Tensile Properties and Fracture Characteristics of Spray Deposited Ni_3Al-Based Superalloy (IC6)

摘要

The yield and tensile strengths of spray-deposited Ni_3Al-based superalloy increase with temperature up to 760℃, and decrease at higher temperature. After HIP treatment, the yield strengths decrease whilst ductilities and tensile strengths increase. Stereographic projection analyses of the cracking process have showed that the cracks form and develop along the (111) plane of the octahedron slip, irrelevant to temperature conditions.