Results 121 to 130 of about 68,122 (285)
Stress-rupture strength and microstructural stability of tungsten-hafnium-carbon-wire reinforced superalloy composites [PDF]
Tungsten-hafnium-carbon - superalloy composites were found to be potentially useful for turbine blade applications on the basis of stress-rupture strength. The 100- and 1000-hr rupture strengths calculated for 70 vol.
Petrasek, D. W., Signorelli, R. A.
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Advanced Engineering Materials, Volume 28, Issue 8, 22 April 2026.The low cycle fatigue life of additive manufactured HAYNES® 282® superalloy was investigated for conventional and high‐productivity processing: samples of the former lasted 1400–1700 cycles, while samples of the latter failed at ~ 1200 cycles, at 760 °C and 1% strain.
Abdul Shaafi Shaikh +3 more
wiley +1 more source
Tungsten fiber reinforced superalloys: A status review [PDF]
Improved performance of heat engines is largely dependent upon maximum cycle temperatures. Tungsten fiber reinforced superalloys (TFRS) are the first of a family of high temperature composites that offer the potential for significantly raising hot ...
Petrasek, D. W., Signorelli, R. A.
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On the effect of Ti on Oxidation Behaviour of a Polycrystalline Nickel-based Superalloy [PDF]
, 2018 Titanium is commonly added to nickel superalloys but has a well-documented detrimental effect on oxidation resistance. The present work constitutes the first atomistic-scale quantitative measurements of grain boundary and bulk compositions in the oxide ...
Bagot, P. A. J. +8 more
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In-situ multi-scale deformation behaviors of Portevin-Le Chatelier bands in Al-Mg-Sc-Zr alloys
Materials Research LettersThis study investigates the multi-scale deformation behaviors of Portevin–Le Chatelier (PLC) bands in an Al-Mg-Sc-Zr alloy using in-situ scanning electron microscopy (SEM) tensile testing combined with multi-scale digital image correlation (DIC).
Bin Zhang +6 more
doaj +1 more source
Heat treatment for superalloy [PDF]
, 1987 A cobalt-free nickel-base superalloy composed of in weight % 15 Cr-5 Mo-3.5 Ti-4 Al-0.07 (max) C-remainder Ni is given a modified heat treatment.
Harf, Fredric H.
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Stress-rupture strength and microstructural stability of W-HF-C wire reinforced superalloy composites [PDF]
W-Hf-C/superalloy composites were found to be potentially useful for turbine blade applications on the basis of stress-rupture strength. The 100-and 1000-hour rupture strengths obtained for 70 volume percent fiber composites tested at 1090 C were 420 and
Petrasek, D. W., Signorelli, R. A.
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, 2018 Crack initiation and propagation under high-cycle fatigue conditions have been investigated for a polycrystalline Ni-based superalloy by in-situ synchrotron assisted diffraction and phase contrast tomography.
Gonzalez, D. +3 more
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Journal of Materials Research and TechnologyThis work conducted tensile experiments from room temperature to 1100 °C on a new fourth-generation single crystal superalloys along [001]. The effect of temperature on the tensile properties and deformation mechanism of the alloy were investigated ...
Shuli Zeng +9 more
doaj +1 more source
High-temperature strength of refractory-metal wires and consideration for composite applications [PDF]
Tensile and stress-rupture tests were conducted on wires of W-Hf-C, W-Re-Hf-C, ASTAR 811C (a tantalum alloy), and B-88 (a columbium alloy) at room temperature, 1093 C (2000 F), and 1204 C (2200 F).
Petrasek, D. W.
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