Premium
AN EVALUATION OF THE FRACTURE RESISTANCE OF ENGINEERING MATERIALS FROM THE FRACTURE SURFACE MORPHOLOGY
Author(s) -
Alcala J.,
Ledezma M.
Publication year - 1992
Publication title -
fatigue and fracture of engineering materials and structures
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.887
H-Index - 84
eISSN - 1460-2695
pISSN - 8756-758X
DOI - 10.1111/j.1460-2695.1992.tb01279.x
Subject(s) - materials science , ductility (earth science) , fracture (geology) , optical microscope , microstructure , metallurgy , grain size , composite material , scanning electron microscope , creep
— The following work examines the fracture morphology in relation to the COD R ‐curves of three stainless steels. Additional considerations are noted concerning crack growth behaviour based on simple, optical microscopic observations. Procedures for the determination of R ‐curves and initiation values are outlined when a multi‐specimen technique is used and the crack growth is measured by a light microscope. The COD R ‐curves are obtained for different conditions which reduce fracture ductility in two 310S and one 304H stainless steels. These conditions include a sigma‐phase in one 310S, and sensitization of the large grain size microstructure in the other 310S stainless steel.