Understanding the effect of nitrogen in austenitic stainless steel on the intergranular stress corrosion crack growth rate in high temperature pure water
作者： S Roychowdhury , V Kain , S Neogy , D Srivastava , GK Dey
DOI: 10.1016/J.ACTAMAT.2011.09.053
关键词:
摘要: Abstract Understanding the effect of nitrogen content on crack growth rate (CGR) due to intergranular stress corrosion cracking (IGSCC) in high temperature (288 °C) pure water, non-sensitised and strain-hardened stainless steel (SS) type 304 LN was focus this study. Non-sensitised SS containing two different levels (0.08 0.16 wt.%) solution annealed condition by cross-rolling at 200 °C (warm rolling). It has earlier been reported that with a higher level warm rolled CGR water. Tensile testing carried out using both as well 288 °C. Samples were prepared for transmission electron microscopy (TEM) from tensile tested (at 288 °C) specimens. TEM studies indicated twinning shear band formation major modes deformation rolling these feature observed terminate grain boundaries, leading regions strain stresses boundaries. Higher boundary making more susceptible IGSCC, resulting values. At 288 °C dislocation entanglement cross-slip predominant deformation.
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