Designing model for adaptive variable withdrawal rate strategies to control misaligned grains during directional solidification of large-sized complex-shaped turbine blades by Yang Liu, Fu Wang, Jing Wang, Qiang Yang, Dichen Li, Jiantao Wu

Subjects: “…Ni-based superalloys…”
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Aluminizing as a method of improvement of Mar-M247 alloy lifetime by Zagula-Yavorska M.

“…The aluminizing of the Mar-M247 superalloy by the HTHA, HTLA and above-the-pack processes led to formation of two layers of the coatings. …”
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Synergistic effect of Pd+Rh on the microstructure and oxidation resistance of aluminide coatings by Zagula-Yavorska M.

“…The Pd+Rh modified aluminide coatings were deposited on nickel and CMSX-4 nickel superalloy. The Pd layer (2.5 μm thick) and the subsequent Rh layer (0.5 μm thick) were electroplated on both nickel and CMSX-4. …”
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MR Angiography of Peripheral Arterial Stents: In Vitro Evaluation of 22 Different Stent Types by Matthias C. Burg, Alexander C. Bunck, Harald Seifarth, Boris Buerke, Harald Kugel, Volker Hesselmann, Michael Köhler, Walter Heindel, David Maintz

“…Materials and Methods. 21 different stents and one stentgraft (10 nitinol, 7 316L, 2 tantalum, 1 cobalt superalloy, 1 PET + cobalt superalloy, and 1 platinum alloy) were examined in a vessel phantom (vessel diameters ranging from 5 to 13 mm) filled with a solution of Gd-DTPA. …”
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High-Temperature Low-Cycle Fatigue Behaviour of MAR-M247 Coated with Newly Developed Thermal and Environmental Barrier Coating by Ivo Šulák, Karel Obrtlík, Ladislav Čelko, Pavel Gejdoš, David Jech

“…This study investigates the strain-controlled low-cycle fatigue (LCF) behaviour of an untreated and surface-treated MAR-M247 superalloy in a symmetrical push-pull cycle with a constant strain rate at 900°C in laboratory air. …”
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High-Temperature Corrosion Behavior of Incoloy 800H Alloy in the Impure Helium Environment by Wei Zheng, Huang Zhang, Bin Du, Haoxiang Li, Huaqiang Yin, Xuedong He, Tao Ma

“…The helium coolant in the primary circuit of the high-temperature gas-cooled reactor (HTGR) contains traces of impurities, which can induce the corrosion of superalloys when exposed to elevated temperatures. The superalloy damage caused by the corrosion could threaten the safe operation of the reactor. …”
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Prediction of fatigue crack initiation under biaxial loading by J.V. Sahadi, D. Nowell, R.J.H. Paynter

“…This investigation revisits biaxial fatigue experiments carried out with the nickel-based superalloy termed Waspaloy. Recently, yield criteria extended to multiaxial fatigue and stress based approaches were analysed and their performance to correlate the biaxial test data was evaluated. …”
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Simple criterion for predicting fatigue life under combined bending and torsion loading by K. Slámecka, J. Pokluda

“…The comparison with similar classical stressbased approaches using data on diverse materials (several steels, aluminium alloy, and nickel base superalloy) reveals very good agreement with experimental data.…”
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Prediction of fatigue crack initiation under biaxial loading by J.V. Sahadi, D. Nowell, R.J.H. Paynter

“…This investigation revisits biaxial fatigue experiments carried out with the nickel-based superalloy termed Waspaloy. Recently, yield criteria extended to multiaxial fatigue and stress based approaches were analysed and their performance to correlate the biaxial test data was evaluated. …”
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Multi-scale crack closure measurements with digital image correlation on Haynes 230 by Stefano Beretta, Silvio Rabbolini, Angelo Di Bello, Huseyin Sehitoglu

“…An experimental campaign was developed to study fatigue crack growth in Haynes 230, a Ni-based superalloy. The effects of crack closure were investigated with digital image correlation, by applying two different approaches. …”
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Evaluation of the material’s damage in gas turbine rotors by instrumented spherical indentation by D. Nappini, G. Zonfrillo, F. Mastromatteo, I. Giovannetti

“…The components object of investigation consisted in 1st and 2nd high pressure turbine wheels made in nickel-base superalloy (Inconel 718), the spacer ring (Inconel 718) and the compressor shaft made in CrMoV low alloy steel (ASTM A471 type10). …”
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Laser Rapid Manufacturing of Stainless Steel 316L/Inconel718 Functionally Graded Materials: Microstructure Evolution and Mechanical Properties by Dongjiang Wu, Xiaokang Liang, Qian Li, Lijia Jiang

“…Two patterns of functionally graded materials (FGMs) were successfully fabricated whose compositions gradually varied from 100% stainless steel 316L to 100% Inconel718 superalloy using laser engineered net shaping process. …”
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Multi-scale crack closure measurements with digital image correlation on Haynes 230 by Stefano Beretta, Silvio Rabbolini, Angelo Di Bello

“…An experimental campaign was developed to study fatigue crack growth in Haynes 230, a Ni-based superalloy. The effects of crack closure were investigated with digital image correlation, by applying two different approaches. …”
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Study of Manufacturing Process of Holes in Aeroengine Heat Shield by Anyuan Jiao, Weijun Liu

“…The nickel-based superalloy GH3128 with high plasticity, high long-lasting creep strength, good resistance to oxidation and stamping, and good welding performance is widely used in aircraft engine heat shields. …”
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Application of a Cohesive Zone Model for Simulating Fatigue Crack Growth from Moderate to High ΔK Levels of Inconel 718 by Huan Li, Jinshan Li, Huang Yuan

“…A cyclic cohesive zone model is applied to characterize the fatigue crack growth behavior of a IN718 superalloy which is frequently used in aerospace components. …”
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Fatigue crack growth behavior of Inconel 718 produced by selective laser melting by R. Konecná, L. Kunz, G. Nicoletto, A. Baca

“…This study reports on the investigation of the fatigue crack growth behavior in Inconel 718 superalloy produced by selective laser melting. The fatigue crack growth curve and the threshold values of the stress intensity factor for propagation of long cracks were experimentally determined on compact-tension specimens fabricated using a RENISHAW A250 system and the recommended processing parameters. …”
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Modification of creep and low cycle fatigue behaviour induced by welding by A. Carofalo, V. Dattoma, R. Nobile, F.W. Panella, G. Alfeo, A. Scialpi, G.P. Zanon

“…In this work, the mechanical properties of Waspaloy superalloy have been evaluated in case of welded repaired material and compared to base material. …”
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Miniaturized-specimen creep testing: an alternative for evaluating the remaining life of Cr-Mo steel components by Heloisa Cunha Furtado, Fernanda Figueiredo Martins dos Santos, Leonardo Sales Araújo, Levi de Oliveira Bueno

“… Creep is the main degradation mechanism in steel and superalloy components operating at high temperatures in thermal and nuclear power generation units. …”
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Numerical Simulation Study on Directional Solidification of DD5 Nickel-Based Single-Crystal Turbine Blades by Jianhui Wei, Min Lu, Libo Pi, Huan Zhao, Qian Lei

“…An experimental alloy of a second-generation nickel-based single-crystal superalloy, DD5, was set for this investigation. The temperature gradient value of the conventional model at 80 mm and 160 mm was less than 3.8 K/mm, and the temperature gradient value of the new model structure at the same height could reach more than 5.0 K/mm. …”
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A Fractographic Study of Bending/Torsion Fatigue Failure in Metallic Materials with Protective Surface Layers by Karel Slámečka, Petr Šesták, Tomáš Vojtek, Marta Kianicová, Jana Horníková, Pavel Šandera, Jaroslav Pokluda

“…Results are given of a fractographic study of biaxial in-phase bending/torsion fatigue fractures in specimens made of nitrided steel and nickel-based superalloy with protective coatings (diffusion coatings and plasma-sprayed thermal barrier coatings). …”
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