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Influence of grain size on the small fatigue crack initiation and propagation behaviors of a nickel-based superalloy at 650℃Xumin Zhu1,Congyang Gong1,2,Yun-Fei Jia1,Runzi Wang1,Chengcheng Zhang2,Yao... for more percentages of the total fatigue life for the alloy with smaller grain size. The fatigue life generally increased with increasing crack initiation life. The small crack transited to long crack......
, HENDERSON M B, WILKINSON A J, HIDE N J, REED P A S. High temperature fatigue crack growth in powder processed nickel based superalloy U720Li[J]. Materials Science and Technology, 2013, 18(3): 349-353. [6] ANDRIEU E, MOLINS R. Intergranular crack tip oxidation mechanism in a nickel-based superalloy[J]. Materials Science and Engineering A, 1992, 154: 21-28. [7] 王 泓. 材料疲劳裂纹扩展和断裂定量规律的研究[D]. 西安: 西北工业......
Effects of Crystal Orientations on the Low-Cycle Fatigue of a Single-Crystal Nickel-Based Superalloy at 980 °CLiu Liu1,2,Jie Meng2,Jin-Lai Liu2,Hai-Feng Zhang1,3,Xu-Dong Sun1,Yi-Zhou Zhou21. School...-based single-crystal superalloy at 980 °C has been investigated. It is found that the orientation dependence of the fatigue life not only depends on the elastic modulus, but also the number of active slip......
. Key words: Ni76Cr19AlTi superalloy; nickel-based superalloy; high temperature oxidation; oxidation kinetics alloy follows the parabolic rate law in the range of 600-800℃, the oxidization rate constant Kp increases as temperature elevating. The average oxidization rate at 800℃ for 200h......
-grain boundary (SSGB), solidification grain boundary (SGB) and migrated grain boundary (MGB) exist in the substructure. Key words: Inconel 601 alloy; nickel-based superalloy; laser welding... 中图分类号:TG456.7 文献标志码:A Microstructure of Inconel 601 nickel-based superalloy laser welded joint AO San-san1, LUO Zhen1, 2......
Effect of a High Magnetic Field on the Shape of the γ’ Precipitates in Cast Nickel-based Superalloy K52X. Ren1), G.Q. Chen1), W.L. Zhou1), C.W. Wu2), C. Yuan3) and J.S. Zhang1) 1) State Key...’ precipitates of cast Ni-based superalloy K52 after aging treatment under a high magnetic field was investigated. The results show that duplex γ’ precipitates are present in the γ’ matrix after aging......
) characterized by grain boundary bulging was the main nucleation mechanism for GH4037 alloy. Key words: nickel-based superalloy; high temperature deformation; semi-solid; microstructure evolution; dynamic...Trans. Nonferrous Met. Soc. China 30(2020) 710-726 High temperature deformation behavior and microstructure evolution of wrought nickel-based superalloy GH4037 in solid and semi-solid states Ju-fu......
Metals, 2015, 25(10): 2695v2706. [3] 倪 莉, 张 军, 王 博, 刘 林, 傅恒志. 镍基高温合金设计的研究进展[J], 材料导报, 2014, 28(2): 1-6. NI Li, ZHANG Jun, WANG Bo, LIU Lin, FU Heng-zhi. Progress in alloy design of Nickel-based...: By meaning of measuring the creep properties under high temperatures of Ru-free and 2%Ru nickel-based single crystal superalloy. The results show that 2%Ru alloy exhibit longer creep life at 1100 ℃ and 137......
; deformation activation energy; processing map; dynamic recrystallization 1 Introduction As a typical nickel-based alloy, Ni80A superalloy has been widely applied in the hot end components of a prime... deformation characteristics and processing map analysis for nickel-based corrosion resistant alloy [J]. Journal of Alloys & Compounds, 2015, 623: 69-78. [17] MOHAMADIZADEH A, ZAREI-HANZAKI......
as HT1 provides more stable microstructure for the cast or wrought IN939 superalloy. Key words: nickel-based superalloy; IN939 superalloy; long-term coarsening; manufacturing route; heat treatment; g... is a precipitation-hardened nickel-based superalloy, which is now mainly used for manufacturing of high temperature cast components such as gas turbine blades/vanes, fuel nozzles and turbine casings [13,14......
