Interplay of stresses, plasticity at crack tips and small sample dimensions revealed by in-situ microcantilever tests in tungsten

作者: Johannes Ast , Mikhail N. Polyakov , Gaurav Mohanty , Johann Michler , Xavier Maeder

DOI: 10.1016/J.MSEA.2017.10.096

关键词: Composite materialFracture (geology)PlasticityFocused ion beamTungstenStructural engineeringYield (engineering)Scanning electron microscopeStress (mechanics)Materials scienceDislocation

摘要: … emission from the crack tip is observed leading to the distinct surficial slip traces in (2) where many dislocations are found. Upon crack growth more slip systems are activated which …

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