TY - JOUR
T1 - Variation in mode II dominated interface fracture of stainless steel-epoxy bonds. Part 2: Multi-scale damage analysis
AU - Kanerva, M.
AU - Sarlin, E.
AU - Campbell, J.M.
AU - Aura, Kari
AU - Saarela, O.
PY - 2013
Y1 - 2013
N2 - The fracture at stainless steel-epoxy interfaces is investigated using acoustic emission (AE), field emission scanning electron microscopy (FESEM), atomic force microscopy (AFM), energy dispersive spectroscopy (EDS) and X-ray photoelectron spectroscopy (XPS). The effects of substrate morphology and aging on the interface are traced. Narrow grooves at the grain boundaries of steel introduce submicron-scale mechanical interlocking and result in high toughness. Sharp ridges after nitric acid etching introduce secondary cracking but may initiate interface collapse. The tough fracture process induced negligible AE. Shortterm aging of an interphase region causes diminished secondary cracking and the mechanical interlocking to malfunction. © 2012 Elsevier Ltd.
AB - The fracture at stainless steel-epoxy interfaces is investigated using acoustic emission (AE), field emission scanning electron microscopy (FESEM), atomic force microscopy (AFM), energy dispersive spectroscopy (EDS) and X-ray photoelectron spectroscopy (XPS). The effects of substrate morphology and aging on the interface are traced. Narrow grooves at the grain boundaries of steel introduce submicron-scale mechanical interlocking and result in high toughness. Sharp ridges after nitric acid etching introduce secondary cracking but may initiate interface collapse. The tough fracture process induced negligible AE. Shortterm aging of an interphase region causes diminished secondary cracking and the mechanical interlocking to malfunction. © 2012 Elsevier Ltd.
KW - Atomic force microscopy
KW - Environmental effects
KW - Fractography
KW - Interface fracture
KW - Scanning electron microscopy
KW - Atomic force microscopy
KW - Environmental effects
KW - Fractography
KW - Interface fracture
KW - Scanning electron microscopy
KW - Atomic force microscopy
KW - Environmental effects
KW - Fractography
KW - Interface fracture
KW - Scanning electron microscopy
UR - http://dx.doi.org/10.1016/j.engfracmech.2012.11.005
U2 - 10.1016/j.engfracmech.2012.11.005
DO - 10.1016/j.engfracmech.2012.11.005
M3 - Article
SN - 0013-7944
VL - 97
SP - 244
EP - 260
JO - Engineering Fracture Mechanics
JF - Engineering Fracture Mechanics
IS - 1
ER -