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Railroad-rail steel

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.rail.c9001585
EISBN: 978-1-62708-231-0
... fracture with short-term exposure to an oxygen-rich environment. Fracture features emanated from longitudinally-aligned inclusions rich in aluminum. Inclusions Rails (railroad) Carbon-manganese steel Mixed-mode fracture The National Transportation Safety Board simultaneously investigates major...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.rail.c9001659
EISBN: 978-1-62708-231-0
... (railroad) Shell fractures Railroad-rail steel Fatigue fracture Rolling-contact wear In a recent Battelle study completed for the Department of Transportation (DOT) [ 1 ], it was found that nearly 10 percent of over 10,000 1-mile segments of revenue-service railroad rail contained one or more detail...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001376
EISBN: 978-1-62708-215-0
... Abstract An AISI 9260 steel railroad spike maul failed after a relatively short period of service. The maul head fractured in two pieces when struck against a rail. Visual, fractographic, metallographic, and chemical analyses were conducted on sections taken from the maul head, which was found...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003566
EISBN: 978-1-62708-180-1
... (10 lb) from 1.5 m (5 ft) ANSI B209.1-1991 Chisels Carbon or alloy steel (ASTM A29, A322, A331, A576, A681) Struck face: 45 max Cutting edge: 53–60 Drop-weight test Note: All railroad striking/struck tools are currently manufactured from the grade B steel. Nonpercussion tools, such as claw...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.rail.c9001665
EISBN: 978-1-62708-231-0
... the casting fractured as a result of the derailment, the fracture followed the scale in the contaminated region thus creating the “rock candy” fracture. Copper Inclusions Rail steels Rock candy fracture Fe-0.25C Intergranular fracture In December 1977, a freight train derailed near...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.rail.c9001444
EISBN: 978-1-62708-231-0
... steel in the regions of the slots possessed little capacity for deformation, and fracturing of the martensitic layer, under cooling or impact stresses, would be likely to occur. The slots should have been cut mechanically. Impact Martensite Phase transformations Rails (railroad) Fe-0.55C...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.rail.c9001531
EISBN: 978-1-62708-231-0
..., and ductility are mainly determined by the carbon content of wheel steels. The fatigue crack growth resistance is insensitive to composition and microstructure, while the fatigue crack initiation life increases with the decrease of austenite grain size and pearlite colony size. The dynamic fracture...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.rail.c9001138
EISBN: 978-1-62708-231-0
... effects, failure of the thread structure of the clevis occurred. The failure occurred where the cylinder rod screws into the clevis. The rod was manufactured from 1045 steel. Cylinder rods Fretting fatigue Galling Railroad wheels 1045 UNS G10450 Fatigue fracture Fretting wear...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001822
EISBN: 978-1-62708-241-9
... recommended practice for Railroad Transportation of Line Pipe. It was recognized that larger-diameter thinner-walled pipe is inherently more susceptible to transit fatigue [ 4 , 5 ]. The recommended D/t ratio was reduced from 70:1 to 50:1 in the 1990 edition of API RP5L1 [ 5 ]. One comparison of rail and...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003507
EISBN: 978-1-62708-180-1
... in steels, particularly in forgings, heavy-section alloy plate steels, and railroad rails, has been an ongoing problem since the beginning of steelmaking and is reviewed in Ref 6 . At still higher concentrations of hydrogen in metal, blistering can occur (e.g., see Fig. 18 of “Visual Examination...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001398
EISBN: 978-1-62708-229-7
... sulfate Steam pipes Welded joints Cr-Mo steel Stress-corrosion cracking Intergranular fracture Several bellows of the articulated, unit type — 10 in. i.d. — developed leakage from the convolutions after a service life of some 18 months. One of the units received from examination showed cracking...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.rail.c9001719
EISBN: 978-1-62708-231-0
... steel was then wetted with molten brass and catastrophic failure occurred. Microscopic analysis showed that copper had penetrated the surface and spread into the steel. In 1954, Magnuflux Corp. conducted a study on two failed railroad axles 4 . The axles exhibited visible copper color in the cracks...
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
..., with an additive for corrosion protection and lubrication, should be directed uniformly into the cut. Wet cutting produces a smooth surface finish and, most importantly, guards against excessive surface damage caused by overheating. Figure 1 shows the surface of quenched and tempered A2 tool steel...
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
... their brittle nature. Such a condition is often observed on steel railroad rails where cracking and spalling has occurred. Figure 42 shows an example of surface cracking near a spall on a 136 lb/yd rail. Microstructural examination revealed three regions at the surface. The outer zone is featureless...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003505
EISBN: 978-1-62708-180-1
... is a condition or changing set of circumstances that present an injury potential (e.g., a railroad crossing at grade, a toxic chemical, a sharp knife, the jaws of a power press). Risk is the probability of injury and is affected by proximity, exposure, noise, light, experience, attention arresters...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006764
EISBN: 978-1-62708-295-2
... Magnetic particles are attracted to breaks in magnetic lines of force. Near-surface flaws sensitive to magnetization; includes blow holes, laps, and cracks Not applicable to nonmagnetic metals or material Can detect flaws up to 6.3 mm (¼ in.) below surface under good conditions Iron and steel, nickel...