Fig. 11: Backward analysis to identify safe operating conditions for DSSs. | npj Materials Degradation

Fig. 11: Backward analysis to identify safe operating conditions for DSSs.

From: Predicting stress corrosion cracking in downhole environments: a Bayesian network approach for duplex stainless steels

Fig. 11

The BN model infers that DSSs may resist up to 0.5 bar pH2S, in environments comprising Cl− ≤ 31,767 ppm, pCO2 ≤ 0.546 bar, temperatures ≤ 89 °C, and pH values around 4.2. The nodes SCC and pitting corrosion indicate a 100% probability that both corrosion phenomena do not occur, while the \({\sigma }_{R}\) node indicates tensile loadings are greater than 90% \({\sigma }_{{YS}}\).

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