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of 14
pro vyhledávání: '"John Rotella"'
Publikováno v:
Journal of Engineering for Gas Turbines and Power. 145
This paper presents the results of a comprehensive effort to characterize the properties of Inconel 718 produced by a form of laser powder bed fusion (LPBF) additive manufacturing (AM) or three-dimensional (3D)-printing, subsequently subjected to hot
Publikováno v:
Volume 7: Industrial and Cogeneration; Manufacturing Materials and Metallurgy; Microturbines, Turbochargers, and Small Turbomachines; Oil & Gas Applications.
This paper presents the results of a comprehensive effort to characterize the properties of Inconel 718 produced by a form of laser powder bed fusion (LPBF) additive manufacturing (AM) or 3D-printing, subsequently subjected to hot isostatic pressing
Autor:
Michael D. Sangid, Paul A. Shade, Jun-Sang Park, John Rotella, Diwakar Naragani, Peter Kenesei
Publikováno v:
Acta Materialia. 201:36-54
Polycrystalline alloys are used pervasively across structural applications contingent upon extensive experimental testing. A statistically representative number of tests are necessary to expose the variability in the material's performance, as a resu
Autor:
Michael D. Sangid, John Rotella
Publikováno v:
Fatigue & Fracture of Engineering Materials & Structures. 43:2270-2286
Autor:
Ritwik Bandyopadhyay, Diwakar Naragani, Michael D. Sangid, Jun-Sang Park, John Rotella, Michael Eff
Publikováno v:
Metallurgical and Materials Transactions A. 50:704-718
Residual strains in linear friction welds (LFW) of similar, Ti-6Al-4V (Ti64) welded to Ti-6Al-4V, and dissimilar, Ti-6Al-4V welded to Ti-5Al-5V-5Mo-3Cr (Ti5553), titanium alloys have been characterized using energy-dispersive X-ray diffraction. For e
Publikováno v:
International Journal of Fatigue. 116:490-504
Brittle constituent particles play a significant role in the fatigue behavior of 2XXX and 7XXX series aluminum alloys. In this work, in situ fatigue crack growth combined with x-ray synchrotron computed micro-tomography (μXSCT) characterization is u
Publikováno v:
JOM. 70:2485-2492
Critical rotating components used in the hot section of gas turbine engines are subject to cyclic loading conditions during operation, and the life of these structures is governed by their ability to resist fatigue. Since it is well known that micros
Autor:
Diwakar Naragani, Priya Ravi, Hemant Sharma, Alexander Finch, Jonathan Almer, Todd A. Book, John Rotella, Michael D. Sangid, Xianghui Xiao, Jun-Sang Park, Peter Kenesei
Publikováno v:
Additive Manufacturing. 22:479-496
The benefits of additive manufacturing have been well documented, but prior to these materials being used in critical applications, the deformation mechanisms must be properly characterized. In this work, the role of heat treatment and build orientat
Publikováno v:
Materials Characterization. 182:111552
At the macroscopic scale, strain accumulation is known to form parallel to the plane of maximum shear stress. In this work, plastic strain accumulation is tracked across four mesoscale areas of interests. Each representing a different configuration o
Publikováno v:
Integrating Materials and Manufacturing Innovation. 6:265-278
Traditionally, material design and property modifications are usually associated with compositional changes. Yet, subtle changes in the manufacturing process parameters can also have a dramatic effect on the resulting material properties. In this wor