نتایج جستجو برای: Superalloy Inconel718

تعداد نتایج: 2344  

Journal: :international journal of advanced design and manufacturing technology 0
mojtaba kolahdoozan department of mechanical engineering, najafabad branch, islamic azad university, isfahan, iran farhad azimifar department of mechanical engineering, majlesi branch, islamic azad university, isfahan, iran saeed rismani yazdi department of mechanical engineering, majlesi branch, islamic azad university, isfahan, iran

in this research, our attempt is to monitor tool wear through the chip formations, forces, and temperature of edge of drill while drilling in superalloy plate to optimizes effective parameters, which lead to facilitate machining process to, improved tool life, and enhance the productivity. in this study, inconel718 superalloy material, and cemented coated carbide tool was selected for investiga...

Journal: :Materials Characterization 2021

Selective Laser Melted (SLM) Inconel718 (IN718) superalloy was linear friction welded (LFWed) to forged AD730™ Nickel-based superalloy. Successful joints free of micro-porosity, micro-cracking, and oxides were obtained. Microstructure variations across the weld line developed during LFW examined using different techniques, including laser confocal microscopy, scanning electron energy dispersive...

2014
Kang Yuan Ru Peng Xin-Hai Li Sten Johansson Yandong Wang Ru Lin Peng Yan-Dong Wang

In turbine engines, high temperature components made of superalloys may crack in a creep process during service. With the inward flux of the gases, e.g. oxygen and nitrogen, along those cracks, the microstructure of the superalloy substrate nearby the cracks may degrade by internal oxidation and nitridation. The aim of this study is to investigate and simulate the oxidation-nitridation-induced ...

2015
Peng Zhang Qiang Zhu Gang Chen Heyong Qin Chuanjie Wang

The fatigue behavior of a nickel-base superalloy was investigated under total strain-controlled mode at high temperature. The fatigue life, cyclic stress response behavior and hysteresis loop of the superalloy were investigated under isothermal low cycle fatigue (LCF) conditions. The superalloy exhibited cyclic hardening and softening behaviors during the process of fatigue loading. The hystere...

Journal: :International Journal of Solids and Structures 2023

High-pressure turbine disks are subjected to extreme mechanical and thermal loadings throughout their lifetime. This is the reason why during design of turboshaft engines, regulation rules impose on manufacturers demonstrate integrity rotating parts, especially disks, with over-speed experiments. To improve prediction rotation speed at burst, it essential study viscoplastic behavior fracture ma...

2004
D. Pate Y. V. Murty

A variety of cast pyrometR 718 alloy microstructures result from processing of different diameters of industrial scale ingots for producing superalloy forgings used in aircraft turbine engine applications. The hot workability of these cast alloys will significantly depend on the cast microstructure. The current study is focussed on understanding the evolution of the cast microstructure during V...

2013
Maodong Kang Haiyan Gao Jun Wang Lishibao Ling Baode Sun

The dimensionless Niyama criterion was used to predict the formation of microporosity in nickel-based superalloy casting, which extended the model application from a simple plate casting to complex thin-wall superalloy casting. The physical characteristics of the superalloy were calculated by JMatPro software. The relation between the volume percentage of microporosity and the dimensionless Niy...

2014
Joachim Rösler

A new method to adjust the pore size in superalloy membranes is shown, utilizing controlled cooling from solution heat treatment of the solid superalloy. Hereby, the nucleation rate and, thus, the size of the γ'-precipitates can be varied to a large extent. This leads to a corresponding variation in the pore size once the membrane material is produced by directional coarsening of the γ'-phase t...

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