吸氮行为的影响
(1. 中国科学院 金属研究所， 沈阳 110016;
2. 山东理工大学 化学工程学院, 淄博 255012)
摘 要: 研究了不同温度的熔体过热处理对M963合金吸氮行为的影响。 结果表明：在1600-1650℃进行熔体过热处理, 合金中的氮含量因精炼作用而略有降低； 但当过热温度达到1700℃时， 由于熔体结构的变化而使合金开始吸氮；当过热温度达到1850℃时， 合金中的氮含量由原来的0.0006%（质量分数） 急剧增加到0.0047%（质量分数）。
关键字: 熔体过热处理; 高温合金; 氮; 熔体结构
（1. Institute of Metal Research, Chinese Academy of Sciences,
Shenyang 110016, China;
2. College of Chemical Engineering,
Shandong University of Technology, Zibo 255012, China）
Abstract:The effect of melt-superheating treatment at different temperatures on the nitrogen-absorption behavior of the nickel-base superalloy M963 was investigated. The results show that, the melt-superheating treatment between 1600℃ and 1650℃ can cause a slight decrease in nitrogen content of the alloy owing to the refinement; but the melt-superheating treatment above 1700℃ begins to increase the nitrogen content of the alloy because it changes the melt structure; and when the melt-superheating temperature reaches 1850℃, the nitrogen content of the alloy increases from 0.0006% to 0.0047%.
Key words: melt-superheating treatment; superalloy; nitrogen; meltstr
