The Effect of Bainitic Transformation Microstructure under Applied Stress on Corrosion Resistance of HQ785 Steel

Abstract:

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In this thesis, based on the low-carbon bainitic steel HQ785, isothermal transformation tests are carried out on the Gleeble-3500 thermo-mechanical simulator under uniaxial external tensile stress state. The fully immersed accelerated corrosion tests for the specimens, with different microstructure after phase transformation are carried out. The corrosion behavior of experimental steel is evaluated, combing with OM, SEM, weight loss method and electrochemical method. The results show that the shape of phase transformation microstructrue varies from granular to lath with the increase of external tensile stress. The corrosion resistance of which is better than that of granular bainite without stress. The sample with rusty layer after full immersion seawater corrosion shows good protectiveness.

Info:

Periodical:

Advanced Materials Research (Volumes 239-242)

Edited by:

Zhong Cao, Xueqiang Cao, Lixian Sun, Yinghe He

Pages:

1591-1596

DOI:

10.4028/www.scientific.net/AMR.239-242.1591

Citation:

Y. H. Wang et al., "The Effect of Bainitic Transformation Microstructure under Applied Stress on Corrosion Resistance of HQ785 Steel", Advanced Materials Research, Vols. 239-242, pp. 1591-1596, 2011

Online since:

May 2011

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Price:

$35.00

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