Results 151 to 160 of about 762 (184)

Effect of Undercooling on Microstructure Evolution in IN718 Superalloy

Rare Metal Materials and Engineering, 2013
The method of molten salt denucleating was applied to study the rapid solidification of IN718 superalloy. The highest undercooling up to 250 K was produced, and the microstructure evolution with undercooling was investigated. Based on the calculations of the dendritic tip radius, the dendrite growth velocity and undercooling, the solidification ...
Peng Zichao, Xie Faqin, Zhang Jun, Wu Xiangqing   +3 more
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Study of the Properties of Cold-Sprayed In718 Deposits

International Thermal Spray Conference, 2016
Abstract Inconel 718 is a precipitation-hardenable nickel-base superalloy with decent corrosion resistance, high strength at ambient temperature, and excellent creep and fatigue strength at high temperature. In this study, Inconel 718 was deposited by cold spraying with nitrogen and helium gas. Particle velocities were measured and splat
R. Huang, H. Fukanuma
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Investigation on the pulsed Nd:YAG laser drilling of IN718

ICALEO 2008: 27th International Congress on Laser Materials Processing, Laser Microprocessing and Nanomanufacturing, 2008
We report on an experimental study of the pulsed Nd:YAG laser drilling of IN718 for cooling holes in aero-engine components. The holes produced in this study are angled at 30o to the workpiece surface and were mainly produced by a spiral drilling technique.
Joonghan Shin, Jyoti Mazumder
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On the flow localization concepts in the processing maps of IN718

Materials Science and Engineering: A, 1999
On the basis of microstructural observations in titanium and its alloys, a limit on the workability parameters has been proposed in the literature for flow localization or fracture to occur during hot deformation of materials. In this letter, the fixed limit on the workability parameters is verified by considering the flow stress data and the ...
S.V.S.Narayana Murty, B.Nageswara Rao
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Blow Forming of Steel and IN718 for Propulsion Components

Advanced Materials Research, 2013
Blow forming technology has been used to produce glass and plastic components with easy and simple process. In order to apply this technology to metallic system, relatively high formability of material and elevated temperature are required. Since the blow forming temperature is quite high for metallic system, the main difficulty is to obtain adequate ...
Ho Sung Lee, Jong Hoon Yoon, Joon Tae Yoo, Ji Ung Choi   +3 more
openaire   +1 more source

Simulations of microporosity in IN718 equiaxed investment castings

Journal of Crystal Growth, 2001
A finite element model for simulating dendritic solidification of multicomponent-alloy castings has been enhanced to include the calculation of pressure and redistribution of gas-forming elements during solidification and cooling. The model solves the conservation equations of mass, momentum, energy and alloy components, and the gas-forming elements ...
P.K. Sung, D.R. Poirier, S.D. Felicelli, E.J. Poirier, A. Ahmed   +4 more
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Spot Segregation in Alloy IN718

Metallurgical and Materials Transactions A, 2023
S. Hans, J.-M. Ruppert, A. Mitchell
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TLP bonding of IN738/MBF20/IN718 system

Journal of Alloys and Compounds, 2016
Abstract The effects of temperature (1050, 1100 and 1150 °C) and time (1–20 min) on the microstructure of the transient liquid phase (TLP) joints of IN-738/MBF-20/IN-718 system were investigated using OM, SEM and SEM/EDS analysis. During bonding, no pressure was applied and just the weight of the upper specimen was effective.
A. Yarmou Shamsabadi, R. Bakhtiari, G. Eisaabadi B.   +2 more
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Effect of Frequency on the Fatigue Behavior of IN718 Superalloy

Advanced Materials Research, 2017
IN718 alloy possesses excellent mechanical properties at high temperatures, good process ability, therefore, it has been widely used in aero engine turbine disks, compressor disks, and power turbine shafts (i.e., rotating components). The fatigue properties of the alloy are a key factor that determines the safety and reliability of the engine.
Jin Hui Du, Xu Dong Lu, Qun Deng
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Tensile Performance of Direct Energy Deposited IN718 and Oxide-Dispersed Strengthened IN718

2023
Kyle Rozman, Bruce Kang, Ömer N. Doğan
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