Abstract
The previously developed method of correlating the local intergranular fracture stress with the probable composition of the grain boundary on which fracture initiated has been applied to Ni-Cr steels doped with Sb, Sn, and P so that the relative embrittling potencies of these elements can be compared. The results are discussed in terms of a hypothesis offered to rationalize the observed embrittlement effects. Experiments on the Sb-doped steel with two different intergranular Sb distributions support the position that brittle fracture in these notched specimens is controlled by the grain boundary with the maximum Sb concentration in the highly-stressed volume of material ahead of the notch.
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Kameda, J., McMahon, C.J. The effects of Sb, Sn, and P on the strength of grain boundaries in a Ni-Cr Steel. Metall Trans A 12, 31–37 (1981). https://doi.org/10.1007/BF02648505
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DOI: https://doi.org/10.1007/BF02648505