Results 191 to 200 of about 1,427,164 (255)
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High cycle fatigue performance of AlSi10mg alloy produced by selective laser melting
, 2020Selective laser melting (SLM), which is an additive manufacturing (AM) technology, has been widely used in industrial fields. The inherent defects resulting from the SLM process are inevitable.
Z. W. Xu +5 more
semanticscholar +1 more source
Stress-Based Fatigue Analysis High Cycle Fatigue
2012So far, we have examined fatigue from a phenomenological point of view, describing the sequence of events that take place in metals from the early submicroscopic damage that precedes microcracks formation and eventually leads to the macrocrack generation.
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1994
Kovar®, an austenitic Fe-29Ni-17Co alloy, was tested in monotonic tension and axial fatigue at stress ratios (minimum stress/maximum stress) of R= -1 and 0.1. Two annealed microstructures, having grain sizes of 14 and 65 μm, were tested. The strainhardening exponent of tensile flow curves gradually increased with strain, and then remained constant at a
JA Wasynczuk +3 more
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Kovar®, an austenitic Fe-29Ni-17Co alloy, was tested in monotonic tension and axial fatigue at stress ratios (minimum stress/maximum stress) of R= -1 and 0.1. Two annealed microstructures, having grain sizes of 14 and 65 μm, were tested. The strainhardening exponent of tensile flow curves gradually increased with strain, and then remained constant at a
JA Wasynczuk +3 more
openaire +1 more source
, 2020
Build orientation is one of the important parameters in the selective laser melting (SLM) process that could alter the mechanical and fatigue properties of the fabricated parts.
P. Bayati +8 more
semanticscholar +1 more source
Build orientation is one of the important parameters in the selective laser melting (SLM) process that could alter the mechanical and fatigue properties of the fabricated parts.
P. Bayati +8 more
semanticscholar +1 more source
On the low-cycle fatigue response of CoCrNiFeMn high entropy alloy with ultra-fine grain structure
, 2020High Entropy Alloys (HEAs) are a new class of multi-component alloys with excellent tensile strength-ductility combination. Their yield strength levels, however, are still low as compared to other high strength materials.
S. Picak +7 more
semanticscholar +1 more source
Fatigue & Fracture of Engineering Materials & Structures, 2001
High‐cycle fatigue (HCF) failures in aircraft engines are attributed to material damage states, created during processing or by in‐service loading and environmental conditions, and then propagated to failure by HCF loading. The loading configuration experienced by aircraft engine turbine blades consists of an axial load caused by the centrifugal ...
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High‐cycle fatigue (HCF) failures in aircraft engines are attributed to material damage states, created during processing or by in‐service loading and environmental conditions, and then propagated to failure by HCF loading. The loading configuration experienced by aircraft engine turbine blades consists of an axial load caused by the centrifugal ...
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HIGH-CYCLE SPRING FATIGUE TEST MACHINE
Experimental Techniques, 1993A fatigue-test machine for simultaneous testing of up to 12 compression springs is described. The test machine successfully generates fatigue failure data in a short time at low cost. A cumulative probability plot is shown to illustrate the results of one of the tests run on this machine.
J.R. Michler, S.R. Bhonsle
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Surface roughness effect of SLM and EBM Ti-6Al-4V on multiaxial high cycle fatigue
, 2020As built Ti-6Al-4V parts obtained by SLM and EBM, often stress-released and HIP-treated, show a very rough surface which affects the fatigue properties.
Bastien Vayssette +3 more
semanticscholar +1 more source
, 2020
High-cycle fatigue testing of nickel-based superalloy Inconel 718 made by laser powder-bed fusion was performed on round uniform-gauge or hourglass specimens for various specimen orientations, stress ratios and surface conditions (as-built and machined).
D. Witkin +4 more
semanticscholar +1 more source
High-cycle fatigue testing of nickel-based superalloy Inconel 718 made by laser powder-bed fusion was performed on round uniform-gauge or hourglass specimens for various specimen orientations, stress ratios and surface conditions (as-built and machined).
D. Witkin +4 more
semanticscholar +1 more source
2018
In vielen Anwendungsbereichen werden Bauteile und Strukturen mit mehr als 107 Lastwechseln belastet. Beispielsweise sind Radsatzwellen und Eisenbahnrader innerhalb von wenigen Jahren nicht selten 109 Lastwechseln ausgesetzt. Auch Helikoptergetriebe haben nach einer Lebensdauer von 5000 h 109 und mehr Lastwechsel [4-1].
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In vielen Anwendungsbereichen werden Bauteile und Strukturen mit mehr als 107 Lastwechseln belastet. Beispielsweise sind Radsatzwellen und Eisenbahnrader innerhalb von wenigen Jahren nicht selten 109 Lastwechseln ausgesetzt. Auch Helikoptergetriebe haben nach einer Lebensdauer von 5000 h 109 und mehr Lastwechsel [4-1].
openaire +1 more source