(1)通过气体热重脱附实验，对暴露在常温，大气环境下的FGH96合金粉末颗粒吸附的气体种类、含量进行了表征，发现吸附气体类型主要为O₂、N₂、H₂O等；

(2)通过氮氧分析仪对暴露在常温大气环境下0-7天内不同粒度粉末氧含量进行了表征，发现气体吸附吸附主要集中在前期、且粉末越细氧气吸附越多。

(1) Through gas thermogravimetric desorption experiment, the types and contents of gases adsorbed by FGH96 alloy powder particles exposed to normal temperature and atmospheric environment were characterized, and it was found that the types of adsorbed gases were mainly O2, N2, H2O, etc.

(2) Nitrogen and oxygen analyzer was used to characterize the oxygen content of powder with different particle sizes within 7 days of exposure to atmospheric environment at normal temperature, and it was found that gas adsorption and adsorption mainly concentrated in the early stage, and the finer the powder, the more oxygen adsorption.