The Effect of Ti-Zr Deoxidation on the Mechanical Properties of High Strength Low Alloy Steels

Abstract:

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The uniformity of the mechanical properties, especially elongation and impact toughness, were compared between steel A, which was deoxidized with Ti-Zr, and steel B, which was deoxidized with Al. Microstructural observations, energy dispersive X-ray spectroscopy and X-ray diffraction analyses were conducted using an optical microscope, a scanning electron microscope and a transmission electron microscope, respectively. Results showed that sub-micron and nano-sized complex oxides were obtained by the combined deoxidation of Ti-Zr. The stability of the mechanical properties of steel A was better than that of steel B. The elongation and impact toughness of steel A were enhanced relative to those of steel B. This was attributed to spheroidization and the dispersed distribution of MnS inclusions in the matrix of steel A.

Info:

Periodical:

Advanced Materials Research (Volumes 146-147)

Edited by:

Sihai Jiao, Zhengyi Jiang and Jinglong Bu

Pages:

1878-1884

DOI:

10.4028/www.scientific.net/AMR.146-147.1878

Citation:

W. Y. Lu et al., "The Effect of Ti-Zr Deoxidation on the Mechanical Properties of High Strength Low Alloy Steels", Advanced Materials Research, Vols. 146-147, pp. 1878-1884, 2011

Online since:

October 2010

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$35.00

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