Generation IV Supercritical water reactor (SCWR) increases the temperature and pressure needs in material testing. Cormet’s Russian client working in the field of nuclear power generation was after a testing machine that would let them do fracture mechanics and fatigue studies in the supercritical water environment.
The client needed exceptionally fast cyclic fatigue, which is why we selected the hydraulic loading device approach. Cormet chose Instron as a partner to deliver a servohydralic actuator and a hydraulic power unit for the project. The delivery included a hydraulic control module to enable the installation of an additional loading device for the HPU. A 100 kN 8800 series hydraulic actuator was used to apply stress to specimen inside the autoclave.
Instron provided everything related to hydraulics, including a load sensor. Tests are performed using Instron’s Wavematrix software package. Autoclave, specimen holders and the whole mounting frame assembly around the system was Cormet’s responsibility.
Over the years we have gained a lot of knowledge on supercritical water test equipment. With this servohydraulic loading device capable of running tests at 650°C (1200 °F) and 30 MPa (4350 psi), Cormet pushed the boundaries of material testing one step further again.