In this video, we melt crucible steel from a spring. From the resulting ingot we make a chopper knife. We decided to make a knife handle from a particularly durable material - carbon fiber. The knife ...

Early manganese deposits discovered in Arizona included those in the Bisbee, Globe, Patagonia and Tombstone districts. Found in concentrated deposits of loose fragments in multiple layers of rock, ...

Steel doesn’t hide your mistakes. If a cutter rubs, the sound turns shrill. If you linger on a thin edge, straw colors creep in and tell you exactly how hot ...

AT the May meeting of the Iron and Steel Institute two papers were read and discussed dealing with the theory of the hardening of steel; they gave rise to one of the most interesting discussions of ...

Abstract: Hardening is an effective method to improve the hardness of the steel construction elements of an electric machine, such as rotor shaft. Surface hardening is typically employed for shafts as ...

It started out as a simple first-come, first-serve program offering $10,000 matching grants to owners of older Florida homes who take specific actions to harden their homes against hurricanes. The My ...

Precipitation hardenable (PH) stainless steels combine corrosion resistance and high mechanical strength. In these alloys the study of aging behavior provides a great number of options to obtain ...

(Bloomberg) — Eramet SA shares fell as much as 5.7% after Gabon decided to ban the export of manganese ore from 2029, jeopardizing the French miner’s biggest source of profit. Friday’s announcement, ...

Special to The New York Times. TimesMachine is an exclusive benefit for home delivery and digital subscribers. About the Archive This is a digitized version of an article from The Times’s print ...