1-20 of 375 Search Results for

fracture surface preparation

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Image
Published: 01 December 1992
Fig. 11 Overall appearance of fracture surface of exemplar impact coupon prepared from the hardened outer perimeter of the axle. Note lack of deformation. More
Image
Published: 01 December 1992
Fig. 12 Fracture surface of subsized impact coupon prepared from the hardened perimeter of the axle, showing cleavage rupture with river patterns. 3400×. More
Image
Published: 01 December 1992
Fig. 13 Overall appearance of fracture surface of exemplar impact coupon prepared from the axle core. Note deformation of sides of tested coupon. More
Image
Published: 01 December 1992
Fig. 14 Fractured surface of subsized impact coupon prepared from the axle core, exhibiting a mixed mode (brittle cleavage and ductile dimples) of rupture. 136×. More
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001035
EISBN: 978-1-62708-214-3
... retainer nut, adjacent to the keyway. Fig. 6 SEM micrograph of flat fracture characterstics in the area shown in Fig. 5 , composed of cleavage with river patterns. 4000×. Fig. 11 Overall appearance of fracture surface of exemplar impact coupon prepared from the hardened outer perimeter...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003532
EISBN: 978-1-62708-180-1
... Abstract This article provides a discussion on the metallographic techniques used for failure analysis, and on fracture examination in materials, with illustrations. It discusses various metallographic specimen preparation techniques, namely, sectioning, mounting, grinding, polishing...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006765
EISBN: 978-1-62708-295-2
... by the etchant. Coarse grinding scratches must be removed; even very fine polishing scratches may not be tolerable in examining failed parts. Pullout, pitting, cracking of hard particles, smear, and other preparation artifacts must be avoided. Relief (i.e., excessive surface-height variations between...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001162
EISBN: 978-1-62708-220-4
... Abstract Some 99.90 pure tin tubes (0.15 mm thick) used for packaging a chemical compound cracked on bending and underwent brittle fracture prior to filling, while others remained ductile and showed no sign of failure. Examination showed that specimens prepared by mechanical methods...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001324
EISBN: 978-1-62708-215-0
... Fig. 1 (a) Expansion joint section as received for analysis. (b) Secondary crack (arrows) before it was fractured open in the laboratory. Fig. 2 Secondary crack after it was fractured open in the laboratory. Fig. 3 SEM photographs typical of the fracture surfaces. (a) Crack...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c0047432
EISBN: 978-1-62708-224-2
... and etched with ammonium persulfate solution revealing that complete penetration had not been achieved at the weld root. The band observed in the fracture was apparently part of the unfused weld-preparation surface at the root of the weld. This failure was caused by fatigue that initiated at an incomplete...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c9001415
EISBN: 978-1-62708-236-5
... type. A creeping crack originated in the fillet at the inside surface of the pin and extended parallel to the plane of the web across practically the entire section before complete rupture occurred. The sprayed metal on the fractured pin had very poor adhesion. The surfaces of the main journals had...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0045918
EISBN: 978-1-62708-235-8
... To determine how these elements were combined in these small particles, plastic replicas were applied and pulled from the fracture surface, removing many of the particles. These replicas were prepared by standard TEM techniques and were analyzed with selected-area electron diffraction (additional information...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001110
EISBN: 978-1-62708-214-3
... Fig. 2 Transverse fracture surface with beach marks (indicated by arrow) revealed by different oxide colors. Fig. 3 SEM fractograph from a transverse fracture surface, showing a relatively rough fracture surface and fatigue plateaus. 315×. Fig. 4 SEM fractograph from...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003522
EISBN: 978-1-62708-180-1
... of field. Figure 11 shows a SEM view of a fracture surface, the excellent depth of field being apparent. Excellent results can also be obtained using replicas that are examined in the TEM. The procedure to prepare such replicas is time-consuming, however, so they are used only to a limited extent...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006757
EISBN: 978-1-62708-295-2
... to be conveyed when a report is prepared or when evidence is presented in court. In many cases, components have corrosion or other products on the fracture surfaces that hides surface details of the fracture. However, fracture surfaces, generally speaking, should not be cleaned until after their appearance...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c9001660
EISBN: 978-1-62708-236-5
... at the circumference of the fracture surface. At low magnifications, the band appeared featureless for practically the entire circumference on some pins. For others, the band was featureless only in isolated segments which constituted as little as 10% of the total circumference. In addition, the slope of the band...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001696
EISBN: 978-1-62708-234-1
... mottled appearance. Visual and stereomicroscopic examination of the tubing and fracture surfaces revealed the presence of corrosion pitting and longitudinal cracking on the exterior of the tubing, Figure 3 . Macroscopic examination disclosed that the mottled regions of the tube were actually...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c9001460
EISBN: 978-1-62708-221-1
.... The appearance of the fracture faces of the two welds is seen in Figures 1 and 2 , from which it is apparent that partial-penetration joints had been employed, the portions marked A representing the flame-cut nose of the weld preparation on the eye portions. This measured 1 4 in. wide on the joint...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001273
EISBN: 978-1-62708-215-0
... Fig. 1 An example of the fracture surface observed on the hanger rods. Fig. 2 A macrograph of the prepared section. The arrow points to an area of cracking. Fig. 3 Examples of the cracking observed in the hanger rods. Abstract One-quarter inch diameter 304...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0047583
EISBN: 978-1-62708-217-4
... penetrating to the support arm beneath, but revealed notch configurations at the inner mating surfaces at each edge of the fairing, the result of welding a poor fit-up of the support arm to the fairing. Fractures that originated at the cracks were examined by stereomicroscope and were found to contain fatigue...