Cooling Rate News Today

This article discusses the importance of a critical cooling rate during the heat treatment of metals/alloys.

The melting and solidification process of S32101 duplex stainless steel (DSS) was investigated using high-temperature confocal microscopy (HTCM). The method of concentric HTCM was employed to study microstructure evolution during the solidification process of S32101 DSS. This method could artificially create a meniscus-shaped solid–liquid interface, which dramatically improved the quality of in situ observations. During the heating stage, γ-austenite transformed to δ-ferrite, and this transf...

Food and agriculture scientists are playing a critical role in figuring out how we will feed and clothe the 25 percent more people on the planet in 2050.

According to recent research in the journal Materials, the mechanical and thermal properties of iron-rich Al-Si alloys are associated with the presence of a large amount of the iron-rich phase (-Al5FeSi), whose unfavorable physiology not only separates the matrix but also induces tensile stress and interface incompatibility with the Al matrix.

Abstract Microstructure difference between the center and the surface caused by temperature gradient during quenching process may lead to inhomogeneous properties of large-size products. A new finite element model (FEM) is proposed in the present work to precisely simulate temperature distribution of a bainite/martensite multiphase material during water-air alternating surface quenching process. Parameters like nonlinear variation of thermo-physical parameters, nonlinear variation of heat trans...

Abstract Phosphorus is known to partition to a dicalcium silicate – tricalcium phosphate solid solution (C S–C P) during the solidification of basic oxygen steelmaking (BOS) slag. Typically, C S–C P solidifies first and has a lower density than the remaining liquid slag, suggesting that gravity separation may be possible. This study simulated the cooling behaviour of BOS slag, and predicted the potential for spherical C S–C P particles to float. A lumped parameter heat transfer model ba...