Tensile Corrosion Cracking

TCC-70 is a tensile testing machine used to perform Corrosion Cracking experiments to evaluate Hydrogen Embrittlement susceptibility of materials in accordance with ASTM F519. Tension tests are performed in saline solutions under cathodic polarization condition for hydrogen generation.
TCC-70 is supplied with an advanced software and integrated data acquisition to ensure user-friendly testing. TCC software features a test profile editor that allows the creation of custom testing programs. This allows users to produce a variety of test protocols and save them for future use. Test data is displayed graphically on PC screen during testing and saved to disk. Users can define test programs from PC software and download to PLC for execution. Full potentiostat control is integrated within the test profile editor.
Two loading protocols are available on TCC machine:
(1) Continuous loading protocol to generate stress-strain diagram and to determine Notch Fracture Strength (NFS) of tested material. Testing can be performed at various speeds up to 0.5 mm/mm/min as specified in ASTM E8;
(2) Step loading using incremental loads and hold times under displacement control to monitor the onset of crack growth as a measure of the threshold stress that is used to quantify the amount of residual hydrogen in a specimen.