Initial stage of isothermal decomposition of austenite to ferrite and graphite in spheroidal graphite cast iron

Microstructure of As-cast Ferritic-pearlitic Nodular Cast Irons

“…5 corresponds to the so-called incubation time in the literature on time temperature transformations (TTT) and continuous cooling transformations (CCT). To get further insight in the very start of the ferritic reaction, Hellal et al 13) performed dilatometry experiments where samples were held in the austenite field and then rapidly cooled to and held at a temperature below T α . During this second holding, the recorded curves showed first a contraction and then a dilation.…”

Author’s reply

“…[6][7][8][9] Rapid heat transfer afforded by high All alloys were prepared by arc melting high-purity metals thermal conductivity enables efficient cooling, which supin an atmosphere of purified argon. pct X, Co 48 Al 50 X 2 (Co deficient) Thermal conductivity is one of the key parameters and Co 50 Al 48 X 2 (Al deficient), are used to decide the ridge required for high-temperature structural applications of direction in ternary CoAl phase.…”

Isothermal Transformation Ar1 Product Morphology and Kinetics of EN-GJS-600-3 Cast Iron

“…The eutectoid reaction is most likely to follow both systems in supercooling of non-alloy ductile cast iron austenite. The majority of reference literature suggests that the austenite→ferrite + graphite transformation has priority over the austenite→pearlite transformation [9][10][11][12][13][14][15]. The objective of this work is to demonstrate and interpret the effect of austenitizing temperature on the nature of pre-eutectoid precipitates and the eutectoid reaction kinetics separately for the stable system and the metastable system in cast iron with a low solid graphitization trend.…”