Method for increasing nitrogen content of vanadium-nitrogen alloy

• Main Authors: MOU LIANHONG, LI QIANWEN, QUAN XINGQIANG, ZHANG MANYUAN, HU LI
• Format: Patent
• Language: Chinese; English
• Published: 14.04.2010
• Subjects: ALLOYS; CHEMISTRY; COMPOUNDS THEREOF; FERROUS OR NON-FERROUS ALLOYS; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention discloses a method for increasing the nitrogen content of vanadium-nitrogen alloy, comprising the following steps of adding a nitridation accelerator into a mixture comprising vanadium oxide, a carburizing agent, catalyst and a bonding agent, making material blocks, and heating the material blocks for gasifying or decomposing the nitridation accelerator to generate gas and form crisscrossed micro holes or channels in the material blocks. The nitrogen content is greatly increased as nitrogen in the nitridation reaction enters the inside of the material blocks through the holes or channels to participate in the reaction to result in completion of the nitridation reaction. Compared with the prior art, the invention solves the problems of accelerating carburization and intensifying nitridation from the carburization and oxidation mechanisms of vanadium-nitrogen alloy through adding nitridation accelerators into materials, thereby greatly increasing the nitrogen content of the vanadium-nitrogen alloy