Microstructure and mechanical properties at different length scales and strain rates of nanocrystalline tantalum produced by high-pressure torsion

Acta Materialia

Volumn 59, Issue 6, 2011, Pages 2423-2436

  Wei, Q ^a   Pan, Z L ^a   Wu, X L ^b   Schuster, B E ^c   Kecskes, L J ^c   Valiev, R Z ^d  

^a University of North Carolina at Charlotte   (United States)

^b INSTITUTE OF MECHANICS   (China)

^c U S ARMY RESEARCH LABORATORY   (United States)

^d Science and Education Center of Bashkir People History Ufa University of Science and Technology   (Russian Federation)

Author keywords

Adiabatic shear band; Mechanical properties; Microstructure; Nanocrystalline; Tantalum

Indexed keywords

ADIABATIC SHEAR BAND; ADIABATIC SHEAR BANDING; AVERAGE GRAIN SIZE; BCC METALS; BODY-CENTERED CUBIC; DIFFERENT LENGTH SCALE; DYNAMIC PLASTIC DEFORMATION; FACE-CENTERED CUBIC METALS; FOCUSED ION BEAM TECHNIQUE; HIGH PRESSURE TORSIONS; HIGH STRAIN RATES; HIGH-DENSITY; KOLSKY BAR; MICRO-SCALES; MICROCOMPRESSION; MICROHARDNESS MEASUREMENT; MICROSTRUCTURE AND MECHANICAL PROPERTIES; NANOCRYSTALLINES; NANOINDENTATION EXPERIMENTS; NON-EQUILIBRIUM GRAIN BOUNDARIES; PLASTIC DEFORMATION MECHANISMS; STRAIN RATE SENSITIVITY; STRESS-STRAIN BEHAVIORS; ULTRAFINE-GRAINED; YIELD STRENGTH;

ACTIVATION ENERGY; GRAIN BOUNDARIES; GRAIN SIZE AND SHAPE; HIGH RESOLUTION TRANSMISSION ELECTRON MICROSCOPY; ION BEAMS; MECHANICAL PROPERTIES; MECHANISMS; MICROSTRUCTURE; NANOINDENTATION; PLASTIC DEFORMATION; SCREW DISLOCATIONS; SHEAR BANDS; STRESS-STRAIN CURVES; TANTALUM; TORSIONAL STRESS;

STRAIN RATE;

EID: 79951680097     PISSN: 13596454     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.actamat.2010.12.042     Document Type: Article

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