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Recrystallization and Structure of Microalloyed High Strength Steel Sheet After Cold Rolling

Run Wu

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Abstract

The mechanical properties of niobium-microalloyed high strength steel after cold-rolling can be improved by recrystallization annealing.The annealing experiments were carried out under the condition of different heat treatment parameters: annealing temperature and time and then the microstructure transformation was investigated.The mathematical model about its microstructure evolution was built based on these experimental data.The models can be used to predict the steel′s annealing microstructure transformation,and to control the recrystallization annealing in the production.

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What this paper is about

The mechanical properties of niobium-microalloyed high strength steel after cold-rolling can be improved by recrystallization annealing.The annealing experiments were carried out under the condition of different heat treatment parameters: annealing temperature and time and then the microstructure transformation was investigated.The mathematical model about its microstructure evolution was built based on these experimental data.The models can be used to predict the steel′s annealing microstructure transformation,and to control the recrystallization annealing in the production.

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Available abstract

The mechanical properties of niobium-microalloyed high strength steel after cold-rolling can be improved by recrystallization annealing.The annealing experiments were carried out under the condition of different heat treatment parameters: annealing temperature and time and then the microstructure transformation was investigated.The mathematical model about its microstructure evolution was built based on these experimental data.The models can be used to predict the steel′s annealing microstructure transformation,and to control the recrystallization annealing in the production.

Key concepts: Recrystallization (geology), Microstructure, Annealing (glass), Materials science, Metallurgy, Niobium, Microalloyed steel, Hot rolled

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