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Effects of Continuous Annealing Process on Microstructures and Properties of C-Mn-Si Bearing Cold-Rolled TRIP Steel

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Abstract:

Effects of continuous annealing process on microstructure and properties of Si based cold-rolled TRIP Steel were studied. The results show that the TRIP effect is more obvious on the condition of 800°C with 120s annealing process and 400°C with 520s aging treatment than others progress. The yield strength of the tested steel is 405MPa, tensile strength is 670MPa, elongation is 32% and strain hardening exponent is 0.230. The microstructures are ferrite, bainite and retained austenite and the volume fraction of retained austenite for the tested steel is 9.20%.

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Periodical:

Advanced Materials Research (Volumes 602-604)

Pages:

472-477

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.602-604.472

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Online since:

December 2012

Authors:

Li Hui Wang, Di Tang, Hai Tao Jiang, Ji Bin Liu, Yu Chen

Keywords:

Annealing Process, Microstructure, Property, Retained Austenite, TRIP Steel

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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