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Slip planes

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.design.c0048819
EISBN: 978-1-62708-233-4
... the crack origin were revealed by microscopic examination and cracking was found to be transgranular. Periods of corrosion alternated with sudden instances of cleavage, under a tensile load, along preferred slip planes were interpreted during examination with a microscope. It was concluded that the...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.med.c0048423
EISBN: 978-1-62708-226-6
... propagated through a larger gas pore by a ruptured gas pore. The stresses created through the fatigue process activated glide systems which served the formation of secondary cracks along glide planes. Crack propagation Porosity Slip planes Surgical implants ASTM F75 Fatigue fracture In a 65...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001802
EISBN: 978-1-62708-241-9
... unaffected. The damage begins as slip line formation due to plastic deformation, which progresses to cracking at high strain levels. The cracks appear to initiate from slip lines and extend in shear (mode II) manner. surgical wire fracture compressive damage nitinol cracking scanning electron...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.design.c9001424
EISBN: 978-1-62708-233-4
... Abstract Two examples concerning fabricated mild steel rotor spiders which failed due to lack of torsional rigidity, probably supplemented by the presence of high internal stress, are described. The machine concerned in the first case was a 3,000 hp three-phase slip-ring motor. In the second...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c9001617
EISBN: 978-1-62708-227-3
... air), and there was very limited plasticity. Macroscopic progression markings were observed on fracture surfaces of several couplings but were not generally evident. At very high magnifications, numerous slip lines, progression markings, and striations were observed. In a few cases, where complete...
Book Chapter

Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003562
EISBN: 978-1-62708-180-1
... Abstract This article reviews the general characteristics of fretting wear in mechanical components with an emphasis on steel. It focuses on the effects of physical variables and the environment on fretting wear. The variables include the amplitude of slip, normal load, frequency of vibration...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.petrol.c9001179
EISBN: 978-1-62708-228-0
... stresses that occurred after the tearing open of the pins by losening of the slip joint. The transverse cracks in the coarse threaded part of the pins are internally initiated stress cracks. Fig. 9 Fatigue fracture in fine threaded part of pin 1. In area of longitudinal cracks erosion through exuded...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.design.c9001232
EISBN: 978-1-62708-233-4
... Deformation by slip on the surface of a polished rod specimen (St 37) subjected to reverse bending, with beginning of crack formation (slightly etched during electropolishing). 200× Fig. 2 Axle journal with advanced stage of reverse bending fracture. 1 3 × Fig. 3 Fracture of the...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c9001471
EISBN: 978-1-62708-221-1
... the groove several times, producing “smearing” of the surface more-or-less in the same manner as arises from the slipping of sling rings, etc., in service. The outcome was the production of a fissure, and when a section through it was examined microscopically it was found that the characteristics of...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.med.c0048403
EISBN: 978-1-62708-226-6
... oriented grains. These planes exhibited crystallographically oriented mixed shearing structures and dimples ( Fig. 3c ), as well as traces of slip ( Fig. 3d ). Gas holes with dendritic freezing surfaces are shown in Fig. 3(e) . In the longitudinal section of a similar screw ( Fig. 3f ), large grains can...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c9001263
EISBN: 978-1-62708-224-2
... subsidiary cracks in the longitudinal section. 200 × Fig. 3 Cleavage of a pearlite grain. 1250 × It is well known that pronounced slip planes and cleavage cracks often form in ferritic steels which have become brittle due to ageing. On the other hand, this type of fracture in a predominantly...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001337
EISBN: 978-1-62708-215-0
...) suggests that they formed at sites associated with internal strain bands (possibly slip planes that formed in the steel from the original manufacturing of the tube) in the steel ( Ref 2 , 3 ). Thus, the term “slip-plane graphitization” has been coined. Nucleation then proceeds at sites of higher...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0089663
EISBN: 978-1-62708-229-7
... Handbook , ASM International , 2002 , p 587 – 626 10.31399/asm.hb.v11.a0003538 An examination of the microstructure revealed a concentration of precipitates on slip planes within grain boundaries. Fatigue loading increases the concentration of point and line defects, and these defects assist...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001366
EISBN: 978-1-62708-215-0
... crystallographic features have been observed on the fatigue surfaces of many metals and result from nonreversible slip on preferred planes. Slip bands of highly localized deformation are thus generated, resulting in extrusions and intrusions at the surface. These then penetrate along the length of the persistent...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006775
EISBN: 978-1-62708-295-2
... crystalline materials. Figure 2 is often used to illustrate the differences in mechanisms for slip and cleavage. A shear stress applied to the material parallel to the slip plane causes alternate rupture and self-healing of the interatomic bonds, resulting in permanent deformation. A normal stress applied...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003538
EISBN: 978-1-62708-180-1
... examine what is meant by “cleavage” in crystalline materials. A figure often used to illustrate the differences in mechanisms for slip and cleavage is that shown in Fig. 2 . A shear stress applied to the material parallel to the slip plane causes alternate rupture and self-healing of the interatomic...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.design.c0091538
EISBN: 978-1-62708-233-4
...-annealed resistance to SCC and greater improvement by cold reduction were found for alloy C64700 than for alloy C65500. Plastic deformation produced slip planes, lattice rotation, and curved bands in the grains, thus providing many new sites for attack that were “blind alley” paths for preferential...
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
... surfaces showing large fractions of cleavage may show cracking on more than one crystallographic plane within a given grain, leading to the most common feature associated with brittle faceted fracture—river lines, as previously noted. These lines may form by a ductile process, but the slip deformation that...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003537
EISBN: 978-1-62708-180-1
... caused by competing mechanisms of ductile crack nucleation, growth by slip deformation mechanism, and brittle cracking by cleavage. (As described later in this article, twinning is a transgranular mechanism of plastic deformation. Deformation twinning provides a limited amount of ductile deformation but...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006781
EISBN: 978-1-62708-295-2
... near the fracture surface of a single-crystal nickel-base superalloy tested in thermomechanical fatigue (TMF) conditions. Note the oxide spike emanating from the fracture surface and the oxidized slip planes. The oxide spike occurs along an active slip plane in this case. (b) External surface of a...