Ni基焼結超合金に関する研究(第4報) : 再結晶およびクリープに伴うγ相の形態変化

概要

論文の詳細を見る
Morphology change of γ precipitates in nickel-base superalloy IN-100 prepared by liquid phase sintering and swaging was investigated during recrystallization and creep (1323 K, 66.6 MPa).<BR>The results obtained were as follows:<BR>(1) In the swaged specimens, large-sized and cellular γ precipitates appeared behind the migrating boundary of recrystallized grains in a similar manner as that in discontinuous precipitation. On the other hand, uniform and fine γ precipitates appeared in the strain-free specimens subjected to solution treatment after swaging.<BR>(2) The large and cellular γ precipitated at grain boundaries parallel to the tensile stress axis during creep. However, this orientation became indistinct with decreasing y-grain size.
社団法人粉体粉末冶金協会の論文