Dependence of dynamic fracture resistance on crack velocity in tungsten: Pt. 1. Single crystals

Journal Article · Fri Jun 01 00:00:00 EDT 1984 · Metall. Trans., A; (United States)

OSTI ID:5106665

Liv, J M; Shen, B W

The dependence of dynamic fracture resistance on crack propagation velocity on (100) in tungsten has been examined. A correlation is obtained between the measured local crack velocity with the surfac and subsurface deformations. Based on the experimental results on one pass, two passes, and prestrained, electron beam zone refined single crystals, a discussion is given on the slip modes activated at the crack tip, the contributions to the dynamic fracture resistance from dislocations and surface features and from the preexisting deformed microstructure.

• Research Organization: State Univ. of New York at Stony Brook, Stony Brook, NY
• OSTI ID: 5106665
• Journal Information: Metall. Trans., A; (United States), Vol. 15A:6
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
TUNGSTEN
CRACK PROPAGATION
FRACTURE PROPERTIES
DEFORMATION
DISLOCATIONS
ELECTRON BEAMS
FRACTOGRAPHY
MATHEMATICAL MODELS
MICROSTRUCTURE
MONOCRYSTALS
SLIP
SURFACE PROPERTIES
VELOCITY
ZONE REFINING
BEAMS
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
CRYSTALS
ELEMENTS
LEPTON BEAMS
LINE DEFECTS
MECHANICAL PROPERTIES
METALS
PARTICLE BEAMS
PROCESSING
REFINING
SEPARATION PROCESSES
TRANSITION ELEMENTS
360103* - Metals & Alloys- Mechanical Properties