Metallurgical and Stress State Factors Which Affect the Creep and Fracture Behavior of 9% Cr Steels

<div>Number density of inclusions for two different but code acceptable Grade 91 steels. A higher density of MnS was measured in the creep damage susceptible steel which contained 0.009 wt.% S (labelled barrel 2) as compared to the cavity resistant steel which contained 0.002 wt.% S (labelled tee piece 1).</div>

Advances in Materials Science and Engineering

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Figure 7

Figure 7: Metallurgical and Stress State Factors Which Affect the Creep and Fracture Behavior of 9% Cr Steels 