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| Analysis of difference in impact energy of Charpy notch impact test for Q345B hot-rolled steel strip |
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Abstract The difference in impact energy of Q345B hot-rolled steel strip was explored by macro-morphology, chemical composition, microstructure, scanning electron microscopy and spectroscopy analysis. The results show that: there is a big gap between the Ak values of this two block steel bands, the basically reasons are the diverse chemistry component of steel bands and the different nonmetal lards and their microstructures.
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Received: 11 February 2010
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2010, Vol. 28 
