High-frequency fatigue properties in
Fatigue Strength of Welded Ultra High Strength Steels Improved by High Frequency Hammer Peening
... Due to different plate thicknesses and partially different local weld geometries the influence factor of the yield strength cannot be analyzed explicitly. At relatively low plate thicknesses it is assumed that the ...
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Influence of Frequency on High Temperature Fatigue Behavior of 17 4 PH Stainless Steels
... steel, high-cycle fatigue, high temperature, frequency effect, creep ...mechanical properties, good fabrication characteristics and excellent corrosion ...
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Variable amplitude fatigue tests at high frequency hammer peened welded ultra high strength steel S1100
... Abstract During their operation, modern aircraft engine components are subjected to increasingly demanding operating conditions, especially the high pressure turbine (HPT) blades. Such conditions cause these parts ...
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The diaphragm: contractile properties and fatigue
... Centroid frequency or Distribution of power in diaphragm EMG as a function of Decreases only with high frequency fatigue high/low ratio frequency content of EMG signal. TTdi Tension-time[r] ...
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Influence of high-pressure gaseous hydrogen on the low-cycle fatigue and fatigue crack growth properties of a cast titanium alloy
... its high strength-to-weight ratio and good combination of strength and fatigue resistance up to 300°C ...mechanical properties, such as fracture toughness and fatigue properties are ...
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CONTRACTILE PROPERTIES OF A HIGH FREQUENCY MUSCLE FROM A CRUSTACEAN CONTRACTION KINETICS
... – high- frequency, twitch-like ...and fatigue resistance (extensive mitochondria and glycogen stores; Stokes and Josephson, ...and fatigue-resistant ...
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Fatigue Strength Improvement of Aluminum and High Strength Steel Welded Structures using High Frequency Mechanical Impact Treatment
... very high percentage of all fatigue failures locally occur at welded locations due to high tensile residual stresses and stress concentrations resulting from the weld ...process. High ...
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Influence of inclusion type on the very high cycle fatigue properties of 18Ni maraging steel
... cyclic properties of four maraging steels with different chemical compositions are ...ultrasonic fatigue testing equipment. The high cycling frequency in the range of 20 kHz allows ...
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CONTRACTILE PROPERTIES OF A HIGH FREQUENCY MUSCLE FROM A CRUSTACEAN MECHANICAL POWER OUTPUT
... After the optimum conditions had been identified, a trial using these conditions was collected and stored for later cycle-by-cycle analysis (see Fig. 2). In four preparations, the work and power output were first ...
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Bending Fatigue Properties of a Superelastic Thin Tube and a High Elastic Thin Wire of TiNi Alloy
... plane-bending fatigue properties of an SE-tube and an HE-wire made of TiNi alloys are therefore ...deformation properties of the materials were first obtained as the basic deformation ...plane-bending ...
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Fatigue improvement of steel bridges with high-frequency mechanical impact treatment
... , Architecture and Civil Engineering 13 3.1 The SN slope An example of an area of use of the MRD-method is demonstrated in this section. The method is used to find the SN slope, m, which gives the best fit accounting for ...
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Fatigue crack growth monitoring using high-frequency guided waves
... center frequency of ...center frequency (L = 250 mm), was selected so that the energy is mainly concentrated on the notched specimen side when reach- ing the ...The frequency content of the generated ...
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As cast high silicon ductile irons with optimised mechanical properties and remarkable fatigue properties
... mechanical properties of 25 as cast ferritic ductile iron alloys, nine of them with silicon contents higher than 3?00% and carbon contents lower than ...impact properties among the high silicon ...
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Fatigue properties of nanocrystallized surfaces obtained by high energy shot peening
... the fatigue-crack-initiation ...of fatigue cracks by grain boundaries, thus introducing crack closure and decreasing the rate of crack ...most fatigue cracks initiate from the surface and propagate ...
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High Temperature Fatigue Properties of a Si-Mo Ductile Cast Iron
... are high-temperature oxidation and thermo-mechanical ...stress-life fatigue tests up to 10 million cycles, as well as tensile and compressive tests, followed by fractographic examinations, and the ...
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High cycle torsional fatigue properties of 17-4PH stainless steel
... torsional fatigue loading condition is examined in the high cycle fatigue ...regime. Fatigue crack initiation and small crack growth behaviors were observed during fatigue testing and ...
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Investigation of anisotropic properties of musculoskeletal tissues by high frequency ultrasound
... functional properties in this system are bone and ...structural properties of both ...functional properties of musculoskeletal tissues in every day clinical ...functional properties of that ...
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Fatigue Crack Growth Properties of Typical Pressure Vessel Steels at High Temperature
... Abstract Fatigue failures often take place in high temperature pressure vessels and equipment because of fluctuation of pressure and ...temperature. Fatigue crack growth properties of ...
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High-frequency properties of systems with drifting electrons and polar optical phonons
... Abstract. An analysis of interaction between drifting electrons and optical phonons in semiconductors is presented. Three physical systems are studied: three-dimensional electron gas (3DEG) in bulk material; ...
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Effect of Fatigue Loading Mode on 718 Alloy Fatigue Properties
... about fatigue phenomenon were published since 1837 and inten- sively was investigated by Wöhler in ...various fatigue loading these sorts of ...alloy fatigue lifetime especially. The fatigue ...
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