Data from Block-on-Ring Wear Tests of Victrex FG340 in Dry Sliding versus AISI 52000 steel
Description
The data has been collected during Block-on-Ring Wear Tests on "Victrex PEEK FG340". The tests were done in dry sliding against AISI 52000 steel rings, ground twist-free to 𝑅a = 0.14–0.19 μm, 𝑅z = 1.5–1.9 μm and with a hardness of 60–62 HRc in standard laboratory atmosphere (21–25 °C, 40–60% rH). The research objective was to determine the coefficient of friction of this material pair for use in the calculation of transient temperatures and dimensions during the process of designing a journal bearing. Test conditons were conducted on an ASTM G137-compliant Block-on-Ring tribometer from Tribologic GmbH, Germany. The tests were conducted at 1 MPa in uniform, unidirectional sliding at 1.0 m/s and lasted 6 hours each, resulting in a total sliding distance of 21,600 m for each test. Block cross section was 16 mm² and fiber orientation (if applicable) was nominally parallel (with respect to an ISO 527-1A speciment). Individual test results for the coefficient of friction, the linear, time-dependent wear rate and the counter body temperature were calculated from time-resolved sensor data. For this, data from the running-in phase of each experiment was ignored. For statistical reasons eight individual tests were conducted and - after elimination of outliers using Nalimov's variant of the Grubbs test - arithmetic mean and (frequentist) confidence intervals (95 %) were determined for the aforementioned quantities. This resulted in a COF of 0.28-0.32, a linear, time-dependent wear rate of 0.6 - 1.0 µm/h and a counter body temperature of 31.2 - 32.4 °C. For each of the 8 conducted tests, a plain-text columnar data file is provided ("*.proc"). Instead of including one or more header lines for denoting the meaning, name and unit of each column, a yaml-formatted, human-readable header file is provided ("*.yaml"). Column-indexing starts at 0, i.e. the first column of the data file is represented by index 0. Data and header files are matched by their test ids, which range from 555689 to 555696 in this data set.
Files
Steps to reproduce
Data can be reproduced by conducting a corresponding ASTM G137-compliant Block-on-Ring wear test. However, for tribological test data it is well known that reproducibility is low, even over time within the same laboratory, but even more so between different labs and across different tribometers and operators (see 10.1016/j.matchar.2006.12.008 e.g.).