A model for precipitation strengthening in multi-particle systems

作者: M.R. Ahmadi , E. Povoden-Karadeniz , K.I. Öksüz , A. Falahati , E. Kozeschnik

DOI: 10.1016/J.COMMATSCI.2014.04.025

关键词: MetallurgyFree distanceDislocationPrecipitation hardeningMechanicsPredictive simulationParticle systemPrecipitation (chemistry)Strengthening mechanisms of materialsShearing (physics)Materials science

摘要: … and matrix, we observe an increase of precipitation strengthening with increasing radius. In the model of Gerold and Haberkorn [18], the yield strength increment is caused by the strain …

参考文章(37)
R. Siems, P. Delavignette, S. Amelinckx, Surface effects associated with dislocations in layer crystals physica status solidi (b). ,vol. 2, pp. 636- 660 ,(1962) , 10.1002/PSSB.19620020604
Bernhard Sonderegger, Ernst Kozeschnik, Particle strengthening in fcc crystals with prolate and oblate precipitates Scripta Materialia. ,vol. 66, pp. 52- 55 ,(2012) , 10.1016/J.SCRIPTAMAT.2011.10.003
H. Gleiter, E. Hornbogen, Theorie der Wechselwirkung von Versetzungen mit kohärenten geordneten Zonen (I) Physica Status Solidi B-basic Solid State Physics. ,vol. 12, pp. 235- 250 ,(1965) , 10.1002/PSSB.19650120122
A. G. Crocker, M. Doneghan, K. W. Ingle, The structure of small vacancy clusters in face-centred-cubic metals Philosophical Magazine. ,vol. 41, pp. 21- 32 ,(1980) , 10.1080/01418618008241828
Charles H Henager Jr, Richard G Hoagland, Dislocation core fields and forces in FCC metals Scripta Materialia. ,vol. 50, pp. 1091- 1095 ,(2004) , 10.1016/J.SCRIPTAMAT.2003.11.054
J.S. Hou, J.T. Guo, Influence of thermal exposure on the microstructures and mechanical properties of a superalloy Journal of Materials Engineering and Performance. ,vol. 15, pp. 67- 75 ,(2006) , 10.1361/105994906X83501
P. B. Hirsch, A. Kelly, Stacking-fault strengthening Philosophical Magazine. ,vol. 12, pp. 881- 900 ,(1965) , 10.1080/14786436508228118
Min Song, Modeling the hardness and yield strength evolutions of aluminum alloy with rod/needle-shaped precipitates Materials Science and Engineering A-structural Materials Properties Microstructure and Processing. ,vol. 443, pp. 172- 177 ,(2007) , 10.1016/J.MSEA.2006.08.025
N F Mott, F R N Nabarro, An attempt to estimate the degree of precipitation hardening, with a simple model Proceedings of the Physical Society. ,vol. 52, pp. 86- 89 ,(1940) , 10.1088/0959-5309/52/1/312