 (1993), pp.109-129.

Google Scholar

[3] N. Chawla, X. Deng: Materials Science and Engineering. Vol. 390(2005), pp.98-112.

Google Scholar

[4] M. Dao, N. Chollacoop: Acta material Vol. 49 (2001), pp.3899-3918.

Google Scholar

[5] Y.T. Cheng, C.M. Cheng: Appied Physics Letters Vol. 73 (1998), pp.614-616.

Google Scholar

[6] M. Lichinchi, C. Lenardi, J. Haupt, R. Vitali: Thin Solid Films Vol. 312 (1998), pp.240-248.

DOI: 10.1016/s0040-6090(97)00739-6

Google Scholar

[7] H. Gao, Y. Huang, W.D. Nix, J.W. Hutchinson: Journal of Mechanic Physics Solids Vol. 47 (1999), pp.1239-1263.

Google Scholar

[8] M. Schneider, H. Yuan: Computational Materials Science Vol. 57 (2012), pp.48-58.

Google Scholar

[9] W.C. Oliver, G.M. Pharr: Journal of Materials Research Vol. 7 (1992), pp.1564-1583.

Google Scholar

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