Sun Yuejun, Kang Junguo, Gong Shengkai. Effects of Al,Ti and Ta on Microstructure and Properties of Ni-based Single Crystal Superally. [J]. Special Casting & Nonferrous Alloys (9):660-662(2008)
Sun Yuejun, Kang Junguo, Gong Shengkai. Effects of Al,Ti and Ta on Microstructure and Properties of Ni-based Single Crystal Superally. [J]. Special Casting & Nonferrous Alloys (9):660-662(2008)DOI:
Effects of Al,Ti and Ta on Microstructure and Properties of Ni-based Single Crystal Superally
Ti and Ta on microstructure and properties of Ni-based single crystal superalloy prepared by ISP-05-DS/SC furnace were investigated by testing both solvus temperature and mismatch degree . The results reveal that Al
Ti and Ta elements are mainly distributed in γ′ phase in as-cast microstructure. The solubility of Co
Cr and Mo in γ phase and solvus temperature as well as the enlargement of mismatch can be increased with increasing in Al
Ti and Ta content
which results in the morphology of γ′ phase changed from spherical to cubic structure. In addition
the enduring life of the superalloy at high temperature can be improved with the increase of Al
Ti and Ta content.
关键词
高温合金单晶固溶温度错配度持久寿命
Keywords
SuperalloySingle CrystalSolvus TemperatureMismatchEnduring Life