The Effect of Rolling Temperature on Grain Size and Toughness in Hot Rolled Q345E H-Beam Steel

Li Ping Sun; Guo Hui Zhu; Jun Xing; Qi Wei Chen

doi:10.4028/www.scientific.net/SSP.279.26

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HomeSolid State PhenomenaSolid State Phenomena Vol. 279The Effect of Rolling Temperature on Grain Size...

The Effect of Rolling Temperature on Grain Size and Toughness in Hot Rolled Q345E H-Beam Steel

Abstract:

The effect of enter rolling temperatures on the grain size and toughness was investigated in Q345E H-beam steels. The experimental results shown that the grain size exhibited a complicated phenomenon with rolling temperature instead of refining as the temperature decreased as expected. It would be interpreted by the behaviors of deformation and recrystallization in austenite during rolling. The toughness is not only depended on the average grain size but also on the distribution of grain size as well as morphology of pearlite. The toughness would be decreased by the mixed grain size.

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Periodical:

Solid State Phenomena (Volume 279)

Pages:

26-29

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.279.26

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Online since:

August 2018

Authors:

Li Ping Sun, Guo Hui Zhu*, Jun Xing, Qi Wei Chen

Keywords:

Grain Size, H Beam Steel, Rolling Temperature, Toughness

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