ISSN:
1662-8985
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
The thermally aged 10Cr-1Mo-1W-VNbN steels were charged with hydrogen by cathodicelectrolysis and then were subjected to the thermal desorption spectroscopic analyses to examine anapplicability of hydrogen as a tracer for evaluating the microstructure. The variation in hydrogendesorption characteristics with aging was discussed from the view points of microstructural changes.Experimental results revealed that the amount of hydrogen desorbed, CH, decreased monotonously asthe aging proceeded and there was a relatively good correlation between the CH and Vickers hardness.The CH was expected to be a useful indicator for the material degradation. Additionally, thedecomposition of the profile was attempted to understand the metallurgical meaning of hydrogenprofile and apply the present method to the microstructural evaluation. As the result, it was suggestedthat the changes in two decomposed profiles with aging might reflect the variation of dislocationdensity and the precipitation process of M23C6 carbide and/or Laves phase, respectively
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/39/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.15-17.684.pdf
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