Hot plasticity of microalloyed pipe steel in continuous casting and hot rolling |
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| Authors: | N G Kolbasnikov M A Matveev O G Zotov V V Mishin P A Mishnev S V Nikonov |
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| Affiliation: | 1. St. Petersburg State Polytechnic University, St. Petersburg, Russia
2. OAO Severstal’, Cherepovets, Russia
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| Abstract: | The influence of continuous casting and hot rolling (on a broad-strip 2000 mill) on the hot plasticity of microalloyed pipe steel (strength category X42) is investigated. A Gleeble 3800 system is used for physical modeling of the hot plastic deformation. The temperature intervals corresponding to loss of plasticity are determined in different conditions of slab cooling during continuous casting. In subsequent rolling, the loss of plasticity typical of cooling in the continuous-casting machine is not seen, and the steel is highly plastic. |
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