000266458 001__ 266458
000266458 005__ 20190812204802.0
000266458 020__ $$a978-3-0357-1208-7
000266458 022__ $$a0255-5476
000266458 02470 $$a000468152500104$$2isi
000266458 0247_ $$a10.4028/www.scientific.net/MSF.941.645$$2doi
000266458 037__ $$aCONF
000266458 245__ $$aStudy on Bainite/Martensite Transformation in Reheated Weld Metals
000266458 260__ $$c2018$$aDurnten-Zurich$$bTRANS TECH PUBLICATIONS LTD
000266458 269__ $$a2018-01-01
000266458 336__ $$aConference Papers
000266458 490__ $$aMaterials Science Forum
000266458 520__ $$aA new combination of laser scanning confocal microscope (LSCM) and electron backscattering diffraction (EBSD) with a field-emission scanning electron microscope (SEM) is utilized to study the mechanism of bainite transformation in reheated low carbon bainitic weld metal. The LSCM observations show that laths grow on the surface at various rates, from 30 mu m/s to 240 mu m/s, which is greatly larger than those referred in literature for bainite. In order to confirm that the laths are bainite and not surface martensite, additional experiments were performed. The crystallographic characteristics of surface bainite were compared with those of bulk bainite obtained during isothermal treatments and those of bulk martensite obtained by water quenching. By means of a dedicated EBSD data-treatment software, orientation relationship, variant selection and packet groups were identified; it was shown that both the surface laths and bulk bainite share the same misorientation, habit plane, and have similar variant distribution. Experiments are running to compare these features with those of bulk martensite. If the distinction between martensite and bainite is successful, the very high growth rates of the surface laths could be used to discuss the displacive/diffusive nature of bainitic transformations.
000266458 650__ $$aMaterials Science, Multidisciplinary
000266458 650__ $$aMaterials Science
000266458 6531_ $$alscm
000266458 6531_ $$aebsd
000266458 6531_ $$abainite/martensite transformation
000266458 6531_ $$aks orientation relationship
000266458 6531_ $$ahabit plane
000266458 6531_ $$alath martensite
000266458 6531_ $$amicrostructures
000266458 6531_ $$aquantification
000266458 6531_ $$atemperature
000266458 6531_ $$agrowth
000266458 700__ $$aMao, Gaojun
000266458 700__ $$aCayron, Cyril$$0248450$$g112215
000266458 700__ $$aCao, Rui
000266458 700__ $$aLoge, Roland$$0248074$$g243441
000266458 700__ $$aChen, Jianhong
000266458 7112_ $$a10th International Conference on Processing and Manufacturing of Advanced Materials Processing, Fabrication, Properties, Applications (THERMEC)$$dJul 09-13, 2018$$cParis, FRANCE
000266458 773__ $$j941$$q645-650$$tThermec 2018: 10Th International Conference On Processing And Manufacturing Of Advanced Materials
000266458 8560_ $$fcyril.cayron@epfl.ch
000266458 909C0 $$mcyril.cayron@epfl.ch$$zMarselli, Béatrice$$0252516$$yApproved$$pLMTM$$xU12903
000266458 909CO $$pconf$$pSTI$$ooai:infoscience.epfl.ch:266458
000266458 961__ $$abeatrice.marselli@epfl.ch
000266458 973__ $$aEPFL$$sPUBLISHED$$rREVIEWED
000266458 980__ $$aCONF
000266458 980__ $$aWoS
000266458 981__ $$aoverwrite