... and brittleness of a second “dark” phase precipitate in the prior-β region. LOCA zirconium alloys residual ductility impurities microstructure fractography Journal of ASTM International, Vol. 5, No. 8 Paper ID JAI101148 Available online at www.astm.org S. A. Nikulin,1 A. B. Rozhnov,2 V. A. Belov,3 N...

... served as preferred paths for early crack propagation and decreased tensile ductility. biomaterials titanium alloys aging mechanical properties fractography Journal of ASTM International, September 2005, Vol. 2, No. 8 Paper ID JAI12780 Available online at www.astm.org J. I. Qazi,1 V...

... fatigue titanium notch sensitivity fractography Journal of ASTM International, July/August 2005, Vol. 2, No. 7 Paper ID JAI12786 Available online at www.astm.org Michael D. Roach,1 R. Scott Williamson,1 and Lyle D. Zardiackas1 Comparison of the Corrosion Fatigue Characteristics of CP Ti-Grade 4, Ti...

..., Mode II displacements, crack tip blunting, branching, and tunneling contributed to the transient fatigue crack growth behavior. titanium alloy fatigue crack growth tensile overloads compressive underloads temperature life predictions fractography Journal of ASTM International...

... measurements fractography Journal of ASTM International, September 2005, Vol. 2, No. 8 Paper ID JAI12434 Available online at www.astm.org Viatcheslav Grigoriev1and Robert Jakobsson1 Delayed Hydrogen Cracking Velocity and J-Integral Measurements on Irradiated BWR Cladding ABSTRACT: Propagation of an axial...

... and the laboratory failure time for both pH values. reinforced plastic mortar fiberglass sewer pipes strain Corrosion pipe stiffness axial tensile fractography Stephen W. Hopkins, 1Dirk H. Duffner 1,Paul R. Johnston 1, and Frederick J. McGarryz Long-Term Strain-Corrosion Behavior in RPM Sewer Pipes...

... to the transient fatigue crack growth behavior. titanium alloy fatigue crack growth tensile overloads compressive underloads temperature fractography Ralph I. Stephens,1Robert R. Stephens,2 and Dwight A. Schoenefeld3 Effect of Transient Loads on Fatigue Crack Growth in Mill Annealed Ti-62222 at -54...

... that delamination toughness is not a material property but is dependent on ply orientation. Delamination fractography mixed-mode bend failure criteria moisture ply interface mechanisms Emile S. Greenhalgh Land Sunil Singh] The Effect of Moisture, Matrix and Ply Orientation on Delamination Resistance...

... striations observed in the fiber imprints were also found to initiate from the fiber/matrix interface cracks. The morphology of the striations, however, depended on the magnitude of the fatigue loading. carbon fiber reinforced plastics CFRP fatigue delamination fractography Anders Sj6gren, I...

... The objective of this work is to demonstrate the applicability of quantitative fractography and fractal analysis to fracture processes in materials that exhibit R-curve behavior. In-situ toughened silicon nitride and baria-silica glass ceramics are used as model materials to demonstrate...

... microstructure actuator fractography amorphous polycrystalline R. Ballarini, I H. Kahn,2 N. Tayebi, 3and A. H. Heuer4 Effects of Microstructure on the Strength and Fracture Toughness of Polysilicon: A Wafer Level Testing Approach REFERENCE: Ballarini, R., Kahn, H., Tayebi, N., and Heuer, A. H., "Effects...

.... The understanding gained from both the experimental investigations and numerical simulations has led to guidelines for realistic modeling and rules for designing damage tolerant structures. skin-stringer panels delamination fractography finite-element modeling moving mesh structural failure Emile...

... of individual slip dislocations. post-irradiation deformation ferritic steel fractography dislocations voids David S. Gelles, l Margaret L. Hamilton, ~and Robin Schiiublin 2 Post-Irradiation Deformation Microstructures in Fe-9Cr Reference: Gelles D. S., Hamilton, M. L., and Sch~iublin,R., "Post...

... fractography J. A. Newman, I W. T. Riddell,2 and R. S. Piascik3 Effects of Kmx on Fatigue Crack Growth Threshold in Aluminum Alloys Reference: Newman, J. A., Riddell, W. T., and Piascik, R. S., "Effects of K on Fatigue Crack Growth Threshold in Aluminum Alloys," Fatigue Crack Growth Thresholds, Endurance...

.... Crack propagation was almost entirely brittle except for fracture of the zirconium liner, which was typically ductile. Fractography of the matrix exhibited nonsymmetrical chevron features with the crack front generally leading near the outside of the cladding. Detailed metallography demonstrated...

... embrittlement or stress corrosion cracking, an alternative to electrolytic cadmium plate (such as vacuum deposition), and finally, replacing all existing bolts in the field and in inventory with new or reinspected bolts. failure analysis fractography quench cracks AISI 8740 steel Victor K. Champagne...

... using fractography. Results indicate that variations in fiber diameter influence the apparent fiber fracture toughness (K 1c ), with higher K 1c values observed for decreasing fiber diameters. Observations also suggest that the location of the critical flaw may play a role in the fracture of Nicalon...

... rates obtained under several stress levels with crack size as small as 0.03 mm. fractography fatigue crack growth stress ratio crack closure small cracks R. Sunder 1, W. John Porter 1, and Noel E. Ashbaugh1 STRESS-LEVEL-DEPENDENT STRESS RATIO EFFECT ON FATIGUE CRACK GROWTH REFERENCE: Sunder...

.... Scanning electron microscopy was used to evaluate surface fatigue crack growth profiles and fatigue crack growth fracture surface morphology. titanium alloy threshold crack closure overload underload temperature delay fractography Robert R. Stephen& l Ralph L Stephens, 2 David E. Lemm, 2...

... fracture mixed-mode Mode I Mode II fracture toughness fractography shear fracture J -integral Gurson-Tvergaard model Anssi Laukkanen, 1 Kim Wallin, 1 and Rauno Rintamaa 1 Evaluation of the Effects of Mixed Mode I-II Loading on Elastic-Plastic Ductile Fracture of Metallic Materials REFERENCE...