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brittle fracture

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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...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630071
EISBN: 978-1-62708-270-9
... in ductile and brittle metals. brittle metals ductile metals single-load fracture stress tension loading torsional loading compression loading IN ORDER TO UNDERSTAND how various types of single-load fractures are caused, one must understand the forces acting on the metals and also...
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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 January 2015
Fig. 11.6 Ductile and brittle fracture surfaces. (a) Mixture of coarse and fine depressions or dimples characteristic of ductile fracture surfaces. Some flat cleavage facets are shown in bottom of micrograph. (b) Flat fracture surface facets characteristic of brittle cleavage fracture More
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Published: 01 January 2015
Fig. 19.34 Circular area of brittle fracture around an inclusion particle and surrounded by ductile fracture in a hydrogen-charged quench and tempered 10B22 steel. Source: Ref 19.107 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: 01 October 2011
Fig. 16.17 Brittle fracture surface of a smooth (unnotched) tensile test specimen More
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Published: 01 December 2009
Fig. 12.3 Brittle fracture of a modified SAE 1050 (0.50% C, 0.95% Mn, 0.25% Si, 0.01% S, and 0.01% P) axle shaft due to single-bending impact load in a lab test. The hot rolled and upset shaft had an induction-hardened case (60 HRC) with a softer core (20 HRC). Failure occurred at the flange 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 December 2003
Fig. 26 Scanning electron image showing brittle fracture features at the crack initiation site, characteristic of environmental stress cracking. 24× More
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Published: 01 December 2003
Fig. 28 Scanning electron image showing brittle fracture features on the failed jacket crack surface. 20× More
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Published: 01 December 2003
Fig. 29 Scanning electron image showing features associated with brittle fracture and slow crack growth within the crack initiation site. 100× More
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Published: 01 December 2003
Fig. 39 Scanning electron image showing characteristic brittle fracture features on the housing crack surface. 100× More
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Published: 01 December 2003
Fig. 41 Scanning electron images showing (a) brittle fracture features on the failed hinge and (b) ductile fracture features on the laboratory fracture. 118× More
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Published: 01 December 2003
Fig. 22 Brittle fracture surface of a polyethylene gas pipe showing rib marking at crack arrest. 14.5× 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
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Published: 30 November 2013
Fig. 5 Surface of a torsional fatigue crack 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 was about More