ISSN:
1662-9752
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:
Subgrain growth in deformed ferrite and incomplete recrystallisation during intercriticalannealing in low carbon (LC) steels was investigated by EBSD and FEGTEM/EDS. It wasconfirmed that fine dual phase (α+γ) microstructures could be obtained even without the addition ofmicroalloying elements such as Nb and Ti, if the steels were heated above Ac1 temperature beforethe completion of primary recrystallisation and then intercritically annealed. The fine microstructurewas found to be mainly due to the inhibition of primary recrystallisation, and also due to theinhibition of subgrain growth in deformed matrix by finely dispersed γ phase formed duringheating. Mn segregation at α/γ interfaces seems to indicate that the kinetics of boundary migrationin the existence of γ is controlled by the volume diffusion of substitutional alloying elements acrossthe α/γ interfaces
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/17/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.558-559.247.pdf
