Numerical simulation of temperature distribution using finite difference equations and estimation of the grain size during friction stir processing
作者： H.S. Arora , H. Singh , B.K. Dhindaw
DOI: 10.1016/J.MSEA.2012.02.081
关键词: Thermomechanical processing 、 Grain growth 、 Friction stir processing 、 Grain size 、 Finite element method 、 Metallurgy 、 Grain boundary 、 Finite difference 、 Materials science 、 Composite material 、 Magnesium alloy
摘要: Abstract The present investigation is aimed at developing a heat flow model to simulate temperature history during friction stir processing (FSP). A new approach of implicit form finite difference equations solved using MATLAB code was used. magnesium based alloy AE42 processed (FSPed) different FSP parameters and cooling conditions. Temperature continuously recorded in the nugget zone data acquisition system k type thermocouples. developed validated conditions experimentation. locations instants time further utilized for estimation grain growth rate final average size FSPed specimen. regression equation relating size, maximum developed. metallurgical characterization done optical microscopy, SEM, FIB-SIM analysis. simulated profiles were found be good agreement with experimental results. presence fine precipitate particles generated situ investigated also contributed evolution structure through Zener pining effect boundaries.
elsevier.com
sci-hub.se 参考文章(39)
N. Saito, I. Shigematsu, T. Komaya, T. Tamaki, G. Yamauchi, M. Nakamura, Grain refinement of 1050 aluminum alloy by friction stir processing Journal of Materials Science Letters. ,vol. 20, pp. 1913- 1915 ,(2001) , 10.1023/A:1012882413401
J. Gerald Byrne, Recovery, recrystallization, and grain growth Macmillan. ,(1965)
Investigations and applications of severe plastic deformation Kluwer Academic Publishers. ,(2000) , 10.1007/978-94-011-4062-1
Y. J. Kwon, N. Saito, I. Shigematsu, Friction stir process as a new manufacturing technique of ultrafine grained aluminum alloy Journal of Materials Science Letters. ,vol. 21, pp. 1473- 1476 ,(2002) , 10.1023/A:1020067609451
S. X. McFadden, R. S. Mishra, R. Z. Valiev, A. P. Zhilyaev, A. K. Mukherjee, Low-temperature superplasticity in nanostructured nickel and metal alloys Nature. ,vol. 398, pp. 684- 686 ,(1999) , 10.1038/19486
Anthony D Rollett, Gregory S Rohrer, F John Humphreys, Recrystallization and Related Annealing Phenomena ,(1996)
C.C. Koch, D.G. Morris, K. Lu, A. Inoue, Ductility of Nanostructured Materials Mrs Bulletin. ,vol. 24, pp. 54- 58 ,(1999) , 10.1557/S0883769400051551
X.K Zhu, Y.J Chao, Numerical simulation of transient temperature and residual stresses in friction stir welding of 304L stainless steel Journal of Materials Processing Technology. ,vol. 146, pp. 263- 272 ,(2004) , 10.1016/J.JMATPROTEC.2003.10.025
J. Schröder, K.U. Kainer, Magnesium-base hybrid composites prepared by liquid infiltration Materials Science and Engineering A-structural Materials Properties Microstructure and Processing. ,vol. 135, pp. 33- 36 ,(1991) , 10.1016/0921-5093(91)90532-R
P. Abachi, K. Purazrang, Comparison of experimental and analytical fracture toughness values of SiCP/QE22 Mg-alloy composites Materials & Design. ,vol. 27, pp. 520- 525 ,(2006) , 10.1016/J.MATDES.2004.11.017