Nickel based superalloy
Stress relaxation behaviour in IN718 nickel based superalloy during ageing heat treatments
... IN718 nickel based superalloy with the application of hot relaxation tests at the usual temperature range ...physically based model to simulate stress relaxation based on microstructure ...
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Effect of strain level on the evolution of microstructure in a recently developed AD730 nickel based superalloy during hot forging
... from nickel based superalloys with superior mechanical properties for high temperature applications, require the parts to be subjected to certain thermo- mechanical processing during ...AD730 nickel ...
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Modelling plastic deformation in a single-crystal nickel-based superalloy using discrete dislocation dynamics
... The DDD model was used to simulate macroscopic re- sponses of a single-crystal nickel-based superalloy CMSX4 subjected to monotonic and cyclic loadings at elevated temperature. The model can simulate ...
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Creep Fracture and Creep Crack Growth in Inconel 718 Nickel based Superalloy (F211)
... The nickel based superalloy are a widely used group of materials for remarkable properties at elevated temperature and alloy IN718 represents almost half of the total tonnage of superalloy ...
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Low cycle fatigue of a directionally solidified Nickel based superalloy : testing, characterisation and modelling
... models, based on either crystal plasticity or phenomenological formulations have been proposed, to capture various behavioural aspects of nickel-based ...Predictions based on this modi fi ...
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Microstructure Evolution of Laser Repair Welded René 77 Nickel Based Superalloy Cast
... This study performed repair-welding tests on Rene´ 77 Nickel-based superalloy by adopting a Nd:YAG pulsed laser technique, coupled with Rene´ 41 filler wire and various welding parameters. After ...
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Fatigue crack growth in a Nickel based superalloy at elevated temperature : experimental studies, viscoplasticity modelling and XFEM predictions
... performed based on the initial and final crack lengths measured on the fracture surface (or both side surfaces and sectioned central plane for tests stopped at a certain ΔK ...
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Effects of solidification cooling rate on the microstructure of nickel based superalloy GTD222
... of superalloy solidification behavior is crucial for the controlling of superalloy casting process ...the nickel based superalloys, the matrix of alloy named gamma phase (γ) and the ...
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Influence of Primary and Secondary Crystallographic Orientations on Strengths of Nickel based Superalloy Single Crystals
... experimental superalloy which shows distinct active slip systems, the influence of primary and secondary crystal orientation on creep and fatigue strengths of Ni-based superalloy single crystals was ...
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Parametric optimization of powder mixed electrical discharge machining for nickel-based superalloy inconel-800 using response surface methodology
... iron-nickel-chromium based superalloy has numerous properties including excellent resistance to chloride stress-corrosion cracking, high strength and cryo- genic ...
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The Effect of Surface Machining on the High Temperature Oxidation of a Single Crystal Ni Based Superalloy
... a nickel-based superalloy is usually complicated, composing of several kinds of solute elements like aluminum, molybdenum, tungsten, chromium tantalum and ...the superalloy at high ...
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Oxidation Behaviour of a Newly Developed Superalloy
... developed nickel-based superalloy in simulating aero gas turbine engine ...new superalloy is highly susceptible to high temperature ...new superalloy with other ...established ...
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On the strengthening and embrittlement mechanisms of an additively manufactured Nickel-base superalloy
... The studied Nickel-base superalloy was designated as IN738LC with a modified composition for L -PBF (Ni–16.2Cr–8.5Co–3.5Al–3.5Ti– 2.4W–1.8Mo–1.7Ta–1Nb–0.1C–0.01B), which is a commercial alloy commonly used ...
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Microstructural evolution of a low-alloy steel / nickel superalloy dissimilar metal weld during post-weld heat treatment
... Abstract: The microstructural evolution of a dissimilar metal weld (DMW) obtained by narrow-gap gas tungsten arc welding (NG-GTAW) was investigated after it was subjected to a post-weld heat treatment (PWHT). The case ...
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Mesoscale modeling and simulation of microstructure evolution during dynamic recrystallization of a Ni-based superalloy
... parameter identification. Recently, based on the work of Ding et al. [5] and Kugler and Turk [7], Yazdipour et al. [10] simulated DRX during thermomechanical deformation of 304 austenitic stainless steel by the CA ...
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Influence of Rhenium on the Grain Boundary Strength, Phase Evolution, and High Temperature Mechanical Properties of a Fine Grain Nickel Base Superalloy at 982°C
... 3.1 Microstructure and characteristics of GB carbide Figure 1 displays the grain size of four alloys following heat treatment. The grain sizes of alloys refine from 90 to 50 mm with increasing Re content. Figure 2(a) ...
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Solidification Process and Behavior of Alloying Elements in Ni Based Superalloy Inconel718
... Moreover, the equilibrium partition coefficients of the alloying elements in the primary phase were determined by using specimens held for 3.6 ks at the beginning of solid- ification and were calculated using Thermo-Calc. ...
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Thermal Stability of a Rhenium Based Diffusion Barrier Coating Layer on a Ni Based Superalloy
... The nickel-based single crystal superalloy TMS-82+ 5) was used as the substrate, where the nominal composition is ...The superalloy was cut into discs of ...
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Improvement of the Oxidation Resistance of CoNiCrAlY Bond Coats Sprayed by High Velocity Oxygen-Fuel onto Nickel Superalloy Substrate
... a superalloy substrate by means of an HVOF system, using two different CoNiCrAlY powders with approximately the same chemical composition and granulometry, but showing different reactivity toward ...
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Influence of hydrogen on electrochemical behavior of Ni-based superalloy 718
... Ni-based superalloy that is widely used for high temperature applications, particularly for structural compo nents in the aeronautic and nuclear industries, due to its good mechanical ...
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