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Article
Evolution of the two-phase microstructure L12 + DO22 in near-eutectoid Ni3(Al,V) alloy
Transmission electron microscopy and powder x-ray diffraction methods have been used to investigate the evolution of two-phase (L12 + DO22) microstructures from the quenched fcc phase of the Ni-5Al-20V (at. %) al...
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Article
Alpha case thickness modeling in investment castings
The alpha case thickness at the surface of a Ti-6Al-4V (wt pct) step wedge investment casting has been measured and successfully predicted. The prediction uses temperature-time results obtained from a heat flo...
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Article
Moving the pulsed heating technique beyond monolithic specimens: Experiments with coated wires
Pulsed heating experiments that measure high-temperature thermophysical properties using pyrometric measurement of the temperature–time history of metal specimens rapidly heated by passage of electric current ...
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Article
The Influence of Annealing Temperature and Time on the Formation of δ-Phase in Additively-Manufactured Inconel 625
This research evaluated the kinetics of δ-phase growth in laser powder bed additively-manufactured (AM) Inconel 625 during post-build stress-relief heat treatments. The temperatures ranged between 650 °C and 1050...
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Article
Solidification of Ni-Re Peritectic Alloys
Differential thermal analysis (DTA) and microstructural and microprobe measurements of DTA and as-cast Ni-Re alloys with compositions between 0.20 and 0.44 mass fraction Re provide information to resolve diffe...
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Article
Location-Specific Microstructure Characterization Within IN625 Additive Manufacturing Benchmark Test Artifacts
Additive manufacturing (AM) of alloys creates segregated microstructures with significant differences from those of traditional wrought alloys. Understanding how the local build conditions generate specific mi...
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Article
Open AccessLocation-Specific Microstructure Characterization Within AM Bench 2022 Laser Tracks on Bare Nickel Alloy 718 Plates
Additive manufacturing of metal alloys produces microstructures that are typically very different from those produced by more traditional manufacturing approaches. Computer simulations are useful for connectin...