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Microstructure and Precipitation of a High Strength Microalloyed Steel

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Abstract:

Microstructure and precipitation of a Ti-Nb microalloyed high-strength steel were studied. The objective of the study is to examine the factors affecting yield strength and the effect of processing temperatures on microstructure and precipitation. The research results indicate that the dominant factors responsible for yield strength are fine ferrite grains and fine-scale carbonitride precipitatates, which are affected by processing temperatures. The influence of reheating temperature on precipitates was analyzed. Moreover, the optimum reheating temperatures is suggested for Ti-Nb microalloyed high-strength steel.

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Periodical:

Applied Mechanics and Materials (Volume 508)

Pages:

12-15

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.508.12

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Online since:

January 2014

Authors:

Hai Lin Yang, Guang Xu*, Yi Zhang, Min Wang, Ming Xing Zhou

Keywords:

Grain Size, Precipitation, Ti-Nb Microalloyed Steel, Yield Strength

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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