The Influence of N Content on the Microstructure and Mechanical Property of Low Cost Q345B

Xue Gang Xiong; Xu Luo; Xiao Yu Ye

doi:10.4028/www.scientific.net/AMR.1079-1080.70

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 1079-1080The Influence of N Content on the Microstructure...

The Influence of N Content on the Microstructure and Mechanical Property of Low Cost Q345B

Abstract:

Pangang Group developedproduction process of low cost medium-Ti Q345B. And the influence of N content on the precipitation of Ti wasresearched. Theoretically, the optimum N contentfor medium-Ti Q345B should be within 50ppm. Thenindustrial production of Q345B with two different N contents was carried out. The results implicated that the microstructure,yield strength and elongation of Q345B metthe requirements when N content waswithin 50ppm; and when N content wentbeyond 50ppm, trace of bainite microstructure appeared, theelongation was close to the lowerlimit, and microscale TiN were observed inlarge amout under SEM.

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Periodical:

Advanced Materials Research (Volumes 1079-1080)

Pages:

70-74

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1079-1080.70

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Online since:

December 2014

Authors:

Xue Gang Xiong, Xu Luo, Xiao Yu Ye

Keywords:

Elongation, Liquid Chromatography TiN, N Content, Ti Microalloying

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References

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