2010
DOI: 10.4028/www.scientific.net/msf.654-656.162
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Role of Microstructure in Susceptibility of X70 Pipeline Steel to Hydrogen Embrittlement

Abstract: Abstract. The effect of phases and steel processing on hydrogen uptake (diffusible and residual), surface and internal damage were evaluated using optical and scanning electron microscopy. The results have shown the fastest formation of blisters in ferrite-pearlite microstructure of strip, followed by equaixed ferrite-pearlite microstructure in normalised condition, then by ferrite-bainite microstructure. No blistering was observed in heat affected zone samples for up to 24 hrs charging. Analysis of hydrogen-i… Show more

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