ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Dynamic recrystallization, on which grain size of the final forging depends mainly, is one ofthe most important microstructure evolution processes in moderate-to-low stacking fault energy metals. Inthis paper, the process of dynamic recrystallization is simulated by numerical method. The paper first gives avisco-plastic model considering dynamic recrystallization in detail; secondly gives the applied finite elementformulation and compiles an finite element program in Visual Fortran 6.5 based on the updated Lagrangianformulation rigid-plastic finite element; thirdly the material parameters are identified through inverseanalysis, based on the compiled finite element program and the developed global optimization method; atlast, the compiled finite element program is applied to simulate the microstructure evolution caused bydynamic recrystallization, the calculated result agrees with the experimental result relatively well
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/54/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.340-341.779.pdf
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