Open Access. Powered by Scholars. Published by Universities.®
Missouri University of Science and Technology
<p>Steel alloys -- Fatigue<br />Steel alloys -- Effect of high temperatures on<br />Materials at high temperatures<br />Chromium-plating</p>
Articles 1 - 1 of 1
Full-Text Articles in Engineering
Effects Of Cr-Plating And Environment On The Cracking Of Low Alloy Steels At High Temperatures, Robert C. Tooke
Effects Of Cr-Plating And Environment On The Cracking Of Low Alloy Steels At High Temperatures, Robert C. Tooke
Doctoral Dissertations
"The cracking of low alloy Cr-Mo-V steels under cyclic stress at 1000-1100°C. was studied using a specially designed test apparatus. The results obtained from specimens plated with hard chromium are compared to those of unplated specimens. Tests conducted in gas mixtures of carbon monoxide and carbon dioxide showed that a high CO/CO2 ratio retards cracking in both plated and unplated specimens. Both external and internal oxidation are used to explain these results. Inherent microcracks in the hard chromium plating promoted cracking in all CO/CO2 environments. It was also found that these steels are severely embrittled in the presence …