摘要
The creep behaviors of the Ni added Ir 85 Nb 15 alloys were investigated at 1?650～1?800?℃ by compression tests in vacuum. X ray diffractometry, transmission electron microscopy and scanning electron microscopy were conducted to characterize the microstructure and lattice misfit change by the addition of Ni in the Ir 85 Nb 15 alloy. The results reveal that the Ni addition has a significant effect on the creep resistance of the Ir 85 Nb 15 two phase refractory superalloys. Basing on the results, the relationship among the Ni addition, lattice misfit, microstructure development, and the creep behavior in the Ni added Ir 85 Nb 15 alloys is discussed.
The creep behaviors of the Ni-added Ir_(85)Nb_(15) alloys were investigatedat 1650 approx 1800 deg C by compression tests in vacuum. X-ray diffractometry, transmissionelectron microscopy and scanning electron microscopy were conducted to characterize themicrostructure and lattice misfit change by the addition of Ni in the Ir_(85)Nb_(15) alloy. Theresults reveal that the Ni addition has a significant effect on the creep resistance of theIr_(85)Nb_(15) two phase refractory superalloys. Basing on the results, the relationship among theNi addition, lattice misfit, microstructure development, and the creep behavior in the Ni-addedIr_(85)Nb_(15) alloys is discussed.
出处
《中国有色金属学会会刊：英文版》
EI
CSCD
2002年第4期780-784,共5页
Transactions of Nonferrous Metals Society of China
