Sensitization of 12 Wt Pct chromium, titanium-stabilized ferritic stainless steel

Devine, Thomas M.; Ritter, Ann

doi:10.1007/bf02654400

Cited by 15 publications

(16 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Fig. 1 (a) indicates that the grain boundaries of the solution-treated specimens (aged for 0 h) were extremely clean without any precipitation which is consistent with the results reported in the literature [12,51]. However, with the aging time increasing from 2 h to 200 h there was still no carbide precipitation at the grain boundaries as illustrated in Fig.…”

Section: Microstructure Of Steelssupporting

confidence: 88%

“…However, with the aging time increasing from 2 h to 200 h there was still no carbide precipitation at the grain boundaries as illustrated in Fig. 1 (b) -(d), which is not consistent with the results in the literature [12,51,52]. Therefore, these specimens are not in accordance with the conventional Cr-depletion sensitization theory, namely the precipitation of Cr-rich carbides at the grain boundaries.…”

Section: Microstructure Of Steelscontrasting

confidence: 70%

Section: Microstructure Of Steelsmentioning

confidence: 99%

“…J o u r n a l P r e -p r o o f 9 It is generally accepted that IGC of ferritic stainless steels is due to the depletion of Cr along the grain boundaries caused by the precipitation of Cr-rich carbides at the grain boundaries [5,6,51]. The Cr-rich carbides are usually observed after sensitization at aging temperatures between 400℃ and 700℃ [51,52]. In our study, the specimens were aged at 450℃ for 0 h, 2 h, 20 h, and 200 h. The microstructure of the specimens for each aging time etched by Vilella's reagent was observed by SEM.…”

Section: Microstructure Of Steelsmentioning

confidence: 99%

See 3 more Smart Citations

Intergranular corrosion behavior of low-chromium ferritic stainless steel without Cr-carbide precipitation after aging

et al. 2020

View full text Add to dashboard Cite

Section: Microstructure Of Steelssupporting

confidence: 88%

Section: Microstructure Of Steelscontrasting

confidence: 70%

Section: Microstructure Of Steelsmentioning

confidence: 99%

Section: Microstructure Of Steelsmentioning

confidence: 99%

See 2 more Smart Citations

Intergranular corrosion behavior of low-chromium ferritic stainless steel without Cr-carbide precipitation after aging

et al. 2020

View full text Add to dashboard Cite

“…Devine and Ritter [46], however, contrasted the inclusion of nitrogen in the equation and rather maintained that sensitization resistance was solely dictated by carbon concentration with very little influence from nitrogen.…”

Section: The Use Of Stabilizationmentioning

confidence: 99%

An Overview of Sensitization Dynamics in Ferritic Stainless Steel Welds

Amuda

Mridha

2011

International Journal of Corrosion

View full text Add to dashboard Cite

Besides the problem of low ductility and poor notch toughness of ferritic stainless steel welds due to the microstructure characteristics of the weld section as a result of the weld heat input rate and the heat transfer factor, susceptibility to intergranular corrosion caused by the depletion of the chromium content of the weld matrix particularly in the HAZ is a major concern limiting the full deployment of the material in certain engineering applications regardless of its attractive economics combined with moderate strength and excellent corrosion resistance in alkali and acidic environments. Several attempts had been made to solve the problem. In the present work, a generic review of the sensitization problem in ferritic stainless steel welds as well as remediation techniques is presented. While stabilization is the most practiced prevention technique, it appears that the control of weld heat input and by extension the cooling rate is the ultimate option to prevent the onset of sensitization and control susceptibility to intergranular corrosion; however, the specific range of welding current and speeds that forms the given range of weld heat input needs to be determined.

show abstract