PLASTIC DEFORMATION AND DISLOCATION STRUCTURE IN γ’-PHASE OF A DIRECTIONALLY SOLIDIFIED Ni-BASE SUPE

• 出 处: 金属学报：英文版
• 发表日期: 1990年2期
• 关键词: directional SOLIDIFICATION alloy DS Rene’80 plastic DEFORMATION γ’phase directio

The dislocation structure of directionally solidified（DS）Rene 80 superalloy during tensileand creep deformation has been studied by TEM.In tensile deformation,γ’shearing occurs byslip of APB-coupled（1/2）【110】dislocation pairs on{111}planes at temperatures