Influence of Vanadium on Microstructures and Mechanical Properties of High Strength Normalized Steel

Ming Wei Tong; Ze Xi Yuan; Kai Guang Zhang

doi:10.4028/www.scientific.net/AMR.535-537.628

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 535-537Influence of Vanadium on Microstructures and...

Influence of Vanadium on Microstructures and Mechanical Properties of High Strength Normalized Steel

Abstract:

Considering the specialities of high strength normalized steel, the main roles of vanadium in normalized steel were investigated. The results show that adding vanadium can improve the strength and deteriorate the impact energy, but for vanadium steel, the strengths increase and the impact energies have no changing regulation with increasing vanadium. The microstructures of experimental steels are composed of polygonal ferrite and pearlite, vanadium can not refine ferrite grain size, most of them dissolve into the matrix, and the forms of precipitation in vanadium steel are complex carbonitrides. Grain refinement plays a greater role in improving the low temperature toughness of high strength normalized steels, the strength index is firstly considered in designing this kind of steels.

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Periodical:

Advanced Materials Research (Volumes 535-537)

Pages:

628-632

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.535-537.628

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Online since:

June 2012

Authors:

Ming Wei Tong, Ze Xi Yuan, Kai Guang Zhang

Keywords:

Mechanical Property, Microalloyed Steel, Microstructure, Normalizing, Vanadium

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