Introduction of smelting technology of Damascus steel by powder metallurgy

In modern terms, containing only a component of steel known as monomer steel containing two or more components of the steel that is a composite steel and Damascus steel can be seen as showing obvious grain composite steel.

Damascus steel in ancient times is a representative of the high quality steel, because for a single steel and its hardness and toughness is always a pair of irreconcilable contradictions -- steel with higher carbon content, the higher hardness, toughness is low, low toughness is easy to fold, easy to collapse; carbon content is low, higher toughness, hardness is low the weapons made of pliable, easy to bend.

Damascus steel because it is made of two kinds of steel, so the hardness and toughness on a good balance. In addition, Damascus steel presented a special texture is its unique identity, not only from the appearance and other steel to distinguish, which are thousands of lines also has very high artistic effect, embodies the unique of the different regions and different producers

To the modern, modern industrial steelmaking technology rapid development, people can not only control the content of carbon in the steel, but also can freely control the chromium, molybdenum, vanadium, manganese, tungsten, sulfur, phosphorus etc.

elements content, which in ancient times is very difficult to do. These elements on the properties of steel is of great importance to the role, such as chromium can improve the steel hardness, strength and improve the oxidation resistance, forming of stainless steel, and sulfur and phosphorus is harmful elements and content in steel fewer is better. Modern technology can make the content of chemical elements to achieve the best state, so that the performance of modern steel and far more than the level of the ancient. This makes Damascus steel declined day by day, in the eyes of many people, Damascus steel has become a "useless" luxury, only as a purely ornamental handicraft appreciatively.

So, if the use of two kinds of monomer steel made by combining modern Damascus steel is more excellent performance? Theory says that this is a positive, but in the actual operation faces a seemingly insurmountable difficulties, are due to the modern high quality steel, stainless steel, alloy, under the condition of high temperature, the steel surface inevitable oxidation, and modern high-quality steel chromium, tungsten and other elements of the oxide melting point is higher than that of the steel melting point, these oxides clip in two pieces of steel in the middle of desire combined forging.

so that they can not as a whole, even if reluctantly forging close, "ash" clip, interlayer combination is not tight. Therefore, alloying elements can greatly improve the performance of single steel, but at the same time to collapse and forge play technology to create serious obstacles. There is a solution by forging in the anaerobic environment, although you can succeed, but the cost is too high, the process is too cumbersome, very high operation difficulty, it is difficult to be widely applied.