Results 41 to 50 of about 1,320 (253)

Diffusion bonding of copper alloy to nickel-based superalloy: effect of heat treatment on the microstructure and mechanical properties of the joints [PDF]

open access: yes, 2021
Successful joining of heat conducting materials, to high-temperature components is of significant importance for heat management in nuclear power plants and liquid propellant launch vehicles.
Shirzadi, Amir A., Zhang, Chengcong
core   +1 more source

Reliability analysis of elastic graphite packer in heat injection well during oil shale in-situ conversion [PDF]

open access: yes, 2022
Heat injection well reaches temperatures above 400 ◦C during the process of heat injection, Heat injection is essential for oil shale in-situ conversion technology.
Guo, Wei   +4 more
core   +1 more source

Non-Unified Constitutive Models for the Simulation of the Asymmetrical Cyclic Behavior of GH4169 at Elevated Temperatures

open access: yesMetals, 2022
The tensile, creep, fatigue and creep-fatigue tests of the nickel-based superalloy GH4169 were carried out. According to the deformation characteristics of GH4169 alloy, the Ohno-Karim kinematic model (O-K model) can be used to describe the tensile ...
Xuteng Hu   +4 more
doaj   +1 more source

Study on chip formation in grinding of nickel-based polycrystalline superalloy GH4169 [PDF]

open access: yesThe International Journal of Advanced Manufacturing Technology, 2021
Abstract Based on the variation of the actual cutting depth during the grinding process, a 3D finite element (FE) simulation model for grinding nickel-based superalloy GH4169 with single abrasive was initially constructed. Then the morphological evolution of the grinding chips during the grinding process was studied.
Tao Zhu   +5 more
openaire   +1 more source

Effect of temperature on the creep behavior and mechanism of GH4169 alloy

open access: yes工程科学学报, 2023
GH4169, a precipitation-strengthened nickel-based superalloy, has been extensively used in structural applications in temperatures up to 650 ℃ because of its high-temperature strength, long-term stability, thermal fatigue, creep resistance, corrosion ...
Sheng-yong GAO   +4 more
doaj   +1 more source

The Effects of Inhomogeneous Microstructure and Loading Waveform on Creep-Fatigue Behaviour in a Forged and Precipitation Hardened Nickel-based Superalloy [PDF]

open access: yes, 2017
The aim of the present paper is to identify the effects of sampling locations and loading waveforms on high-temperature low-cycle fatigue (HTLCF) and creepfatigue life of a forged and precipitation hardened nickel-based GH4169 superalloy.
Ainsworth   +48 more
core   +1 more source

Introduction on Research and Application of Nickel Base Superalloy GH4169

open access: yesIOP Conference Series: Earth and Environmental Science, 2021
Abstract In this paper, the research and application of nickel base superalloy GH4169 in recent years was introduced. GH4169 alloy is a precipitation strengthened nickel base superalloy, which has been widely used in aeroengine, petroleum, nuclear industry and other fields.
Jianjun Zheng   +4 more
openaire   +1 more source

Constitutive Equation of GH4169 Superalloy and Microstructure Evolution Simulation of Double-Open Multidirectional Forging

open access: yesMetals, 2019
This paper presented a double-open multidirectional forging with relatively few deformation passes and a uniform deformation. The constitutive equation and dynamic recrystallization model of the GH4169 superalloy were identified based on a thermal ...
Yongbo Jin   +6 more
doaj   +1 more source

Effects of Sequential Operation with Heat Treatment and Mechanical Milling on Work Hardening for Superalloy GH4169

open access: yesMetals, 2021
Engineering components are usually manufactured with sequential production processes. Work hardening due to previous production processes affects the machinability of the workpiece in subsequent operations. In this research, the surface work hardening of
Pingzhong Zhu   +4 more
doaj   +1 more source

Flow characteristics and intrinsic workability of IN718 superalloy [PDF]

open access: yes, 2015
This study focuses on deformation characteristics of superalloy IN718 by formulation of a new flowstress model and detailed evaluation of intrinsic workability through the generation of three-dimensional (3D) processing maps with the support of optical ...
Bin Lu   +53 more
core   +2 more sources

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