Experimental Investigations Of Deformation Pathways In Nanowires
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Author |
: Andreas Sedlmayr |
Publisher |
: |
Total Pages |
: 0 |
Release |
: 2012 |
ISBN-10 |
: OCLC:1189896790 |
ISBN-13 |
: |
Rating |
: 4/5 (90 Downloads) |
Synopsis Experimental Investigations of Deformation Pathways in Nanowires by : Andreas Sedlmayr
Author |
: Andreas Sedlmayr |
Publisher |
: KIT Scientific Publishing |
Total Pages |
: 222 |
Release |
: 2014-07-30 |
ISBN-10 |
: 9783866449053 |
ISBN-13 |
: 3866449054 |
Rating |
: 4/5 (53 Downloads) |
Synopsis Experimental Investigations of Deformation Pathways in Nanowires by : Andreas Sedlmayr
This work deals with the experimental investigation of the mechanical properties of nanowires. Experiments are conducted in a dedicated system inside the electron microscope. The mechanical response of various material systems is probed, the underlying deformation mechanisms are elucidated and subsequently put into context with mechanical size effects.
Author |
: Straub, Thomas |
Publisher |
: KIT Scientific Publishing |
Total Pages |
: 234 |
Release |
: 2016 |
ISBN-10 |
: 9783731504719 |
ISBN-13 |
: 3731504715 |
Rating |
: 4/5 (19 Downloads) |
Synopsis Experimental Investigation of Crack Initiation in Face-Centered Cubic Materials in the High and Very High Cycle Fatigue Regime by : Straub, Thomas
This book investigates the fatigue mechanisms and crack initiation of Ni, Al and Cu on a small-scale in the Very High Cycle Fatigue regime by means of innovative fatigue experimentation. A novel custom-built resonant fatigue setup showed that the sample resonant frequency changes with increasing cycle number due to fatigue damage. Mechanisms such as slip band formation have been observed. Cyclic hardening, vacancy and oxidation formation may be considered as early fatigue mechanisms.
Author |
: Kumar, Amritesh |
Publisher |
: KIT Scientific Publishing |
Total Pages |
: 160 |
Release |
: 2017-11-06 |
ISBN-10 |
: 9783731506942 |
ISBN-13 |
: 3731506947 |
Rating |
: 4/5 (42 Downloads) |
Synopsis Micromechanical study on the deformation behaviour of directionally solidified NiAl-Cr eutectic composites by : Kumar, Amritesh
Author |
: Jochen Andreas Lohmiller |
Publisher |
: KIT Scientific Publishing |
Total Pages |
: 250 |
Release |
: 2014-05-22 |
ISBN-10 |
: 9783866449626 |
ISBN-13 |
: 3866449623 |
Rating |
: 4/5 (26 Downloads) |
Synopsis Investigation of Deformation Mechanisms in Nanocrystalline Metals and Alloys by in Situ Synchrotron X-ray Diffraction by : Jochen Andreas Lohmiller
In this work, different nanocrystalline metals and alloys were investigated by a synchrotron-based in situ XRD mechanical testing technique in order to investigate the dominant deformation mechanisms. All tested samples show a succession and coexistence of several mechanisms, regardless of grain size, loading condition, or sample geometry. However, the relative shares of the individual mechanisms strongly vary and depend on parameters such as grain size, sample purity, and alloy composition.
Author |
: Zhiming Chen |
Publisher |
: KIT Scientific Publishing |
Total Pages |
: 174 |
Release |
: 2014-07-31 |
ISBN-10 |
: 9783866449688 |
ISBN-13 |
: 3866449682 |
Rating |
: 4/5 (88 Downloads) |
Synopsis Modelling the Plastic Deformation of Iron by : Zhiming Chen
The 1/2111 screw dislocations in bcc iron are studied by atomistic simulations. An analytical yield criterion captures correctly the non-Schmid plastic behavior. A model Peierls potential develops a link between the atomistic modeling at 0 K and the thermally activated dislocation motion. All predicted features agree well with experimental observations. This work establishes a consistent bottom-up model that provides an insight into the microscopic origins of the plastic behavior of bcc iron.
Author |
: Matthias Friedrich Funk |
Publisher |
: KIT Scientific Publishing |
Total Pages |
: 218 |
Release |
: 2014-05-22 |
ISBN-10 |
: 9783866449183 |
ISBN-13 |
: 3866449186 |
Rating |
: 4/5 (83 Downloads) |
Synopsis Microstructural Stability of Nanostructured Fcc Metals During Cyclic Deformation and Fatigue by : Matthias Friedrich Funk
Nanostructured metals with maximal grain or twin sizes of less than 100 nm have advanced properties like increased strength.As beneficial as these microstructures can be for the strength of materials, they are not infinitely stable. During mechanical loading these metals tend to coarsen and lose their beneficial structure. Besides electron microscopic analysis of fatigued samples, in situ cycling tests were conducted in order to observe structural degradation during mechanical loading.
Author |
: Schwark, Tabea Gisela |
Publisher |
: KIT Scientific Publishing |
Total Pages |
: 178 |
Release |
: 2018-07-09 |
ISBN-10 |
: 9783731507598 |
ISBN-13 |
: 3731507595 |
Rating |
: 4/5 (98 Downloads) |
Synopsis Deformation and Fracture Properties of the Soft Magnetic Composite Somaloy 700 3P on Different Length Scales by : Schwark, Tabea Gisela
Soft Magnetic Composites (SMCs) typically consist of large iron particles coated with a fairly thin inorganic layer. The combination of soft particles with a brittle layer causes, however, a rather poor mechanical behaviour of the SMCs. The particle boundaries of the specific SMC Somaloy 700 3P can be classified into four different types according to the complexity of their layers. Tests on both micro- and macroscale showed that the particle-boundary interface is critical in terms of failure.
Author |
: Syha, Melanie |
Publisher |
: KIT Scientific Publishing |
Total Pages |
: 178 |
Release |
: 2014-09-25 |
ISBN-10 |
: 9783731502425 |
ISBN-13 |
: 3731502429 |
Rating |
: 4/5 (25 Downloads) |
Synopsis Microstructure evolution in strontium titanate Investigated by means of grain growth simulations and x-ray diffraction contrast tomography experiments by : Syha, Melanie
Understanding the physical processes during fabrication and annealing of ceramic materials is a long sought goal among material scientists. Using strontium titanate as a model system for perovskite ceramics, the present work combines advanced non-destructive 3D characterization techniques and computational modeling of microstructure evolution in order to link grain morphology, interface anisotropy and microstructure evolution to macroscopic physical properties .
Author |
: Feuchter, Manuel Klaus Ludwig |
Publisher |
: KIT Scientific Publishing |
Total Pages |
: 258 |
Release |
: 2014-10-01 |
ISBN-10 |
: 9783731502616 |
ISBN-13 |
: 3731502615 |
Rating |
: 4/5 (16 Downloads) |
Synopsis Investigations on Joule heating applications by multiphysical continuum simulations in nanoscale systems by : Feuchter, Manuel Klaus Ludwig
This work furthers the overall understanding of a 3w-measurement, by considering previously unexamined macroscopic influence factors within measurement by Finite Element simulations (FES). Moreover, new measuring configurations are developed to determine (an)isotropic thermal conductivities of nanoscale samples. Since no analytic solutions are available for these configurations, a new evaluation methodology is presented to determine emergent thermal conductivities by FES and Neural Networks.