兩種氬氣霧化粉末顆粒熱處理后的組織變化

Microstructures of Argon-Atomized FGH95 and Imported Rene'95 Superalloy Powders after Heat Treatment

摘要: 本文著重研究FGH95和Rene'95兩種粉末經熱處理后組織的變化。實驗結果指出:樹枝晶蛆織較胞狀晶組織難于均勻化。在1140℃加熱3h后粉末的鑄態組織才能完全消除達到均勻化。FGH95粉末中γ'相溶解溫度較Rene'95粉末中的低。

Abstract: Microstructures of argon-atomized FGH95 and imported Rene'95 superalloy powders after heat treatment were studied.It is shown that homogenization of dendritic microstructure is more difficult to complete than that of cellular mie-rostructure. The dendritic microstructure can be homogenized during heat treatment at 1140℃ for 3h. The solution temperature of FGH95 powder is lower than that of Rene'95.