Ni-based superalloy
Effects of Aluminum Addition on the High Temperature Oxidation Behavior of CM-247LC Ni-based Superalloy
... CM-247LC Ni-based superalloy are studied under high temperature conditions, namely, 1000°C and 1150°C dry air isothermal oxidation ...CM-247LC Ni-based superalloys, the enhancement of ...
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Characterization of the Microstructure Evolution and Microsegregation in a Ni Based Superalloy under Super High Thermal Gradient Directional Solidification
... a Ni-based superalloy under super-high temperature gradient directional ...crystal superalloy (containing Re) about which there is no detailed quantification characterization of microstructure ...
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On the evolution of primary gamma prime precipitates during high temperature and high strain rate deformation and subsequent heat treatment in the Ni based superalloy, RR1000
... The microstructural evolution following compression and subsequent sub-solvus and super- solvus heat treatment was studied in the Ni-based superalloy, RR1000, typically used for rotor disc ...
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Effects of oxygen related damage on dwell fatigue crack propagation in a P/M Ni based superalloy : from 2D to 3D assessment
... the Ni-based superalloy in terms of the COD, secondary cracks and uncracked bridging ligaments in this study for the first ...lab based system (75 hours per sample) and limited field of view ...
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Effects of Salt Quenching Temperatures on Microstructure and Creep Properties of a PM Ni based Superalloy
... FGH95 alloy is a precipitation-hardened PM Ni- based superalloy with a high fraction of phase, and has high- er tensile and yield strength at 650 ℃ [6,7]. FGH95 su- peralloy has a compact ...
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Mesoscale modeling and simulation of microstructure evolution during dynamic recrystallization of a Ni-based superalloy
... a Ni-based superalloy were investigated using a simulative model that couples the basic metallurgical principle of dynamic recrystallization (DRX) with the two- dimensional (2D) cellular automaton ...
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Thermal Stability of a Rhenium Based Diffusion Barrier Coating Layer on a Ni Based Superalloy
... outer Ni-Cr-Al layer was prepared by electrolytic plating onto a Ni-based superalloy, followed by Cr-pack cementation in vacuum at 1523 ...low-Al Ni-Cr-Al phase, but had good stability ...
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The Effect of Surface Machining on the High Temperature Oxidation of a Single Crystal Ni Based Superalloy
... nickel-based superalloy is usually complicated, composing of several kinds of solute elements like aluminum, molybdenum, tungsten, chromium tantalum and ...the superalloy at high temperatures ...
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Role of oxygen in enhanced fatigue cracking in a PM Ni based superalloy : stress assisted grain boundary oxidation or dynamic embrittlment?
... bulged Ni/Co-rich oxides along with Ti/Cr/Al oxide intrusion preferentially form at the boundaries between high and low Schmid factor (SF) grains that are oriented normal to the tensile stress axis ...
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Morphology Evolution of γ′ Precipitates during Isothermal Exposure in Wrought Ni Based Superalloy Inconel X 750
... Department of Materials Science and Engineering, Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology, Yokohama 226–8502, Japan 2 Department of Mat[r] ...
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Cracking, Microstructure and Tribological Properties of Laser Formed and Remelted K417G Ni-Based Superalloy
... properties of the coating before and after laser remelting are presented. Cracking mechanisms including solidification cracking, liquation cracking and ductility dip 20.. cracking are p[r] ...
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Solidification Process and Behavior of Alloying Elements in Ni Based Superalloy Inconel718
... The experimental equilibrium partition coefficients of the alloying elements in the primary phase are shown in Table 2, which were compared to the values calculated by Thermo-Calc. No significant difference was observed be- ...
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The effect of high temperature exposure on the dendritic segregation in a conventionally cast Ni based superalloy
... Homogenisation of dendritic segregation proceeds by diffusion of alloying elements approximately perpendicular to the dendrite arms. The progress of this process is related to the ratio of the dendrite arm spacing (about ...
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Study The Effect Of Heat Treatment Temperature And Time On Carbide Formation And Hardness Variation Of Deposited Nickel Based Alloy
... This chapter introduces the basic Ni-based superalloy concept of directly deposited Waspaloy, in terms of its microstructure and heat treatment process. Background and problem statement are also ...
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Flow characteristics and intrinsic workability of IN718 superalloy
... IN718 superalloy have been carried out from the point view of microstructural evolution in recent years [33 – ...IN718 superalloy during holding period after hot forging, Zhang et ...IN718 superalloy ...
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Effect of Surface Treatment and Crystal Orientation on Microstructural Changes in Aluminized Ni Based Single Crystal Superalloy
... In order to further understand the differences in micro- structure between the SRZ formation region and the void formation region, EBSD analysis was conducted for the region where both SRZ and voids were observed. In Fig. ...
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Influence of Surface Orientation on Oxidation Resistance of Ni-based Single Crystal Superalloy CM186LC at 1100°C in Air
... The oxidation kinetics curve (Fig. 3) shows that the anisotropy on oxidation behavior was occurred where the specimens with (001) surface has a higher oxidation rate value than that of the specimens with (011) surface as ...
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Quantifying Regional-Scale Water Storage Using Models and Observations: Application For Drought Assessment In South Carolina
... 4-channel Ni-based superalloy dataset used in our later experiments, three annotators have to work full time for about two weeks to finish the manual ...3D superalloy images. However, grain ...
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Microstructural Investigation of CoNiCrAlY Coated Ni Based Single Crystal Superalloy Prepared by LPPS
... As the inlet gas temperature in a current gas turbine system has already reached 1773 K (which is well above the melting points of Ni-based superalloy substrates), 1) thermal barrier coatings (TBCs) ...
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Isothermal Oxidation Behavior Characteristics of a Second Generation Ni-base Single Crystal Superalloy in Air at 1000 and 1100°C
... 1100°C. It was apparent from the mass gain of the specimens obtained at both temperatures in the initial oxidation period of 25 h where the mass gain was rapidly increased due to the free surface of superalloy. ...
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