David Hernández-Escobar, Alejandra Slagter, Julie Gheysen, Andreas Mortensen
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引用次数: 1
Abstract
Abstract We document that in unstressed, undeformed, samples of pure iron containing silica inclusions precipitated by melt deoxidation, the iron matrix and a small fraction of the silica inclusions are locally separated at room temperature by a void. Thermal cycling, picnometry, dilatometry, and nano-holotomography experiments are combined to demonstrate that those voids originate from silica inclusion/iron matrix interfacial debonding during cooldown from elevated processing temperatures, resulting from the volumetric expansion that accompanies the austenite-to-ferrite phase transformation.
期刊介绍:
Focused on process metallurgy and materials processing science, Metallurgical and Materials Transactions B contains only original, critically reviewed research on primary manufacturing processes, from extractive metallurgy to the making of a shape.
A joint publication of ASM International and TMS (The Minerals, Metals and Materials Society), Metallurgical and Materials Transactions B publishes contributions bimonthly on the theoretical and engineering aspects of the processing of metals and other materials, including studies of electro- and physical chemistry, mass transport, modeling and related computer applications.
Articles cover extractive and process metallurgy, pyrometallurgy, hydrometallurgy, electrometallurgy, transport phenomena, process control, physical chemistry, solidification, mechanical working, solid state reactions, composite materials, materials processing and the environment.