Journal
MATERIALS SCIENCE AND TECHNOLOGY
Volume 32, Issue 18, Pages 1899-1910Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/02670836.2016.1150242
Keywords
Electron microscopy; Bainite; Low-alloy steel; Ageing; Precipitation
Funding
- National Science Centre [2011/01/D/ST8/07219]
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Investigations on the microstructure of low-alloy steel in the as-received condition and after 70 000 h ageing at 550 and 600 degrees C were carried out. For the recorded images of the microstructure, a quantitative analysis of precipitates was performed. On that basis, a statistical analysis of collected data was made with the aim of estimating parameters of selected theoretical statistical distribution. Then, the forecast for average precipitate diameter and standard deviation of such a distribution for the time of 100 000 h at 550 and 600 degrees C was calculated. The obtained results of investigations confirm the possibility of using, in evaluation of degradation degree for materials in use, the forecasting methods derived from mathematical statistics.
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