Dislocation Mechanics of Metal Plasticity and Fracturing

• Other Authors: Armstrong, Ronald W. (Editor)
• Format: Electronic Book Chapter
• Language: English
• Published: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute 2020
• Subjects: Research & information: general; dislocation mechanics; yield strength; grain size; thermal activation; strain rate; impact tests; brittleness transition; fracturing; crack size; fracture mechanics; Hall-Petch equation; Griffith equation; size effect; mechanical strength; pearlitic steels; suspension bridge cables; dislocation microstructure; fractal analysis; plasticity; representative volume element; dislocation structure; dislocation correlations; dislocation avalanches; nanotwin; nanograin; Au-Cu alloy; micro-compression; Cu-Zr; ECAP; deformation; quasi-stationary; subgrains; grains; coarsening; ultrafine-grained material; dynamic recovery; transient; load change tests; Charpy impact test; GMAW; additive manufacturing; secondary cracks; anisotropy; linear flow splitting; crystal plasticity; DAMASK; texture; EBSD; crack tip dislocations; TEM; grain rotation; fatigue; dislocation configurations; residual stress; indentation; serration; temperature; dislocation; artificial aging; solid solution; loading curvature; aluminum alloy; holistic approach; dislocation group dynamics; dynamic factor; dislocation pile-up; yield stress; dislocation creep; fatigue crack growth rate
• Online Access: DOAB: download the publication; DOAB: description of the publication

The modern understanding of metal plasticity and fracturing began about 100 years ago, with pioneering work; first, on crack-induced fracturing by Griffith and, second, with the invention of dislocation-enhanced crystal plasticity by Taylor, Orowan and Polanyi. The modern counterparts are fracture m...