The Brittle Fracture of Metals at Atmospheric and Sub-Zero Temperatures

Tipper, C. F.

doi:10.1179/mtlr.1957.2.1.195

Cited by 12 publications

(9 citation statements)

References 8 publications

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“…"Hemngbone" fracture is a plane strain mode characterized by discontinuous crack growth. Repeated interception of the main crack with a series of secondary cracks results in a fishbone appearance (5)(6)(7). Sometimes plane stress shear lips flank the hemngbone pattern.…”

Section: Introductionmentioning

confidence: 99%

Fractography of injection molded polycarbonate acrylonitrile‐butadiene‐styrene terpolymer blends

Lee

Hiltner

Baer

1992

Polymer Engineering & Sci

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Fractography has been used in the post-failure analysis of single edge notched specimens of injection molded blends of polycarbonate (PC) and acrylonitrilebutadiene-styrene terpolymer (ABS). The mode of ductile tensile fracture of single edge notched specimens depended on composition. Plane stress shear tearing was observed in the composition range PC/ABS 90, ' 10 to 70/30 by weight where PC was the continuous phase. Intermediate compositions, PC/ABS 60/40 to 40/60, had a co-continuous or almost co-continuous phase morphology; these blends fractured by mixed mode pop-in, where a tunneling center crack relieved the triaxiality and permitted plane stress shear lips to form near the edges. Hemngbone fracture, a plane strain mode characterized by discontinuous crack growth, was observed when Al3S was the continuous phase, PC/Al3S 30/70 to 10/90. An S-shaped relationship was observed between the ductile-to-brittle transition temperature and the composition. Addition of AI3S to PC increased ductility up to PC/AI3S 70/30 and 60/40, which were the most ductile compositions. Further addition of Al3S decreased the ductility, and the least ductile compositions were PC/AT3S 30/70 and 10/90.

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Section: Introductionmentioning

confidence: 99%

Fractography of injection molded polycarbonate acrylonitrile‐butadiene‐styrene terpolymer blends

Lee

Hiltner

Baer

1992

Polymer Engineering & Sci

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“…Cleavage o r fracture is normally not observed along this plane in pure zinc but is in zinc alloys containing as little as 0.13 percent cadmium (ref. 10). These cracks were not present at -78' C.…”

Section: Temperature Effectsmentioning

confidence: 99%

Effect of Surface Films on Deformation of Zinc Single-Crystal Surface During Sliding

Buckley

1972

A S L E Transactions

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“…Structural metals often fail in a ductile manner. Although several mechanisms may be active in the ductile failure process (Noell et al, 2018), a commonly observed mechanism is transgranular fracture due to nucleation, growth, and coalescence of microscopic voids, where voids nucleate either by decohesion or cracking of intermetallic particles (Tipper, 1949;Rogers, 1960;Gurland and Plateau, 1963;Garrison and Moody, 1987). The ductile failure process can occur in various ways, which can broadly be categorized as localization-driven or coalescence-driven (see e.g.…”

Section: Introductionmentioning

confidence: 99%