Secrets of damask steel blade material – hardened steel – has the property that the hardness and elasticity to a certain extent it is inversely related. The hardness of the blade must be sufficiently large enough to blunt the knife soon, but not excessive, or crumble or break the cutting edge blade. Credit: WhiteWave Foods-2011. It has long been observed that the stability (durability), the blade does not always depend on the hardness of the blade. It is not uncommon when the soft blade tupilsya in less than a solid. At the Zlatoust Metallurgical Plant known Anosov, trying to recover secrets of manufacturing technology of damask steel, designated blade wear by cutting a roll of felt.
During the work, found that samples of blades made from single piece of steel and past the same heat treatment, have different characteristics. Cutting edge features are defined parameters of the micropyle, which is formed at its enchanting and is visible when you look at the blade edge under a microscope. The teeth of the saw should be small and identical, their peaks should have the maximum hardness and chip. This is ensured by the microstructure of the material and method of sharpening the blade. The sharper the edge angle, the blade is more easily penetrates into the material. But since the thin blade – more fragile, the to ensure that it is not broke, it is necessary to improve the elasticity, thus reducing wear.
In ancient times the optimal combination of these properties provide damask – a material that was imported from India. In the country Middle East, he walked into ingots and then in the process of forging and tempering of special techniques acquired unique properties, combining high hardness and high elasticity in comparison with non-like qualities, our understanding, ordinary blades. However, damask, too, is different. At the end of the last century, when once again flared up interest in the technology of Damascus steel in Russia was a commission, which took account of all the available specimens in the country damask weapons.