from the conferences organized by TANGER Ltd. provisional website
The microstructure and mechanical properties of Vanadis 6 ledeburitic tool steel, which was subjected to sub-zero treatment in liquid helium, has been examined with reference of the same material after conventional room temperature quenching. It has been found that the sub-zero treatment considerably reduces the amount of retained austenite, and increases the number and population density of carbides. As a result of SZT, the hardness, the flexural strength and the fracture toughness of the material are improved, except minor cases.Keywords: Vanadis 6 steel, sub-zero treatment, liquid helium, microstructure, mechanical properties
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