Video description In this episode of “The Heat Treat Podcast” host Carlos Torres speaks with Steve Metz of Aalberts Surface Technologies in Oshkosh, Wisc., which is one of the largest salt heat treaters in North America. Steve talks about austempering and martempering.
Researchers identify effects of heat in materials with atomic resolution
A team of researchers at the University of California, Irvine, the Massachusetts Institute of Technology, and other institutions used cutting-edge electron microscopes and novel techniques to discover a way to map phonons—vibrations in crystal lattices—in atomic resolution, enabling deeper understanding of the way heat travels through quantum dots, engineered nanostructures in electronic components.
Scientists release initial analysis of rocks plucked from speeding asteroid
Scientists at the University of Chicago have now begun to announce the first results from the analysis of an extraordinary handful of dirt collected from the surface of a speeding asteroid by a spacecraft called Hayabusa2, which came back to Earth in 2020 in the Australian outback, after a six-year journey. When researchers from the Japanese space agency JAXA opened it, what they found suggests that this asteroid is a piece of the same material that coalesced into our sun four-and-a-half billion years ago.
Technology size comparison: the world’s smallest devices animation
Video description This animated video from Branch Education zooms in on the smallest devices and technologies that drive our modern world.
One Minute Mentor: Preheating for Austenitizing
Preheating normally is employed as a safeguard against the cracking and extreme distortion resulting from the thermal shock undergone by a cold workpiece when it is exposed to the high temperature of the austenitizing furnace.



