The erosion-corrosion of alloys under oxidizing-sulphidizing conditions at high temperature

A new methodology for modelling erosion–corrosion regimes on real surfaces: Gliding down the galvanic series for a range of metal-corrosion systems

“…The results indicate that it is possible to simulate the erosion-corrosion mapping process on real components using such an approach. It is shown that a number [18,19]. The effect of these parameters will be addressed in further work.…”

The development of a high temperature supercritical carbon dioxide corrosion test rig

“…The rotating-type class of erosion-corrosion test rigs, whose negligible gas velocities make them apposite to testing in harsh gas compositions, include the whirling arm [69] and centrifugal designs [68]. Both designs can also accommodate multiple specimens simultaneously, allowing for time-efficient testing of different materials under identical conditions or one material at various impingement angles.…”

“…Specimens are mounted to an 'arm' or holder which, in turn, is rotated though a fluidized bed or stream to encourage particle interaction [67]. Accordingly, the particle impact velocity (limited to approximately 30 m/s) becomes a function of the rotational speed of the arm and at what radial distance the specimens are mounted from its axis of rotation [69]. A process flow diagram of a whirling arm test rig used in high-sulphur, low-oxygen environments is shown in…”

“…Adapted from [61] Effect of particle impact angle on the erosion rate of ductile and brittle materials Erosion-corrosion interaction regimes. Adapted from[64] Whirling arm erosion-corrosion test rig[69] Centrifugal erosion-corrosion test rig[68] Gas jet erosion-corrosion test rig[72] Wind tunnel-type erosion-corrosion test rig[67] Effect of internal pressure on the minimum required wall thickness for a pressure vessel of circular cross-section 46 Figure 2-23: Stress-temperature curves for high temperature boiler materials[74] Chevron Oil Field Research Company S-CO2 corrosion test rig[23] 49 Sandia National Laboratories S-CO2 corrosion test rig[24] INL single specimen, S-CO2 corrosion test rig. Adapted from [11] INL multi-specimen, S-CO2 corrosion test rig.…”

“…Impact velocities and loading rates of up to 200 m/s and 0.6 kg/m 2 s, respectively, are possible with the centrifugal rig, but quantifying the total mass of erodent that has impacted with the specimens becomes convoluted if various impingement angles are tested at once[67]. Whirling arm erosion-corrosion test rig[69] Centrifugal erosion-corrosion test rig[68]…”