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Article
Micromechanics and fatigue crack growth in an alumina-fiber-reinforced magnesium alloy composite
A study has been made of fatigue crack growth through the magnesium alloy ZE41A and a composite of this alloy reinforced with alumina fibers. Crack growth rates were measured and failure mechanisms characteriz...
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Article
Fracture surface roughness as a gauge of fracture toughness: Aluminium-particulate SiC composites
Fracture toughnesses of several composites of aluminium alloys reinforced with particulate SiC have been measured. The variables were particulate size and volume fraction, and matrix alloy composition and heat...
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Article
Fracture characteristics of Al-4 pct Mg mechanically alloyed with SiC
Subcritical crack growth and rapid fracture of the mechanically alloyed aluminum alloy IN-9052* reinforced with SiC particles have been investigated. Fatigue crack growth rates for the composite exceed those o...
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Article
Fatigue crack growth mechanics for Ti-6Al-4V (RA) in vacuum and humid air
The effects of environment and cyclic stress intensity factor on crack opening displacement and crack tip strain have been measured, and discontinuous crack growth has been observed directly under high resolut...
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Article
Flow localization accompanying the intergranular fracture of Ni3Al
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Article
Wear debris due to mode II opening of mode I fatigue cracks in an aluminum alloy
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Article
Crack-tip stresses as computed from strains determined by stereoimaging
Measurements of the three in-plane elements of the strain tensor near a crack tip have been combined with the material constitutive behavior to compute the three inplane elements of the stress tensor and the m...
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Article
Wear Debris Due to Mode II Opening of Mode I Fatigue Cracks in an Aluminum Alloy
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Article
The effect of water vapor on fatigue crack tip stress and strain range distribution and the energy required for crack propagation in low-carbon steel
The formation of a subgrain structure by the passage of a fatigue crack in low-carbon steel has been detected by backscattered electron imaging in the SEM. The distribution of subgrain sizes has been measured ...
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Article
Titanium alloy fatigue fracture facet investigation by selected area electron channeling
Flat regions (facets) found on fracture surfaces caused by initiation and propagation of fatigue cracks through the titanium alloys IMI-685 tested with and without a 5 min load dwell and Ti-11 have been examin...
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Article
Fatigue-crack-tip plastic strains by the stereoimaging technique
The stereoimaging technique is an accurate, high-resolution means of measuring the in-plane displacements resulting from the deformation of a specimen so that the corresponding components of the strain tensor ...
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Article
Fatigue Crack Propagation: New Tools for the Study of an Old Problem
New information on fatigue has been obtained by a cyclic-loading stage for the SEM which allows dynamic observation of the fatigue-crack propagation process. A detailed response of the material characteristics...
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Article
Fatigue crack tip plastic zone sizes in aluminum alloys
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Article
Environmental alteration of crack tip dislocation cell structure and mode of growth during fatigue crack propagation in ferritic steel
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Article
Fatigue crack tip plastic zones in low carbon steel
Microscopic plastic zone parameters at the tips of fatigue cracks in low carbon steel, as derived by the X-ray microbeam technique, have been correlated with measurement of some of the same parameters by the e...
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Article
Discussion of “plastic zone sizes in fatigued specimens of inco 718”
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Chapter
Cationic Grafting: The Synthesis and Characterization of Butyl Rubber-g-Polystyrene and PVC-g-Polyisobutylene
The discovery that certain alkylaluminum compounds (e.g. Et2AlCl, Et3Al, Me3Al, etc.) in conjunction with suitable alkyl halides (e.g. tBuCl, PhCH2Cl, etc.) are efficient initiating systems for the polymerization...
