ISSN:
1662-9779
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Physics
Notes:
Two boride layers were found to form at the interface of iiron-chromiium alllloys (10 and25% Cr) or an industrial 13% Cr steel and boron at 850-950 oC and reaction times in the range 1-12h. In the case of a Fe-10% Cr alloy and the steel, the layers are based on the FeB and Fe2Bcompounds. With a Fe-25% Cr alloy, the constituent phases are FeB and CrB for the outer layer andFe2B and Cr2B for the inner layer. Both layers are characterized by a pronounced texture.Diffusional growth kinetics of boride layers are close to parabolic and can alternatively be describedby a system of two non-linear differential equations, producing a good fit to the experimental data.The temperature dependence of the layer growth-rate constants obeys a relation of the Arrheniustype
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/24/transtech_doi~10.4028%252Fwww.scientific.net%252FSSP.138.181.pdf
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