Paper Title:
Effects of Solution Temperature on Microstructure and Tensile Properties of Casting Duplex Stainless Steel
  Abstract

In this paper, effects of solid solution treatment temperature on microstructure and tensile properties of casting SAF 2507 super duplex stainless steel were researched by means of optical microscope (OM), scanning electron microscope (SEM), energy dispersive spectrometer (EDS) and tensile test. The results indicate that the amount of γ phase increases according to a linear relationship f(g ) = -0.134T +159.94 during the temperatures from 1100°C to 1250°C. Tensile properties of casting SAF 2507 super duplex stainless steel fluctuate with solution temperature change. Austenitic grain size and morphology are the most important factors on tensile property. The tensile strength is the highest owing to the finest austenitic grain at the solution temperature of 1150°C. The elongation is related to the fracture mode. At 1100 , elongation ration is highest because of the ductile fracture.

  Info
Periodical
Advanced Materials Research (Volumes 146-147)
Edited by
Sihai Jiao, Zhengyi Jiang and Jinglong Bu
Pages
818-824
DOI
10.4028/www.scientific.net/AMR.146-147.818
Citation
H. L. Xiang, D. Liu, F. S. He, "Effects of Solution Temperature on Microstructure and Tensile Properties of Casting Duplex Stainless Steel", Advanced Materials Research, Vols. 146-147, pp. 818-824, 2011
Online since
October 2010
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Price
$32.00
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