EROSION CORROSION IN DISTURBED 2 PHASE LIQUID PARTICLE FLOW

Local erosion-corrosion rates have been measured in a segmented tubular flow cell under disturbed turbulent flow conditions at a sudden contraction and a sudden expansion of the tube. Carbon steel and austenitic stainless steel cells were used and the flow medium was 3 wt% NaCl with and without the addition of 2 vol.% silica sand, dm = 0.43 mm. The solutions were saturated with air, nitrogen or carbon dioxide. The large variations in the erosion-corrosion rates and the retention of the corrosion products along the length of the cell are discussed in relation to the structure of the flow. © 1989.