Results 11 to 20 of about 420 (136)

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 detailed process design for conventional friction stir welding of aluminum alloys and an overview of related knowledge

open access: yesEngineering Reports, Volume 3, Issue 2, February 2021., 2021
‐This review work discusses the friction stir welding process of aluminium alloys, highlighting the five parameters that are essential for the process to take place. ‐It presents the data extracted from thirty published articles, using this data, the authors of the current overview managed to deduce the common operating speeds, the common tool material,
Mohamed H. El‐Moayed   +3 more
wiley   +1 more source

[Retracted] Experimental Study on Surface Roughness and Flank Wear in Turning of Nimonic C263 under Dry Cutting Conditions

open access: yesJournal of Nanomaterials, Volume 2021, Issue 1, 2021., 2021
Aircraft component manufacturing sector is looking for high precision machining in aircraft components. The present work explores the operability of green manufacturing of Nimonic C263 using dry turning. Nimonic C263 is tough to turn owing to its inherent quality like low conductivity and more work hardening.
J. Francis Xavier   +6 more
wiley   +1 more source

A Torsional Vibration Measurement Method for Rotating Blades Based on Blade Tip Timing

open access: yesShock and Vibration, Volume 2021, Issue 1, 2021., 2021
During the working process of the turbine, some types of faults can cause changes in the vibration characteristics of the blades. The real‐time vibration monitoring of the blades is of great significance to the stable operation and state‐based maintenance.
Haonan Guo   +7 more
wiley   +1 more source

Machinability Research on TiAlN Coated Carbide Tool High-Feed Milling Superalloy

open access: yesJournal of Harbin University of Science and Technology, 2018
High-feed milling roughing process is a new method which has significant advantages in terms of improving efficiency in the processing difficult materials.
YAO Chang-feng   +3 more
doaj   +1 more source

High Temperature Oxidation Behavior of GH4169 Nickel Base Superalloy Under Different Grindings for Internal Combustion Engine [PDF]

open access: yesCailiao Baohu, 2021
In order to improve the high temperature oxidation resistance of GH4169 nickel base superalloy for internal combustion engine, the GH4169 nickel base superalloy’s surface was polished with different types of sandpaper, and then the oxidation resistance ...
LIU Yi-fu, ZHENG Jian-xin, SUN Rui-xia
doaj   +1 more source

Effect of Notch Structure and Notch Bottom Diameter on the Tensile Load of a Certain GH4169 Notch Bolt for a Device for Longitudinal Separation of Fairing

open access: yesMetals, 2022
The effect of the notch structure and bottom diameter of a GH4169 notch bolt for an explosive separation device used for longitudinal separation of the fairing, and GH4169 strength range on the tensile load was studied by combing simulations with tests ...
Xiaoliang Wang   +4 more
doaj   +1 more source

Microstructure stability of GH4169 and GH4169C alloys with high content of phosphorus and niobium

open access: yes工程科学学报, 2016
To study the microstructural stability of GH4169C alloy with high content of phosphorus and niobium, the microstruc-ture and hardness of GH4169C alloy and GH4169 alloy after long time aging were comparatively analyzed in this paper.
NI Tong-wei   +3 more
doaj   +1 more source

The Effect of Milling Cooling Conditions on the Surface Integrity and Fatigue Behavior of the GH4169 Superalloy

open access: yesMetals, 2019
The GH4169 superalloy has high strength at high temperatures. Cooling conditions have a major impact on the machined surface integrity, which further affects the fatigue properties of specimens of the GH4169 superalloy.
Rufeng Xu   +5 more
doaj   +1 more source

Effect of brazing temperature on microstructure and mechanical properties of GH4169/AgCuTi+W/Si3N4 joint

open access: yesJournal of Aeronautical Materials, 2022
Nickel-based superalloy (GH4169) and Si3N4 ceramics were connected by AgCuTi composite active filler and high purity W foil which acts as interlayer. The effects of temperature on the microstructure evolution and mechanical properties of GH4169/ Si3N4 ...
XUE Yang   +5 more
doaj   +1 more source

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