Results 61 to 70 of about 1,320 (253)

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

Journal 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, ZHU Dongdong, TAO Feng, DONG Duo, WANG Xiaohong, MA Tengfei   +5 more
doaj   +1 more source

Joining by forming technologies: current solutions and future trends [PDF]

, 2022
The progressively more demanding needs of emissions and costs reduction in the transportation industry are pushing engineers towards the use of increasingly lightweight structures.
Buffa G., Fratini L., La Commare U., Merklein M., Romisch D., Wiesenmayer S., Wituschek S.   +6 more
core   +1 more source

Pore structure and performance of porous GH4169 superalloys preparedby laser additive manufacturing

Fenmo yejin jishu, 2023
Porous GH4169 superalloy materials with the different pore structures were prepared by selective laser melting technology. The effects of pore structure on the capillary and compressive mechanical properties were investigated by scanning electron ...
LIANG Jiamiao, BAI Xiaochengti, XU Jiongkai, ZHANG Liang, WU Wenheng, WANG Jun   +5 more
doaj   +1 more source

Evaluation of classical precipitation descriptions for γ′′(Ni3Nb−D022) in Ni-base superalloys [PDF]

, 2017
The growth/coarsening kinetics of γ′′(Ni3Nb−D022) precipitates have been found by numerous researchers to show an apparent correspondence with the classical (Ostwald ripening) equation outlined by Lifshitz, Slyozov and (separately) Wagner for a ...
A Baldan, A Devaux, C Slama, C Wagner, CKL Davies, CT Sims, DA Porter, E Schnabel, E. J. Palmiere, I. J. Moore, IJ Moore, IM Lifshitz, J Dong, JD Boyd, JL Zhang, JM Oblak, JM Oblak, L Wang, LM Suave, M Sundararaman, M Sundararaman, M Sundararaman, M. G. Burke, MA Shaikh, MC Chaturvedi, N. T. Nuhfer, R Cozar, V Shankar, Y Ji, YF Han   +29 more
core   +1 more source

Effect of Turning and Surface Polishing Treatments on Surface Integrity and Fatigue Performance of Nickel-Based Alloy GH4169

Metals, 2018
In this paper, the effects of turning and surface polishing treatments on surface integrity and fatigue properties of superalloy GH4169 were investigated.
Daoxia Wu, Dinghua Zhang, Changfeng Yao
doaj   +1 more source

A Novel Method for Predicting Residual Stress in GH4169 Machined Surfaces through Micro-Hardness Measurement

Applied Sciences, 2023
The presence of residual stress seriously affects the mechanical performance and reliability of engineering components. Here, the authors propose a novel method to determine corresponding residual stress through micro-hardness measurements of machined ...
Gonghou Yao, Zhanqiang Liu, Haifeng Ma
doaj   +1 more source

Heat treatment to eliminate anisotropy of microstructure and high-temperature tensile properties of GH4169 superalloy by selective laser melting

Cailiao gongcheng
The selective laser melted （SLM） GH4169 superalloy has a significant directional columnar dendritic solidification microstructure， which can cause severe mechanical property anisotropy and increase service risk.
ZHAO Haisheng, FANG Lijia, LIU Huan, DOU Kaiqin   +3 more
doaj   +1 more source

Study of Manufacturing Process of Holes in Aeroengine Heat Shield

International Journal of Aerospace Engineering, Volume 2019, Issue 1, 2019., 2019
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. The many holes that need to be machined on the heat shield are not only small in diameter but also dense, and GH3128 as a typical hard‐to ...
Anyuan Jiao, Weijun Liu, Giacomo V. Iungo   +2 more
wiley   +1 more source

Analysis of Tool Wear in GH4169 Material Milling Process

Lubricants, 2023
Nickel-based superalloy GH4169 is a material with strong mechanical properties and is difficult to process. In order to reduce tool wear during material processing and improve the workpiece surface processing quality, based on the finite element ...
Xueguang Li, Wang Zhang, Liqin Miao, Zhaohuan Pang   +3 more
doaj   +1 more source

A Modified Walker Model Dealing with Mean Stress Effect in Fatigue Life Prediction for Aeroengine Disks

Mathematical Problems in Engineering, Volume 2018, Issue 1, 2018., 2018
Mean stress effect plays an important role in fatigue life prediction, and it is discovered that maximum stress has nonnegligible influence on mean stress effect. Therefore, a modified Walker model is proposed to account for mean stress effect on fatigue life of aeroengine disks, which contains the influence of stress ratio and maximum stress on mean ...
Shan Lu, Yunlai Su, Mao Yang, Yan Li, Gregory Chagnon   +4 more
wiley   +1 more source