Results 31 to 40 of about 2,136,117 (274)

Microstructure evolution of creep damaged DZ411 superalloy during rejuvenation heat treatment

Journal of Aeronautical Materials, 2019
The simple solution and aging treatment processes were adopted to rejuvenate the microstructure of creep damaged DZ411 superalloy. The microstructure evolution of superalloy during rejuvenation process was investigated by OM and SEM, and then the ...
TANG Wenshu, XIAO Junfeng, GAO Sifeng, LI Yongjun, NAN Qing, ZHANG Jiong   +5 more
doaj   +1 more source

Numerical Research on the Jet Mixing Mechanism of the De-Swirling Lobed Mixer Integrated with OGV

Energies, 2023
The outlet guide vane (OGV) is integrated with the lobed mixer to improve the exhaust system’s performance with a high core inlet swirl. The best location for integrating the OGV is along the central line of the lobe’s trough and near the exit plane of ...
Zhijun Lei, Hanliu Deng, Xiaoqing Ouyang, Yanfeng Zhang, Xingen Lu, Gang Xu, Junqiang Zhu   +6 more
doaj   +1 more source

Numerical study of a two-stage transonic fan dynamic characteristics in transient processes

Propulsion and Energy
The transient performance of aero-engine during acceleration and deceleration processes has a significant effect on the maneuverability of the aircraft.
Fan Liu, Zhipeng Cao, Chaobin Guan, Longbo Zhao, Xiao Niu, Hong Yan   +5 more
doaj   +1 more source

Monitoring thermoacoustic instability: A comparative analysis of feature-based and end-to-end deep learning approaches

Applications in Energy and Combustion Science
This paper compares two data-driven frameworks for monitoring thermoacoustic instability (TAI) in a gas turbine combustor. A conventional machine learning approach using handcrafted features is contrasted with an end-to-end deep learning method employing
Jikang Wang, Yichen Wang, Yupeng Qin, Xuan Lv   +3 more
doaj   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

Advanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara, Vincent Rat, Quentin Dubreuil, Patrice Valorge, Simon Goutier, Alain Denoirjean, Olivier Messe, Céline Ruelle, Jean‐Philippe Poli   +8 more
wiley   +1 more source

Research progress on application of new thermal barrier coatings in advanced aero-engines

Journal of Aeronautical Materials
The operating temperatures of hot-section components in advanced aero-engines continue to increase，accompanied by increasingly severe service conditions.
TIAN Wei, GUO Huiming, LIU Yanfei
doaj   +1 more source

Experimental and Computational Analysis of the Unstable Flow Structure in a Centrifugal Compressor with a Vaneless Diffuser

Chinese Journal of Mechanical Engineering, 2019
The unstable flow phenomena in compressors, such as stall and surge, are closely related to the efficiency and the operating region. It is indispensable to capture the unstable flow structure in compressors and understand the mechanism of flow ...
Xiang Xue, Tong Wang
doaj   +1 more source

Influence of Scan Strategies in Electron Beam Powder Bed Fusion on Solidification, Microstructure, and High‐Temperature Compressive Properties of γ′‐Strengthened Inconel 738LC

Advanced Engineering Materials, EarlyView.
Experiments and thermophysical simulations were conducted to investigate the electron beam powder bed fusion electron beam (PBF‐EB/M) process for the γ′‐strengthened nickel‐based superalloy Inconel 738LC. The results demonstrate the impact of process‐induced microstructural variations on high‐temperature mechanical behavior, providing a basis for ...
Jan Niklas Petenati, Karthik Kumar Banku, Prasanth Bondi, Ivan Zhirnov, Yangyiwei Yang, Gordon Schmidt, Jürgen Christen, Georg Hasemann, Manja Krüger, Bai‐Xiang Xu, Bilal Gökce, Silja‐Katharina Rittinghaus   +11 more
wiley   +1 more source

Development and experimental study on linear friction welding titanium alloy blisk

Journal of Aeronautical Materials, 2020
Taking the advanced aeroengine compressor blisk as the application object, the development and experimental study on the TC11/TC17 different materials linear friction welding integral blisk was carried out. The microstructure of welded joint was analyzed,
LI Zuojun, TIAN Wei, ZHANG Tiancang, JI Yajuan, ZHONG Yan   +4 more
doaj   +1 more source