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Transgranular fracture

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Image
Published: 01 December 1992
Fig. 2 Brittle transgranular fracture surface crack produced by inservice failure. More
Image
Published: 01 December 2019
Fig. 8 SEM fractographs showing ( a ) primarily ductile transgranular fracture, ( b ) primarily transgranular fracture with some intergranularly fractured facets, ( c ) sensitized structure fractured in a ductile manner with dimples, and ( d ) stepwise crack advancement and transgranular More
Image
Published: 01 December 2019
Fig. 18 SEM of fracture surface of failed valve showing dimpled transgranular fracture near the mid-thickness position More
Image
Published: 01 December 1992
Fig. 9 Micrographs showing typical fracture surface morphologies. Transgranular fracture, characteristic of fatigue. Nital etch. (a) Screw No. 1. 63×. (b) Screw No. 4. 252×. More
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006774
EISBN: 978-1-62708-295-2
... of a component of interest in a failure investigation. Details on the mechanisms of deformation, brittle transgranular fracture, intergranular fracture, fatigue fracture, and environmentally affected fracture are also provided. brittle transgranular fracture creep fracture deformation ductile fracture...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001377
EISBN: 978-1-62708-215-0
... transgranular fracture failure mechanism. Water containing H7S was subsequently identified as the aggressive environment that precipitated the fractures in the presence of high tensile stress. This environment was generated by the chemical breakdown of the engine oil additive and moisture ingress...
Image
Published: 01 June 2019
Fig. 11 Scanning micrograph showing transgranular cleavage fracture in the remaining cross section during separation. More
Image
Published: 15 January 2021
Fig. 56 Transgranular cleavage fracture showing hairline indications (fine tear ridges) at A, together with tongues at B, shallow dimples at C, and secondary cracks at D. Fracture shown was produced in a specimen of 4315 steel by stress-corrosion cracking in a 3.5% NaCl solution. Transmission More
Image
Published: 01 December 1993
Fig. 2 SEM micrograph showing typical transgranular SCC fracture in a failed heater More
Image
Published: 01 December 1993
Fig. 3 SEM micrograph showing transgranular SCC and dimple fracture regions More
Image
Published: 01 December 1993
Fig. 2 SEM fractographs of the major fracture surface. (a) Typical transgranular SCC fracture. (b) intergranular attack followed by transgranular cracking. (c) Typical ductile fracture More
Image
Published: 01 December 2019
Fig. 4 Fractographs showing intergranular and transgranular mode of fracture after carefully opening the cracked surface (magnification 15×) More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0048782
EISBN: 978-1-62708-235-8
... of the head flange. The weld-metal hardness ranged from 84.8 HRB at the root pass to 99.3 HRB at the finish-pass crown—acceptable values for this material. There were no anomalies in the microstructure of either the weld metal or the base metal. The fracture path was clearly transgranular, with occasional...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c0046505
EISBN: 978-1-62708-219-8
... of the contact area was by ductile (transgranular) fracture. Recommendations included changing the latch material from malleable iron to silicon bronze (C87300). The use of silicon bronze prevents corrosion or galvanic attack and proper adjustment of the latch maintains an adequate contact area. Control...
Image
Published: 01 January 2002
Fig. 14 Fracture surface of a piece of polycrystalline alumina. The large grain in the center broke by transgranular fracture (note the fracture markings on its fracture surface). Most of the rest of the fracture shown in this image is intergranular. SEM; picture width ∼50 μm More
Image
Published: 01 December 2019
Fig. 17 SEM of fracture surface of failed valve showing predominantly intergranular fracture, with (possibly) a small area of transgranular fracture exhibiting fatigue striations ( arrowed ), near the inside surface of the valve More
Image
Published: 01 January 2002
Fig. 13 Fracture surface of a piece of polycrystalline alumina. Wallner lines, twist hackle, and gull wings are seen on the fracture surface of the large grain in the middle of the image. Fracture moved through this grain (transgranular fracture). Fracture around grains (intergranular fracture More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.petrol.c0048719
EISBN: 978-1-62708-228-0
... UNS S30400 Transgranular fracture Stress-corrosion cracking A tubular heat exchanger in a refinery reformer unit was found to be leaking after 1 month of service. The exchanger contained 167 type 304 stainless steel U-bent integral-finned tubes, 19 mm ( 3 4 in.) in outside diameter...
Image
Published: 01 December 1993
Fig. 7 SEM micrograph of region 11. Cleavage facets evident throughout indicate a transgranular fracture path. 670× More
Image
Published: 01 January 2002
Fig. 1 SEM images of (a) IG 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 (ASTM 65-40-10 More