Authors: King, J. E.; Knott, J. F.

Source: Metal Science, Volume 15, Number 1, January 1981 , pp. 1-6(6)

Publisher: Maney Publishing

Abstract:

The effects of a temper-embrittling heat treatment on the ductile failure of the low-alloy steel En30A are found to be (a) a large reduction in crack initiation strain, as measured by ?_c the critical COD, (b) a smaller reduction in upper shelf energy, measured in notched-bar impact tests, and (c) a decrease in tensile ductility. This behaviour is explained in terms of the effect which the weakening of carbide/matrix interfaces by the presence of segregated impurity atoms has on the ductile fracture process in this steel.

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Document Type: Research Article

DOI: http://dx.doi.org/10.1179/030634581790426516

Publication date: 1981-01-01

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