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During unaxial compression of copper single crystals an inhomogeneous dislocation structure develops. With the use of cross-correlation based analysis of electron backscatter diffraction (EBSD) patterns it is possible to map plastic... more
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      Electron Backscatter Diffraction (EBSD)High Resolution EBSD
Surface quality development on series of metal samples was investigated using a new Ar ion milling apparatus. The surface quality of samples was characterized by the image quality (IQ) parameter of the electron backscatter diffraction... more
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    •   3  
      Electron Backscatter Diffraction (EBSD)Scanning Electron MicroscopySample Preparation for Electron Microscopy
EBSD is a versatile tool providing grain size determination, orientation mapping, phase identification and 3D mapping. Since the EBSD information comes from a few tens of nanometers of the specimen surface regions the most critical issue... more
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      Electron Backscatter Diffraction (EBSD)Sample Preparation
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    • Scanning Electron Microscopy
Metals usually deform irreversibly as a result of the motion of dislocations that are line-like defects in the crystal lattice. Compression experiments of micron-scale specimens as well as acoustic emission (AE) measurements performed on... more
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    • Physics
Surface quality development on series of metal samples was investigated using a new Ar ion milling apparatus. The surface quality of samples was characterized by the image quality (IQ) parameter of the electron backscatter diffraction... more
    • by 
    •   3  
      Electron Backscatter Diffraction (EBSD)Scanning Electron MicroscopySample Preparation for Electron Microscopy
Primary creep regeneration phenomenon (PCR) has been systematically investigated for a 10%Cr martensitic steel. • PCR is governed by the evolution of internal stress and dislocation movement resistance of the steel during cyclic loading.... more
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      Materials EngineeringMechanical EngineeringMaterials ScienceMaterials Design
High angular resolution electron backscatter diffraction (HR-EBSD) was coupled with focused ion beam (FIB) slicing to characterize the shape of the plastic zone in terms of geometrically necessary dislocations (GNDs) in W single crystal... more
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      Materials EngineeringMechanical EngineeringPhysicsMaterials Science
The present investigation is directed to phase transitions in the equimolar NiCoFeCrGa high entropy alloy, which is a mixture of face-centered cubic (FCC) and body-centered cubic (BCC) crystalline phases. The microstructure of the samples... more
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    • Materials
Abstract Atomic force microscopy (AFM) is a well-known tool for studying surface roughness and to collect depth information about features on the top atomic layers of samples. By combining secondary ion mass spectroscopy (SIMS) with... more
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      Materials EngineeringPhysicsCondensed Matter PhysicsMaterials Science
With decreasing system sizes, the mechanical properties and dominant deformation mechanisms of metals change. For larger scales, bulk behavior is observed that is characterized by a preservation and significant increase of dislocation... more
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      PhysicsMaterials Science
Atomic force microscopy (AFM) is a well-known tool for studying surface roughness and to collect depth information about features on the top atomic layer of samples. By combining secondary ion mass spectroscopy (SIMS) with focused ion... more
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    •   6  
      Materials EngineeringPhysicsCondensed Matter PhysicsMaterials Science
Microscale dynamic testing is vital to the understanding of material behavior at application relevant strain rates. However, despite two decades of intense micromechanics research, the testing of microscale metals has been largely limited... more
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    • Physics
Based on the cross correlation analysis of the Kikuchi diffraction patterns high-resolution EBSD is a well established method to determine the internal stress in deformed crystalline materials. In many cases, however, the stress values... more
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      EngineeringPhysicsMaterials SciencePhysical sciences
High angular resolution electron backscatter diffraction (HR-EBSD) was coupled with focused ion beam (FIB) slicing to characterize the shape of the plastic zone in terms of geometrically necessary dislocations (GNDs) in W single crystal... more
    • by 
    •   4  
      Materials EngineeringMechanical EngineeringPhysicsMaterials Science
Compression experiments on micron-scale specimens and acoustic emission (AE) measurements on bulk samples revealed that the dislocation motion resembles a stick-slip process – a series of unpredictable local strain bursts with a... more
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    •   6  
      Materials ScienceMedicineMultidisciplinaryAcoustic Emission
Atomic force microscopy (AFM) is a well-known tool for studying surface roughness and to collect depth information about features on the top atomic layer of samples. By combining secondary ion mass spectroscopy (SIMS) with focused ion... more
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    •   12  
      Materials EngineeringPhysicsCondensed Matter PhysicsMaterials Science
Slow strain rate tests on hydrogen-containing specimens of PH13-8Mo maraging stainless steel showed Hassisted subcritical quasi-cleavage cracking, accelerating material failure. Fractographic analysis revealed that quasi-cleavage is... more
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      Materials EngineeringMechanical EngineeringCivil EngineeringMaterials Science
The dislocation microstructure developing during plastic deformation strongly influences the stressstrain properties of crystalline materials. The novel method of high resolution electron backscatter diffraction (HR-EBSD) offers a new... more
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    •   8  
      Materials ScienceCrystallographyMicrostructureElectron Backscatter Diffraction (EBSD)
Slow strain rates tests (SSRT) were conducted on hydrogen-containing specimens of PH13-8Mo maraging stainless steel. Hydrogen-assisted subcritical quasi-cleavage cracking was shown to take place during SSRT, thus accelerating material... more
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      Materials ScienceElectron Backscatter Diffraction (EBSD)MartensiteBrittleness