脉冲加热惰性气体熔融红外吸收-热导法测定镍基高温合金中痕量氧、氮

Determination of the Pulse Heating Inert Gas Fusion Thermal Conductivity Method of Infrared Absorption Trace Oxygen,Nitrogen in Nickel Base Superalloy

采用电极脉冲炉惰性气体熔融试样,红外吸收法测定镍基高温合金中痕量氧,热导检测法测定痕量氮。针对镍基高温合金中痕量氧、氮的测定,通过采用功率控制方式及分析时间的合理选择,实现了该方法测定镍基高温合金中痕量氧、氮,氧的RSD小于5%(n=8),氮的RSD小于2%(n=8),测定结果与认可值吻合较好,在镍基高温合金样品的测定中具有简便、快速、稳定、准确等优点。

In this paper, the furnace electrode pulse inert gas fusion sample, determination of trace oxygen in nickel base high temperature alloy by infrared absorption method for the determination of trace nitrogen, conductivity detection method. According to the determination of Trace Nickel Base SuperaUoy in oxygen, nitrogen, by the way, power control method and analysis time selection, implementation of the method for the determination of nickel base superalloy of oxygen, nitrogen, RSD of oxygen less than 5% （ n = 8） , RSD of nitrogen is less than 2% （ n = 8）, the results and the recognition results, and has the advantages of simple, fast, stable, accurate in determination of nickel base high temperature alloy samples.