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24 Jun 2024: Continuously cooled hypoeutectoid steel. H. K. D. H. Bhadeshia. The vast majority of the 1.3 billion tonnes of steel proudced annually have a microstructure which is a mixture of allotriomorphic ferrite and pearlite. The pearlite is the last phase

24 Jun 2024: "Rail Live" 2024. Pictures courtesy of Wilberth Solano who took them while at the Rail Live exhibition. Setting up for the demonstration of aluminothermit welding of rails. The yellow "Pandrol" is a preheater powered by propane. This avoids the need

24 Jun 2024: You can freely download the complete book Theory of Transformations in Steels. ... Grooves develop at the prior austenite grain boundaries due to the balancing of surface tensions at grain junctions with the free surface.

20 Jun 2024: Dr Sangeeta Khare visits Cambridge. Dr Sangeeta Khare is an academic at the Indian Institute of Technology, Delhi. She is also a PT Group member, having worked with Harry for many years, both at POSTECH in South Korea and in Cambridge. Here, we are

28 Jun 2024: Steels for rails. W. Solano-Alvarez and H. K. D. H. Bhadeshia. Abstract. Transport by rail is an efficient way of moving goods and people while managing problems such as congestion and the consequences on the environment. The relatively low energy

27 Jun 2024: Tiling and crystallography. The image below is of tiling done by Stoyan Smoukov (who kindly provided the image) at a sink in his house. The tiles have a clever shape so that they can tesselate to fill completely, a two-dimensional surface. Each tile

17 Jun 2024: Pictures of steel. These photographs courtesy of Jasmine Tong of the Hunan Great Steel Pipe Company Limited, who sent them in an unsolicited email. Steel. More steel. Even more steel. Published, 2023. October 8th, 2024.