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Transgranular fracture

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Image
Published: 01 October 2011
Fig. 16.20 Transgranular fracture modes in body-centered cubic (bcc) crystals. (a) Ductile fracture begins with shear deformation along the diagonal plane, which produces microvoids that eventually lead to fracture. (b) Brittle transgranular fracture (cleavage) occurs by tensile decohesion More
Image
Published: 01 July 2000
Fig. 7.95 Transgranular fracture surface of a specimen of 18Cr-10Ni steel illustrating the effect of emergent slip planes upon the lines of parallel tunnels indicated by the arrow. 5 N H 2 SO 4 + 0.5 N NaCl. 2000├Ś. Source: Ref 156 More
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240265
EISBN: 978-1-62708-251-8
... fracture, namely, rupture, transgranular fracture, and intergranular fracture. The next section focuses on some of the metallurgical instabilities caused by overaging, intermetallic phase precipitation, and carbide reactions. Subsequent sections address creep life prediction and creep-fatigue interaction...
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Published: 01 January 2017
Fig. 9.4 Scanning electron micrograph of a transgranular SCC fracture surface in Mg-7.6Al sheet tested in salt-chromate solution. Source: Ref 9.61 More
Image
Published: 01 June 2008
Fig. 18.21 Hydrogen-embrittled steels. (a) Transgranular cleavage fracture in a hydrogen-embrittled annealed type 301 austenitic stainless steel. (b) Intergranular decohesive fracture in 4130 steel heat treated to 1280 MPa (185 ksi) and stessed at 980 MPa (142 ksi) while being charged More
Image
Published: 01 September 2008
Fig. 64 ASTM B7 low-alloy steel bolt grade. Fracture initiated along threads, with typical and pronounced beach marks (i.e., cyclic fracture propagation) and transgranular fracture mode. (a) Location of bolts in pump coupling. (b) Beach marks showing asymmetrical bending with initiation More
Image
Published: 01 September 2005
Fig. 12 Auger electron spectra from case fracture surfaces of carburized 8620 steel. (a) From transgranular fracture surface. (b) From intergranular fracture surface. No phosphorus peak is detectable in the spectrum produced from the transgranular fracture, and a small phosphorus peak, clearly More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270067
EISBN: 978-1-62708-301-0
... and Results Scanning Electron Microscopy and Fractography A faceted/intergranular fracture zone was observed over a distance of about 1 mm from the leading edge followed by a transgranular fracture zone of about 11 mm ( Fig. CH2.2a, b ). The intergranular fracture at the leading edge of the blade...
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Published: 01 November 2010
transgranular fracture mode at the surface, transitioning to the bulk intergranular fracture mode. Source: Ref 18 More
Image
Published: 01 August 2005
Fig. 2.32 TEM image of fracture surface from a cemented carbide (94WC-6Co) after four-point bending test. The trapezoidal WC grain at center (transgranular fracture) exhibits Wallner lines (indicated by arrow), which result from the interaction between the advancing crack front More
Image
Published: 01 October 2011
Fig. 16.19 Scanning electron microscope (SEM) images of (a) intergranular fracture in the ion-nitrided surface layer of a ductile iron (ASTM 80-55-06), (b) transgranular fracture by cleavage in ductile iron (ASTM 80-55-06), and (c) ductile fracture with equiaxed dimples from microvoid More
Image
Published: 01 August 2005
Fig. 2.22 SEM images of (a) intergranular fracture in ion-nitrided layer of ductile iron (ASTM 80-55-06), (b) transgranular fracture by cleavage in ductile iron (ASTM 80-55-06), and (c) ductile fracture with equiaxed dimples from microvoid coalescence around graphite nodules in a ductile iron More
Image
Published: 01 December 2015
Fig. 17 Effect of the degree of order on the embrittlement susceptibility of Ni 2 Cr. Regions of intergranular (IG) and ductile transgranular fracture (TG) are shown. RA, reduction of area. Source: Ref 28 More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060385
EISBN: 978-1-62708-261-7
... the nature of the failure that occurred, the microscopic aspects of fracture can also be extremely useful in understanding the mechanisms of the failure process. On a microscopic scale, the nature of the fracture surface can be defined in terms of transgranular slip (ductile fracture), transgranular brittle...
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Published: 01 September 2008
Fig. 18 Region adjacent to the fractured region showing a transgranular crack generated in the casting process and masked by material deformation during the radio machining process, with propagation directed to the internal diameter More
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Published: 01 November 2012
Fig. 23 Transgranular and intergranular hydrogen embrittlement fractures. (a) Transgranular cleavage fracture in hydrogen embrittled annealed type 301 austenitic stainless steel; (b) Intergranular decohesion fracture in hydrogen embrittled 4130 steel heat treated to 1275 MPa (185 ksi). Source More
Image
Published: 01 August 2005
Fig. 2.41 Surface from fractured U-700 turbine blade. (a) Region with transgranular and intergranular fracture feature. (b) Debris on intergranular facets, may be indicative of oxidation at high temperature after creep cracking. Source: Ref 2.23 More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610415
EISBN: 978-1-62708-303-4
.... A macroscale brittle fracture is usually intergranular and occurs with little elongation or necking. In general, lower creep rates, longer rupture times, or higher temperatures promote intergranular fractures. Ductile fractures are transgranular and are typically accompanied by more pronounced elongation...
Image
Published: 01 December 2004
Fig. 33 Scanning electron micrographs illustrating transgranular and intergranular fracture topographies. (a) Transgranular cleavagelike fracture topography. Direction of crack propagation is from grain A through grain B. (b) Intergranular fracture topography More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540047
EISBN: 978-1-62708-309-6
... Abstract This chapter examines the phenomena of deformation and fracture in metals, providing readers with an understanding of why it occurs and how it can be prevented. It begins with a detailed review of tension and compression stress-strain curves, explaining how they are produced and what...