Paper Title:
The Effect of Large Reduction on the Microstructure and Properties for As-Hot Rolled Dual-Phase Nb-Bearing Steel
  Abstract

The effect of reduction on the microstructure refinement and mechanical properties of the as-hot rolled dual-phase Nb-bearing steel were studied at laboratory. It is found that the dual-phase steel displays clearly classic dual phase morphology which is ferrite and martensite or bainsite, and the fine island or lath martinsite is dispersed on the matrix of ferrite by the observation of microstructure. The grain can be refined, and the increased precipitated second particles are fined and dispersed with the increasing of reduction. The mechanical properties determination result shows that the mechanical properties have greatly improved by large reduction. The tensile strength obtained in the laboratory is up to 680MPa, the ratio of yield strength and tensile strength is low, and the elongation is better.

  Info
Periodical
Advanced Materials Research (Volumes 284-286)
Chapter
Iron and Steel
Edited by
Xiaoming Sang, Pengcheng Wang, Liqun Ai, Yungang Li and Jinglong Bu
Pages
1101-1105
DOI
10.4028/www.scientific.net/AMR.284-286.1101
Citation
H. M. Zhang, L. F. Qiao, "The Effect of Large Reduction on the Microstructure and Properties for As-Hot Rolled Dual-Phase Nb-Bearing Steel", Advanced Materials Research, Vols. 284-286, pp. 1101-1105, 2011
Online since
July 2011
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Price
$32.00
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