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Study of the energy for embrittlement damage initiation by SPT means. Estimation of KEAC in aggressive environments and rate considerations

Abstract: There is large experience on the determination of crack propagation initiation parameters in SCC and HE scenarios by fracture mechanics tests. Although there are satisfying experiences, the estimation of a parameter in those situations by Small Punch means is in continuous research. In this work a new approximation for the parameter KEAC is presented. It is based on the energy for embrittlement damage initiation on notched Small Punch specimens in SCC and/or EH conditions. Likewise another key aspect is analyzed, as it is the punch rate for SPT in aggressive environments, aiming not to have an influence on propagation mechanisms. Finally, bases for future research in this field are established.

 Autoría: Arroyo B., Álvarez J., Lacalle R.,

 Fuente: Theoretical and Applied Fracture Mechanics Volume 86, Part A, December 2016, Pages 61-68

 Editorial: Elsevier

 Fecha de publicación: 01/12/2016

 Nº de páginas: 8

 Tipo de publicación: Artículo de Revista

 DOI: 10.1016/j.tafmec.2016.08.019

 ISSN: 0167-8442,1872-7638

 Proyecto español: MAT2011-28796-C03

 Url de la publicación: https://doi.org/10.1016/j.tafmec.2016.08.019