TY - GEN
T1 - Topologically close-packed phase precipitation in Ni-based superalloys
AU - Sun, Fei
AU - Zhang, Jianxin
N1 - Copyright:
Copyright 2011 Elsevier B.V., All rights reserved.
PY - 2011
Y1 - 2011
N2 - The addition of refractory elements is effective in improving the comprehensive performance of Ni-based superalloys, and meanwhile, the precipitation trend of TCP phases increases with the elements content due to the segregation of refractory elements during high temperature service. The precipitation of TCP phases obviously decreased the creep properties and creep rupture life of superalloys. The toughness and plastic of superalloys also dramatically deteriorated. The addition of Ruthenium (Ru) is shown to suppress the formation of TCP phases in Ni-based superalloys, resulting in much improved the creep resistance and the microstructural stability. The studies on TCP phases in Ni-based superalloys including crystallography and precipitation of TCP phases and the effect of alloy composition on TCP phases are reviewed.
AB - The addition of refractory elements is effective in improving the comprehensive performance of Ni-based superalloys, and meanwhile, the precipitation trend of TCP phases increases with the elements content due to the segregation of refractory elements during high temperature service. The precipitation of TCP phases obviously decreased the creep properties and creep rupture life of superalloys. The toughness and plastic of superalloys also dramatically deteriorated. The addition of Ruthenium (Ru) is shown to suppress the formation of TCP phases in Ni-based superalloys, resulting in much improved the creep resistance and the microstructural stability. The studies on TCP phases in Ni-based superalloys including crystallography and precipitation of TCP phases and the effect of alloy composition on TCP phases are reviewed.
KW - Refractory elements
KW - Ruthenium (Ru)
KW - Segregation
KW - Superalloys
KW - TCP phases
UR - http://www.scopus.com/inward/record.url?scp=80053081291&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=80053081291&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/AMR.320.26
DO - 10.4028/www.scientific.net/AMR.320.26
M3 - Conference contribution
AN - SCOPUS:80053081291
SN - 9783037852118
T3 - Advanced Materials Research
SP - 26
EP - 32
BT - Key Engineering Materials and Computer Science
T2 - 2011 International Conference on Key Engineering Materials and Computer Science, KEMCS 2011
Y2 - 6 August 2011 through 7 August 2011
ER -