Results 101 to 110 of about 17,204 (188)

Cryogenic minimum quantity lubrication in GH4169 machining: meshfree chip formation simulation and microstructural evidence of improved surface integrity

Materials & Design
Nickel-based superalloy GH4169 is widely used in aero-engine casings, but its high flow strength, strong work hardening, and low thermal conductivity make machining difficult and often lead to degraded surface integrity.
Dongbo Wu, Huilin Li, Hui Wang, Markus Bambach, Suet To, Mohamadreza Afrasiabi   +5 more
doaj   +1 more source

Finite Element Simulation of Microstructural Evolution during Inertia Friction Welding Process of Superalloy GH4169

, 2011
During the inertia friction welding (IFW) process of superalloy GH4169, the main mechanism for microstructural evolution is dynamic recrystallization (DRX).
Wei Xu, Li Wen Zhang, Chong Xiang Yue
core   +1 more source

Analysis on surface integrity of GH4169 nickel-based superalloy ground with belt

Jin'gangshi yu moliao moju gongcheng, 2016
Accumulated abrasive belt was used to grind nickel-based superalloy GH4169 at constant pressure.This method could control the pressure during grinding,so the impact of cutting force on grinding characteristics was reduced.By grinding nickel-based ...
SUN Chao, ZHANG Guojun, YIN Jiachao
doaj  

An Improved Model for Predicting Fatigue Crack Initiation Life of GH4169

, 2010
An improved model has been developed to predict fatigue crack initiation life using the criterion of minimizing the Gibbs free energy change considering plastic energy.
Dong Lei, Ge Li, Bin Kai Shi, Jian Hua Zhao   +3 more
core   +1 more source

Research on Surface Integrity of GH4169 Superalloy Processed by Laser Belt

Procedia CIRP, 2022
Guijian Xiao, Shuai Liu, Yi He, Yun Huang   +3 more
openaire   +1 more source

Influence of Pre-strain on the Microstructure and Mechanical Properties of GH4169 Superalloy

Journal of Physics: Conference Series
Abstract In this study, GH4169 superalloy was subjected to pre-straining after aging, with pre-strain deformations ranging from 0.2% to 10%. Subsequently, the tensile performance of the alloy was tested at various deformation levels. The microstructure of several pre-tensile deformed alloys was also examined.
Wentao Liu, Songyi Shi, Mingzhao Xie, Yaojie Liu, Hailong Qin, Yuting Lv   +5 more
openaire   +1 more source

Effect of machining allowance on machining quality in honing nickel-base superalloy

Jin'gangshi yu moliao moju gongcheng, 2016
For typical difficult-to-machine materials of nickel-base superalloy GH4169,honing experiments are carried out to study the hole surface roughness and cylindricity.Resultsshow that the surface roughness decreases gradually and tends to be stable as ...
DONG Hongliang, YANG Zhangyong, GAO Shaowu, FU Yucan, ZHOU Xiaowei, LIU Zhong   +5 more
doaj  

Effects of microstructure on room temperature fatigue crack initiation and short crack propagation in Udimet 720Li Ni-base superalloy

, 2008
An assessment of the effects of microstructure on room temperature fatigue crack initiation and short crack propagation in a Ni-base superalloy is presented.
Pang, H.T., Reed, P.A.S.
core   +1 more source

Combustion behavior of GH4169 and GH4202 superalloys in oxygen-enriched atmosphere

工程科学学报, 2016
Ignition-combustion test was carried out and the combustion samples of GH4169 and GH4202 superalloys were ana-lyzed by using optical microscopy, scanning electron microscopy and energy dispersive spectrometry. A model of mass transfer, heat transfer and oxygen transfer was built to analyze the combustion mechanism of the alloys. Some methods to improve
WANG Hong-liang, HUANG Jin-feng, LIAN Yong, ZHANG Cheng, ZHOU Qi-ming, LI Shu-kai, XUAN Tong   +6 more
openaire   +1 more source

Research on Cutting Layer Characteristics of Superalloy under High-Pressure Cooling. [PDF]

Materials (Basel), 2023
Li L, Chen S, Li T, Wu M.
europepmc   +1 more source