Homogeneous Abnormal Grain Growth in Polycrystalline Materials

Giuseppe Carlo Abbruzzese; Cristina Forzanti

doi:10.4028/www.scientific.net/MSF.706-709.1355

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Homogeneous Abnormal Grain Growth in Polycrystalline Materials
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Interface Motion and Interface Mobility of the Partitioning Phase Transformations in Fe-Mn-C and Fe-C Alloys: A Cyclic Phase Transformation Approach
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HomeMaterials Science ForumMaterials Science Forum Vols. 706-709Homogeneous Abnormal Grain Growth in...

Homogeneous Abnormal Grain Growth in Polycrystalline Materials

Abstract:

The controversy about the start up of the abnormal growth as heterogeneously engendered in the microstructure or produced by peculiar continuous incubation process has still not been solved. In this work the statistical theory of grain growth has been applied to treat the case of grain growth in the presence of an homogeneously unstable Zener drag. By the simulations presented it will be shown as abnormal grain growth is a result out of a continuous and homogeneous process without requiring any heterogeneity in the microstructure presumed to give local advantages to some grains. The mechanism by which during an incubation period the preconditions for the unstable growth are built up in the microstructure is clarified and discussed. Moreover the peculiar shape of Grain Size Distribution (GSD) approaching the “structural instability” will be also analytically defined and compared with experimental results obtained in a grain oriented Silicon Iron just before the onset of abnormal grain growth.

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Periodical:

Materials Science Forum (Volumes 706-709)

Pages:

1355-1360

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.706-709.1355

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Online since:

January 2012

Authors:

Giuseppe Carlo Abbruzzese, Cristina Forzanti

Keywords:

Abnormal Grain Growth, GSD, Particle Drag, Solute Drag, Statistical Model

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References

[1] G. Abbruzzese, in Computer Simulation of Microstructural Evolution, Ed. D.J. Srolovitz, The Metallurgical Society, Warrendale, 1986, p.61.

Google Scholar

[2] G. Abbruzzese, Acta Metall. Vol. 33 (1985), p.1329.

Google Scholar

[3] G. Abbruzzese, M. Buccioni, in Recrystallization and Grain Growth III, Trans. Tech. Publ. 2007, vol. 558-559 (2), pp.1005-1012.

Google Scholar

[4] G. Abbruzzese, Proceedings of Int. Conf. ReX-GG 4, Sheffield -2010 , Trans Tech Publications (TTP) Inc, in press.

Google Scholar

[5] G. Abbruzzese, R. Brandt, K. Lucke, in Grain Growth in Polycrystalline Materials III, Ed. H. Weiland, B. Adams and A.D. Rollett, The Minerals, Metals & Materials Society, Pittsburgh, 1998, p.263.

Google Scholar

[6] E.E. Underwood-Quantitative Microscopy, R. T. De Hoff F.N. Rhines, Ed. Mc Graw Hill 1968, pp.162-168.

Google Scholar