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Defects in Metal Additive Manufacturing: Formation, Process Parameters, Postprocessing, Challenges, Economic Aspects, and Future Research Directions. [PDF]
3D Print Addit ManufHaribaskar R, Kumar TS.
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Fatigue testing of CFRP in the Very High Cycle Fatigue (VHCF) regime at ultrasonic frequencies
Composites Science and Technology, 2015Abstract Carbon fiber reinforced polymers (CFRP) are more and more used for high performance applications such as aircraft structures. These structural components are subjected with more than 108 cycles during their lifetime. At present the fatigue behavior of CFRP and the corresponding failure mechanisms are not sufficiently investigated in the VHCF
Frank Balle, Dietmar Eifler
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Cyclic deformation behaviour of railway wheel steels in the very high cycle fatigue (VHCF) regime
International Journal of Fatigue, 2011Abstract In the present contribution, the cyclic deformation behaviour of the railway wheel steels SAE 1050 and SAE 1060 was investigated in the very high cycle fatigue (VHCF) regime using a resonance testing device at a frequency of 200 Hz. The specimens were machined from the area of the ‘limiting-diameter’ of original monobloc-wheels.
Eberhard Kerscher +2 more
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The behavior of short fatigue cracks during Very High Cycle (VHCF) Fatigue of duplex stainless steel
Engineering Fracture Mechanics, 2015Abstract During VHCF loading of duplex steels fatigue damage starts within the softer austenite phase. Depending on the spatial mismatch between the slip systems of neighboring grains, intergranular or transgranular fatigue cracks are initiated. If these cracks can propagate or are blocked depends on the interactions with the local microstructure ...
Ullrich Pietsch +2 more
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International Journal of Fatigue, 2010
Abstract Austenitic–ferritic duplex steels are used for structural applications when high strength in combination with excellent corrosion resistance is required. Many of these applications imply cyclic loading and hence, fatigue damage needs to be considered for dimensioning.
Claus-Peter Fritzen +2 more
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Abstract Austenitic–ferritic duplex steels are used for structural applications when high strength in combination with excellent corrosion resistance is required. Many of these applications imply cyclic loading and hence, fatigue damage needs to be considered for dimensioning.
Claus-Peter Fritzen +2 more
exaly +2 more sources
Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing, 2021
Abstract High cycle and very high cycle fatigue (HCF/VHCF) in a bainite/martensite (B/M) multiphase steel with varying inclusion size and microstructural features was studied using ultrasonic axial cycling test. The fatigue crack initiation was predominantly induced by inclusions in specimens with large inclusion size, whereas fatigue crack initiated
R D K Misra, Guhui Gao, Bingzhe Bai
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Abstract High cycle and very high cycle fatigue (HCF/VHCF) in a bainite/martensite (B/M) multiphase steel with varying inclusion size and microstructural features was studied using ultrasonic axial cycling test. The fatigue crack initiation was predominantly induced by inclusions in specimens with large inclusion size, whereas fatigue crack initiated
R D K Misra, Guhui Gao, Bingzhe Bai
exaly +2 more sources
Materials Today: Proceedings, 2016
Abstract Selective laser melting (SLM) is a novel technique in laser additive manufacturing which uses laser energy to melt powder material according to the geometry of the computer aided design (CAD) model provided to the SLM system. The process uses a layer-wise manufacturing process which ensures that the manufactured parts possess good mechanical
Shafaqat Siddique +2 more
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Abstract Selective laser melting (SLM) is a novel technique in laser additive manufacturing which uses laser energy to melt powder material according to the geometry of the computer aided design (CAD) model provided to the SLM system. The process uses a layer-wise manufacturing process which ensures that the manufactured parts possess good mechanical
Shafaqat Siddique +2 more
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Volume 1: Codes and Standards, 2020
Abstract The fatigue assessment of safety relevant components is of importance for ageing management with regard to safety and reliability of nuclear power plants. For reactor internals, austenitic stainless steels are often used due to their excellent mechanical and technological properties as well as their corrosion ...
T. Daniel +6 more
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Abstract The fatigue assessment of safety relevant components is of importance for ageing management with regard to safety and reliability of nuclear power plants. For reactor internals, austenitic stainless steels are often used due to their excellent mechanical and technological properties as well as their corrosion ...
T. Daniel +6 more
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International Journal of Fatigue, 2017
Abstract The S–N curves at very high cycle fatigue (VHCF) regime for the base material and the friction stir welding (FSW) joint of 7050 aluminum alloy present multi-stage shapes with an inflection point at about 108 cycles in the study. In the regime between 1 × 106 and 5 × 107, the fatigue crack initiates at the thermo-mechanically affected zone ...
Baoming Gong, Yong Liu, Tinghui Yin
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Abstract The S–N curves at very high cycle fatigue (VHCF) regime for the base material and the friction stir welding (FSW) joint of 7050 aluminum alloy present multi-stage shapes with an inflection point at about 108 cycles in the study. In the regime between 1 × 106 and 5 × 107, the fatigue crack initiates at the thermo-mechanically affected zone ...
Baoming Gong, Yong Liu, Tinghui Yin
exaly +2 more sources