Results 31 to 40 of about 1,320 (253)

Comparison of the Warm Deformation Constitutive Model of GH4169 Alloy Based on Neural Network and the Arrhenius Model

open access: yesMetals, 2022
In order to realize a better description of plastic flow behavior in the warm deformation process of GH4149, the GH4169 superalloy was compressed by Gleeble-3800 at a temperature of 700–900 °C and a strain rate of 0.01–10 s−1.
Peng Cheng   +4 more
doaj   +1 more source

Behavior of Nitrogen in GH4169 Superalloy Melt during Vacuum Induction Melting Using Returned Materials

open access: yesMetals, 2021
The nitrogen behavior of superalloy melt GH4169 during the vacuum induction melting (VIM) process was clarified by using different proportions of returned materials including block-shaped returned material, chip-shaped returned material, and pure ...
Shengyong Gao   +4 more
doaj   +1 more source

High Cycle Fatigue Life Prediction of Single‐Crystal Specimen Based on TCD Method and Crystal Plasticity Theory

open access: yesInternational Journal of Aerospace Engineering, Volume 2023, Issue 1, 2023., 2023
This paper performs a comprehensive investigation on the high cycle fatigue (HCF) life prediction of turbine blade with film cooling holes. The modified theory of critical distance (MTCD) method is proposed to estimate the fatigue life of the specimen considering the notch sensitivity coefficient and multiaxial stress effect.
Yunwu Wu   +5 more
wiley   +1 more source

Sustainable Machining Using Eco‐Friendly Cutting Fluids: A Review

open access: yesAdvances in Materials Science and Engineering, Volume 2022, Issue 1, 2022., 2022
The base fluids of eco‐friendly cutting fluids should contain some vegetable oil. Due to their eco‐friendly, thermal, and tribological qualities, these types of machining fluids are becoming increasingly popular among researchers throughout the world.
Pankaj Kumar   +10 more
wiley   +1 more source

Investigation of microstructure and mechanical properties of GH4169 superalloy joint produced by linear friction welding

open access: yesJournal of Materials Research and Technology, 2023
Linear friction welding (LFW) method is a solid-state manufacturing process. In the present study, GH4169 superalloy was welded using LFW method. Macro morphology and shortening of LFW GH4169 joints were investigated to understand the effect of welding ...
Xiawei Yang   +8 more
doaj   +1 more source

Parametric Influences of Geometric Dimensions on High Temperature Mechanical Behaviors and Damage Mechanisms of Ceramic Matrix Composite and Superalloy Double Bolted Joints

open access: yesInternational Journal of Aerospace Engineering, Volume 2022, Issue 1, 2022., 2022
Given multiple material performance advantages, ceramic matrix composite (CMC) material has become one of the most promising hot structural materials used for thermal protection system in hypersonic vehicles. Under harsh thermal exposure of vehicles in flight, the design of connection structure would be a critical issue in improving load‐carrying ...
Shuyuan Zhao   +4 more
wiley   +1 more source

Dynamic Characteristics Analysis of 3D Blade Tip Clearance for Turbine Blades with Typical Cracks

open access: yesInternational Journal of Aerospace Engineering, Volume 2022, Issue 1, 2022., 2022
As well known, the crack is a typical fault of turbine blades, which is difficult to detect due to the weak fault features contained in the rotor vibration. Although some fault diagnosis methods based on blade tip timing (BTT) are proposed to detect blade cracks, the limited fault features can be extracted because the BTT signals contain only one ...
Xiaodong Zhang   +6 more
wiley   +1 more source

A computational modeling of fully friction contact-interaction in linear friction welding of Ni-based superalloys

open access: yesMaterials & Design, 2020
A three-dimensional coupled thermo-mechanical model was developed to simulate the linear friction welding (LFW) of same or dissimilar Ni-based superalloys.
Peihao Geng, Guoliang Qin, Jun Zhou
doaj   +1 more source

Low-cycle fatigue life prediction of a polycrystalline nickel-base superalloy using crystal plasticity modelling approach [PDF]

open access: yes, 2020
A crystal plasticity model is developed to predict the cyclic plasticity during the low-cycle fatigue of GH4169 superalloy. Accumulated plastic slip and energy dissipation as fatigue indicator parameters (FIPs) are used to predict fatigue crack ...
Chen, Bo   +4 more
core   +1 more source

Modelling the Deformation, Recrystallization and Microstructure-Related Properties in Metals [PDF]

open access: yes, 2022
In the special issue related to Modelling the Deformation, Recrystallization and Microstructure-Related Properties in Metals, we presented a wide spectrum of articles dealing with modelling of microstructural aspects involved in deformation and ...

core   +1 more source

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