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brittle fractures

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Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630081
EISBN: 978-1-62708-270-9
... Abstract A brittle fracture occurs at stresses below the material's yield strength (i.e., in the elastic range of the stress-strain diagram). This chapter focuses on brittle fracture in metals and, more specifically, ferrous alloys. It lists the factors that must all be present simultaneously...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610055
EISBN: 978-1-62708-303-4
... Abstract This chapter discusses the causes and effects of ductile and brittle fracture and their key differences. It describes the characteristics of ductile fracture, explaining how microvoids develop and coalesce into larger cavities that are rapidly pulled apart, leaving bowl-shaped voids...
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Published: 01 August 2005
Fig. 2.43 Characteristics of crack direction and branching in fractures of brittle materials from (a) impact, (b) bending, (c) torsion, and (d) internal pressure More
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Published: 01 November 2012
Fig. 2 Appearance of (a) ductile and (b) brittle tensile fractures in unnotched cylindrical specimens. Courtesy of G. Vander Voort. Source: Ref 3 More
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Published: 01 December 2004
Fig. 19 Appearance of ductile (a) and brittle (b) tensile fractures. Source: Ref 28 More
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Published: 01 August 2018
Fig. 17.79 (a) Ductile fracture and (b) brittle fracture in ductile cast iron. SE, SEM. Not etched. The aspect of graphite and its role in the fracture process are evident. Courtesy of J. Sertucha, Azterlan, Centro de Investigacion Metalurgica, Durango, Bizkaia, Spain. More
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Published: 01 November 2012
Fig. 23 Surface of a torsional fatigue fracture that caused brittle fracture of the case of an induction-hardened axle of 1541 steel. The fatigue crack originated (arrow) at a fillet (with a radius smaller than specified) at a change in shaft diameter near a keyway runout. Case hardness More
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Published: 01 November 2012
Fig. 27 Brittle fracture of D6B steel equalizer bar. (a) Fracture surface of a large (~13.3 × 15 cm, or 5.25 × 6 in.) equalizer bar made from D6B steel heat treated to a hardness of 45–47 HRC. This bar, which supports the front end of a large crawler tractor, was in service for approximately More
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Published: 01 August 2005
Fig. 2.19 Brittle fracture of a smooth (unnotched) tensile test specimen. Source: Ref 2.10 More
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Published: 01 October 2005
Fig. CH20.4 Brittle fracture features from the brighter area shown in Fig. CH20.2 More
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Published: 01 October 2011
Fig. 16.17 Brittle fracture surface of a smooth (unnotched) tensile test specimen More
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Published: 01 September 2008
Fig. 3 Example of a macroscale brittle fracture in tensile loading More
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Published: 01 September 2008
Fig. 4 Example of a macroscale brittle fracture in tensile loading More
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Published: 01 September 2008
Fig. 5 Tensile testpiece of gray cast iron presenting brittle fracture More
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Published: 01 September 2008
Fig. 8 Fractograph of SAE 316L showing intergranular brittle fracture More
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Published: 01 September 2008
Fig. 34 Detail of the starting point of brittle fracture in the circular cross section of the component (arrow at bottom). The clustered arrows show the brittle crack tip front. More
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Published: 01 December 1989
Fig. 2.23. Decrease of critical flaw size for brittle fracture of a 2¼Cr-1Mo reactor vessel at 10 °C (50 °F) due to temper embrittlement ( Ref 65 ). More
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Published: 01 August 2018
Fig. 9.82 Cross section through the brittle fracture region of the heat-affected zone of a weld in a structural steel with 490 MPa (71 ksi) strength. Fracture close to the fusion line in an electrogas (high heat-input) weld. The large austenitic grain size and the layer of pro-eutectoid More
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Published: 01 August 2005
Fig. 3 Origin (at arrow) of a single-load brittle fracture that initiated at a small weld defect. Note also a fatigue fracture in the upper right corner. Radial ridges emanate from the origin in a fan-shaped pattern. More
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Published: 30 November 2013
Fig. 2 Sketch of pattern of brittle fracture of a normally ductile steel plate, sheet, or flat bar. Note the classic chevron or herringbone marks that point toward the origin of the fracture, where there usually is some type of stress concentration, such as a welding defect, fatigue crack More