Electronic Resource
s.l. ; Stafa-Zurich, Switzerland
Solid state phenomena
Vol. 124-126 (June 2007), p. 1497-1500
ISSN:
1662-9779
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Physics
Notes:
The influence of solidification rates and Cr equivalents on the formation of the ferrite wasstudied by directional solidification in mod. (9-12)Cr-1Mo steels. It was found that the volumefraction of ferrite increased as increasing Cr equivalent and solidification rate. The volume fraction ofthe ferrite showed much higher at low solidification rates with the planar or cellular interface than thatat high solidification rates with the dendritic interface. The volume fraction of ferrite in solidificationmicrostructure showed much higher than that in extruded and heat-treated alloys. It depends on notonly solidification rate and Cr equivalent but also the solidification fraction. At low solidificationrates, there occurs segregation because the solid/liquid interface was planar or cellular, and it makescomposition change with solidification fractions. The formation of ferrite has been discussed with Crequivalent and solidification rate
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/23/transtech_doi~10.4028%252Fwww.scientific.net%252FSSP.124-126.1497.pdf
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