Paper Title:
Effects of Chemical Composition on the Impact Properties of A533B Steels
  Abstract

In order to estimate the long life integrity of vessel steels with considering various material compositions and irradiation conditions, it is necessary to understand physical mechanisms of the degradation of mechanical properties. In this research, chemical composition effects were investigated for Reactor Pressure Vessel Steels (RPVS) to apply small specimen test technique to surveillance test method. All specimens used in this study were machined from the A533B plate material, which are standard, low Mn, high Cu, high P, and high Cu and high P steels. Tensile strength is increased by phosphorous and copper additions. Charpy tests were carried out at temperature from 73 K to 473 K. The ductile to brittle transition temperature (DBTT) is shifted to higher temperatures with phosphorus additions accompanied by the reduction of the upper shelf energy (USE). The fracture mode of P-added A533B steels at temperatures in the lower shelf energy (LSE) region is intergranular cracking. Test results were discussed in view of the differences on elements of Cu, Mn and P.

  Info
Periodical
Materials Science Forum (Volumes 654-656)
Main Theme
Edited by
Jian-Feng Nie and Allan Morton
Pages
2895-2898
DOI
10.4028/www.scientific.net/MSF.654-656.2895
Citation
B. J. Kim, R. Kasada, A. Kimura , "Effects of Chemical Composition on the Impact Properties of A533B Steels", Materials Science Forum, Vols. 654-656, pp. 2895-2898, 2010
Online since
June 2010
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Price
$32.00
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