Corrosion fatigue test apparatus with high temperature and high pressure circulating water
A high-temperature, high-pressure, corrosion-fatigue technology, applied in the field of material experiments, can solve problems such as maintenance troubles and complex structures, and achieve the effects of low cost, simple operation, computer automatic control and data acquisition
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Embodiment 1
[0051] The corrosion fatigue test of SA508-3 low alloy steel for domestic pressure vessels in 300℃, 10MPa, DO dissolved oxygen saturated high temperature and high pressure circulating water, the strain amplitude is 2.18%.
[0052] The experimental sample material is SA508-3 low-alloy steel for domestic nuclear power plant pressure vessels, which is processed into a smooth round bar sample with a gauge length of 16mm and a diameter of 8mm. The fatigue sample is fixed on the fixture, the autoclave is tightened, and the water storage After the tank is filled with water, introduce oxygen to keep the oxygen pressure of 0.2-0.5MPa in the water storage tank for at least 12 hours, and the dissolved oxygen in the water reaches saturation (8ppm). Start the high-temperature and high-pressure circulating water control cabinet and the fatigue machine control cabinet. Start the circulation pump to filter all the water through the ion exchange resin. When the electrical resistivity of the out...
Embodiment 2
[0054] High temperature and high pressure corrosion fatigue test of SA508-3 low alloy steel for domestic pressure vessels at a strain amplitude of 1.9%.
[0055] The experimental sample material is SA508-3 low-alloy steel for domestic nuclear power plant pressure vessels, which is processed into a smooth round bar sample with a gauge length of 16mm and a diameter of 8mm. The fatigue sample is fixed on the fixture, the autoclave is tightened, and the water storage After the tank is filled with water, introduce oxygen to keep the oxygen pressure of 0.2-0.5MPa in the water storage tank for at least 12 hours, and the dissolved oxygen in the water reaches saturation (8ppm). Start the high-temperature and high-pressure circulating water control cabinet and the fatigue machine control cabinet. Start the circulation pump to filter all the water through the ion exchange resin. When the electrical resistivity of the outlet water is greater than 10MΩ.cm, turn on the high-pressure pump and...
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