Abstract
Fracture of 13 wt% chromium steel blades has been observed to occur in the intergranular mode in certain service failures. An attempt has been made in this study to identify the conditions in respect of material, loading and environment which may lead to intergranular fracture. Three different materials were subjected to varying heat treatments selected on the basis of fracture characteristics of as-received materials. It has been concluded that grain-boundary segregations of impurities and carbide precipitation, intergranular network of delta ferrite at prior austenitic grain boundaries, and a sufficient concentration of NaCl in conjunction with cyclic stress, promote intergranular fracture in a 13 wt% chromium steel.
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Bhambri, S.K. Intergranular fracture in 13 wt% chromium martensitic stainless steel. J Mater Sci 21, 1741–1746 (1986). https://doi.org/10.1007/BF01114734
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DOI: https://doi.org/10.1007/BF01114734