NITRIDING TREATMENT FOR TI OR TI ALLOY

摘要

PURPOSE:To surely and easily apply nitriding treatment to the surface of Ti or Ti alloy by heating and holding Ti or Ti alloy in an NH3-gas atmosphere at a temp. in a specific range for a specific length of time. CONSTITUTION:At the time of applying nitriding treatment to the surface of Ti or Ti alloy, the Ti or Ti alloy is heated and held in an atmosphere consisting of 20-100vol.% NH3 gas and the balance inert gas or in an atmosphere consisting of 100vol.% NH3 gas at a temp. in the range of 400 to 850 deg.C for =1hr. As a result, nitriding treatment can be applied to the surface of a material consisting of Ti or Ti alloy easily with certainty while obviating the necessity of a special chamber.