308 research outputs found
Aspectos cinĂ©ticos e microestruturais da transformação bainĂtica incompleta em ferros nodulares austemperados
Kinetics of the fcc â hcp Phase Transformation in Cu-Ge Solid Solutions Upon Isothermal Aging
Phase transformation of Cuârich precipitates from 9R to 3R variant via ledges mechanism in ferritic steel containing copper
Widmanstatten ferrite plate formation in low-carbon steels
The mechanism by which WidmanstÀtten ferrite plates nucleate and grow in low-carbon steels has been studied. In-situ laser scanning confocal microscopy (LSCM) observations, optical microscopy, and electron backscattered diffraction (EBSD) techniques have been used to characterize the relationship between grain boundary allotriomorphs and WidmanstÀtten ferrite plates. The issue of where WidmanstÀtten ferrite plates nucleate is one of some debate, with theories including morphological instability and sympathetic nucleation. Evidence has been found that supports the theory of a sympathetic nucleation mechanism being responsible for the formation of WidmanstÀtten ferrite plates. The EBSD measurements have shown that low-angle misorientations of between 5 and 10 deg exist between ferrite allotriomorphs and WidmanstÀtten ferrite plates
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OBSERVATIONS OF G.P. ZONES AMD THEIR TRANSFORMATION TO Y' IN THE Al-Ag SYSTEM
Further discussion to âdiffusional formation of ferrite in iron and its alloysâ by H.K.D.H. Bhadeshia
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