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ductile fracture

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Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630101
EISBN: 978-1-62708-270-9
... Abstract Ductile fracture results from the application of an excessive stress to a metal that has the ability to deform permanently, or plastically, prior to fracture. Careful examination and knowledge of the metal, its thermal history, and its hardness are important in determining the correct...
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 August 2005
Fig. 6 Typical dimpled rupture fracture surface of a ductile fracture viewed at a magnification of 2000× and at an angle of about 40–50° to the fracture surface More
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Published: 01 December 1996
Fig. 5-62 Impact curves and % of fracture surface showing fibrous (ductile) fracture of a 3140 steel for different aging times at 500 °C. The samples were austenitized for one hour at 900 °C, water quenched, tempered for one hour at 675 °C, water quenched, then aged at 500 °C for the times More
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Published: 01 August 2005
Fig. 2.50 General fracture-surface regions from ductile fracture of an unnotched (a) and notched (b) tension test bar. (a) Radial zones on an unnotched point to the region of crack initiation near the center of the specimen. (b) In the notched tensile specimen, the fibrous zone surrounds More
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Published: 01 November 2007
Fig. 5.12 SEM micrograph of a ductile fracture surface on a 1018 steel. Original magnification 2300× More
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Published: 30 November 2013
Fig. 1 Brittle versus ductile fracture in two 1038 steel bolts deliberately heat treated to have greatly different properties when pulled in tension. The brittle bolt (left) was water quenched with a hardness of 47 HRC but had no obvious deformation. The ductile bolt (right) was annealed More
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Published: 30 November 2013
Fig. 9 Scanning electron images of a ductile fracture: (a) relatively equiaxed dimples at the center portion of the image, with some postfracture mechanical rubbing damage at the bottom portion of the image (50×); (b) elongated dimples indicating ductile rupture with a shear component More
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Published: 30 November 2013
Fig. 11 (a) Ductile fracture through type 420 stainless steel hardened to 51 HRC equivalent (1000×). (b) A woody texture, indicative of ductile fracture, through grade 9254 spring steel. More
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Published: 01 September 2008
Fig. 38 SEM micrograph showing a ductile fracture mode observed over the majority of both fracture surfaces. Original magnification: 1000×. Source: Ref 20 More
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Published: 01 September 2008
Fig. 2 Example of a macroscale ductile fracture in tensile loading More
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Published: 01 September 2008
Fig. 5 Example of a macroscale ductile fracture in torsional loading More
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Published: 01 September 2008
Fig. 1 Ductile fracture showing the typical cup-cone geometry More
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Published: 01 October 2011
Fig. 16.18 Cup-and-cone ductile fracture of a low-carbon steel bar under tension More
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Published: 01 November 2012
Fig. 1 Ductile fracture in 1038 steel bolt. The bolt was annealed to a hardness of 95 HRB (equivalent to 15 HRC) and shows tremendous permanent deformation. Source: Ref 1 More
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Published: 01 November 2012
Fig. 13 Examples of ductile fracture on shear planes. (a) Void sheets from propagation of a crack between widely spaced inclusions within a shear band in a 4340 steel. Stress axis is vertical. Reprinted with permission from ASTM STP600, Fractography—Microscopic Cracking Processes , copyright More
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Published: 01 July 1997
Fig. 2 Ductile fracture R curve More
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Published: 01 July 1997
Fig. 18 Percent ductile fracture vs. test temperature for the submerged arc bead-in-groove welds deposited in HY-80 steel. The numbers 1 through 4 accompanying the alloy designation represent heat input levels in kJ/mm. Source: Ref 16 More