Creep and stress relaxation data for a martensitic steel at 500°C

The files here uploaded describe the results of creep and stress relaxation tests performed on a martensitic steel at 500 °C. Data are provided both as .txt files and as excel files.

Tests were performed on cylindrical sample, with a gauge length of 28 mm and diameter 5.6 mm

Four creep tests were performed under 210, 230, 250 and 270 MPa stresses and stopped after 1% creep strain. Then they were unloaded and the anelastic contraction was recorded. Data are given in the form of creep strain vs. time.

Two repeated stress relaxation tests were performed, with initial stresses of 270 MPa and 300 MPa. Samples were re-loaded and subsequently relaxed for a few times. In the 270 MPa test, before relaxation the sample was crept for a 0.1% strain.

These data were used for a paper published on Metals.