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Rail steel

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Published: 15 January 2021
Fig. 11 Wear coefficient map for BS11 rail steel (relevant dimensionless K values in the inset are to be multiplied by 10 −4 ). Source: Ref 25 More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.rail.c0048087
EISBN: 978-1-62708-231-0
... Abstract Several of the welds in a hoist carriage tram-rail assembly fabricated by shielded metal arc welding the leg of a large T-section 1020 steel beam to the leg of a smaller T-section 1050 steel rail failed in one portion of the assembly. Four weld cracks and several indefinite indications...
Image
Published: 01 June 2019
Fig. 7 Rail Storage: Steel rails for a long term project were imported into Malaysia and stored in the open. A large proportion were placed in one stack 6 m by 6 m by 5 m high. The rails from this and other stacks were used progressively, being taken from the tops of the stacks. After 17 More
Image
Published: 01 June 2019
Fig. 1 Failure of a structural steel bolt in the rail assembly of an overhead crane. (a) Illustration of the crane rails and attendant support beams. (b) Shank portion of the failed bolt. (c) Fracture surface of the bolt showing evidence of reversed-bending fatigue More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.rail.c9001465
EISBN: 978-1-62708-231-0
... predominated. Castings Deflection Rollers Tensile stress Rail steel Fatigue fracture A rail section that failed due to fatigue is illustrated in Figure 1 . It shows a smooth surface with well-developed conchoidal markings, indicative of the successive stages of crack propagation characteristic...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001308
EISBN: 978-1-62708-215-0
... Abstract Persistent cracking in a forged 1080 steel turntable rail in a wind tunnel test section was investigated. All cracks were oriented transverse to the axis of the rail, and some had propagated through the flange into the web. Through-flange cracks had been repair welded. A section...
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
... Abstract To permit bolting of a 90 lb/yd. flat-bottomed rail to a steel structure, rectangular slots 2 in. wide x 1 in. deep were flame-cut in the base of the rail at 2 ft intervals to suit existing bolt holes. During subsequent handling, one of the rails (which were about 25 ft long...
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
... 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 fracture-type...
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
... Abstract A hi-rail device is a vehicle designed to travel both on roads and on rails. In this case, a truck was modified to accept the wheels for rail locomotion. The rear wheel/axle set was attached to the truck frame. Both the front and rear wheel/axle sets were raised by means of a hydraulic...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001780
EISBN: 978-1-62708-241-9
... microstructures. For pearlitic rail steels tested in the longitudinal direction, the endurance limits were found to vary with the sulfur content as mentioned in Table 5 [ 20 ]. No definite trend could be assigned to sulfur content; however, the fatigue limits presented in Table 5 were found to correspond best...
Image
Published: 01 January 2002
Fig. 19 Tram-rail assembly that fractured because of poor welding practices. (a) Section of tram rail as fabricated. T-section beam (1020 steel) is at top, T-section rail (1050 steel) is at bottom. (b) Enlarged view of welded area showing crack at toe of weld (arrow). (c) Crack in rail More
Image
Published: 01 June 2019
Fig. 1 Tram-rail assembly that fractured because of poor welding practices. (a) Section of tram rail as fabricated. T-section beam (1020 steel) is at top, T-section rail (1050 steel) is at bottom. (b) Enlarged view of welded area showing crack at toe of weld (arrow). (c) Crack in rail More
Image
Published: 30 August 2021
Fig. 40 Tram-rail assembly that fractured because of poor welding practices. (a) Section of tram rail as fabricated. T-section beam (grade 1020 steel) is at top, T-section rail (grade 1050 steel) is at bottom. (b) Enlarged view of welded area showing crack at toe of weld (arrow). (c) Crack More
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006837
EISBN: 978-1-62708-329-4
.... While the rails, wheels, and axles continue to be manufactured from plain carbon steels, there are variations encountered in rail and wheel steels wherein microalloying and pearlite refinement are employed to increase the wear resistance of the steel. In addition, many of the components have long...
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...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c0047113
EISBN: 978-1-62708-219-8
... Abstract A portion of a 19 mm (0.75 in.) diam structural steel bolt was found on the floor of a manufacturing shop. This shop contained an overhead crane system that ran on rails supported by girders and columns. Inspection of the crane system revealed that the bolt had come from a joint...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c0048048
EISBN: 978-1-62708-224-2
... Abstract A resistance-welded chain link made from 16 mm diam 4615 steel failed while lowering a 9070 kg load of billets into a rail car after being in service for 13 months. Beach marks, typical of fatigue were found to have originated at the inside of the link which broke at the weld. Cracks...
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 Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001129
EISBN: 978-1-62708-214-3
... Abstract The failure of a 45 Mg (50 ton) rail crane bolster was investigated. Spectrochemical analysis indicated that the material was a 0.25C-1.24Mn-0.62Cr-0.24Mo cast steel. SEM examination revealed the presence of fatigue, as well as intergranular and ductile fractures. Microstructural...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c9001499
EISBN: 978-1-62708-236-5
... Abstract Three spur gears made from 8622 Ni-Cr-Mo alloy steel formed a straight-line train in a speed reducer on a rail-mounted overslung lumber carrier. The gears were submitted for nondestructive examination and evaluation, with no accompanying information or report. Two teeth on one...