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| Effect of “dummy-off” on microstructure evolution and mean flow stress(MFS) of Nb,V bearing steel by numerical modeling in CSP production |
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Abstract After microstructure evolution model was validated by measured rolling data, effect of F2 or F3 “dummy-off “on microstructure evolution and mean flow stress(MFS) of Nb，V bearing steel produced by CSP was simulated in this paper. Simulating results show that the mixed-grain could be avoided by using F2 “dummy-off” in comparison with conventional rolling schedule while the same pass rolling temperature was maintained. Mixed grain may be produced when F3 “dummy-off “ was used, and MFS varied much more than that when F2 “dummy-off “ was used.
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Received: 19 August 2009
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2010, Vol. 45 
