IN-SITU OBSERVATION OF CRACK NUCLEATION IN NUCLEAR GRAPHITE BY DIGITAL IMAGE CORRELATION by Li, H, Duff, J, Marrow, T

“…To study the fracture behaviour of nuclear graphite, a fullfield digital image correlation technique has been applied to large specimens of isotropic Gilsocarbon graphite. …”

Preliminary evaluation of digital image correlation for in-situ observation of low temperature atmospheric-induced chloride stress corrosion cracking in austenitic stainless steels by Cook, A, Duff, J, Stevens, N, Lyon, S, Sherry, A, Marrow, T

“…Digital image correlation has been used to observe the growth of atmospheric-induced chloride stress corrosion cracking in type 304L stainless steel under controlled conditions of temperature, relative humidity and chloride-deposition density in a non-destructive manner. …”

Imaging autoclave development for in-situ optical measurement of high temperature aqueous corrosion processes by Wood, P, Duff, J, Marrow, T

“…The system combines refreshed-loop high temperature and pressure aqueous testing facilities under dynamic loading, with the optical techniques of Digital Image Correlation and Raman Spectroscopy. This paper reports an in-situ study of stress corrosion crack nucleation and growth in Stainless Steel under simulated BWR environments, using digital image correlation. …”

IN-SITU OBSERVATIONS OF INTERGRANULAR STRESS CORROSION CRACKING by Duff, J, Marrow, T

“…However, the high sensitivity of digital image correlation allows small crack opening displacements to be detected. …”

In-situ observation of damage nucleation in graphite under biaxial flexural loading by Mostafavi, M, Duff, J, Marrow, T

“…Previous work under uniaxial flexure has shown that the digital image correlation technique, which measures surface displacements with high precision, can be used to monitor the nucleation and growth of these defects. …”

In-situ observation of damage nucleation in graphite under biaxial flexural loading by Mostafavi, M, Duff, J, Marrow, T

“…Previous work under uniaxial flexure has shown that the digital image correlation technique, which measures surface displacements with high precision, can be used to monitor the nucleation and growth of these defects. …”

In situ observation of short fatigue crack propagation in oxygenated water at elevated temperature and pressure by Duff, J, Marrow, T

“…A new method is demonstrated for in situ measurement of short crack propagation rates during a corrosion fatigue test of an austenitic stainless steel within a windowed autoclave at 250 degrees C, 50 atmospheres, oxygenated water. Digital image correlation is used to monitor crack growth through measurement of the opening displacements of defects; either focused ion beam (FIB) milled notches from which fatigue cracks initiated, or stress corrosion cracks that subsequently propagated by fatigue. …”

Grain boundary structure and intergranular stress corrosion crack initiation in high temperature water of a thermally sensitised austenitic stainless steel, observed in situ by Stratulat, A, Duff, J, Marrow, T

“…The development of an intergranular stress corrosion crack initiation site in thermally sensitised type 304 austenitic stainless steel has been observed in situ in high temperature oxygenated water using digital image correlation of time-resolved optical observations. …”

Grain boundary structure and intergranular stress corrosion crack initiation in high temperature water of a thermally sensitised austenitic stainless steel, observed in situ by Stratulat, A, Duff, J, Marrow, T

“…The development of an intergranular stress corrosion crack initiation site in thermally sensitised type 304 austenitic stainless steel has been observed in situ in high temperature oxygenated water using digital image correlation of time-resolved optical observations. …”

In situ observation of intergranular crack nucleation in a grain boundary controlled austenitic stainless steel. by Rahimi, S, Engelberg, D, Duff, J, Marrow, T

“…To develop predictive models for stress corrosion crack nucleation, more information is required about how grain boundary crystallography and the orientations of the grain boundary plane and its surrounding grains affect crack development. Digital image correlation combined with electron backscatter diffraction has been used to characterize the microstructure and to observe, in situ, the nucleation and propagation of short stress corrosion cracks in thermo-mechanically processed type 304 stainless steel. …”

In situ observation of intergranular crack nucleation in a grain boundary controlled austenitic stainless steel. by Rahimi, S, Engelberg, D, Duff, J, Marrow, T

“…To develop predictive models for stress corrosion crack nucleation, more information is required about how grain boundary crystallography and the orientations of the grain boundary plane and its surrounding grains affect crack development. Digital image correlation combined with electron backscatter diffraction has been used to characterize the microstructure and to observe, in situ, the nucleation and propagation of short stress corrosion cracks in thermo-mechanically processed type 304 stainless steel. …”