ISSN:
1013-9826
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 effect of thermo-mechanical treatment (TMT) process on the strength and precipitationbehavior of an 11%Cr-0.3Mo-1.6W steel during long term aging was investigated. The majorprecipitates in as-tempered specimen were identified as M23C6 (M=Fe,Cr) and MX (M=Ta,V;X=C,N).The M23C6 precipitate in TMT sample was more finely distributed due to the increased heterogeneousnucleation sites at dislocations. The tensile strength of TMT sample is higher than that of theconventional heat treatment (CHT) sample in as-tempered condition. However, Laves phase starts toprecipitate additionally in the aged condition. The growth rate of Laves phase in TMT sample is muchfaster than that in CHT sample. Therefore, the difference in tensile strength between CHT and TMTsample decreases as the aging time increases
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/54/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.345-346.1565.pdf
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