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Railroad wheels

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220519
EISBN: 978-1-62708-259-4
... in the quenched and tempered condition. The chemical compositions and the heat treatment conditions are carefully adjusted to guarantee very fine pearlite in the rim region, as shown in Fig. 15.30 and 15.31 . Railroad car wheels are manufactured by forging ( Fig. 15.27 ) or casting in permanent...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.aceg.t68410001
EISBN: 978-1-62708-280-8
... (washers, dryers, dishwashers, mowers, cookware) Refrigeration and air conditioning (food industry, dairy products) Railroad Transportation (freight trucks, commuter trains) Commercial and military aircraft structures (door panels, stowing and seat brackets, speed brakes) Aerospace, aero...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420143
EISBN: 978-1-62708-310-2
... with carbon contents slightly or moderately higher than the eutectoid composition (i.e., hypereutectoid steels) have even lower toughness. Because of their low ductility/toughness, there are only a few applications for fully pearlitic steels, examples being railroad rails and wheels and high-strength wire...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 May 2018
DOI: 10.31399/asm.tb.hma.t59250013
EISBN: 978-1-62708-287-7
... coal in ironmaking, the life of ironmaking pioneer John Fritz, and the rapid increase in ironmaking for the railroads. anthracite coal charcoal iron ironmaking railroads Ironmaking commenced in the colonies as early as 1645 at the Saugus Iron Works in Massachusetts. This effort was never...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050245
EISBN: 978-1-62708-311-9
... to surface and near- surface flaws Limited to ferromagnetic material; surface preparation and post- inspection demagnetization may be required. Railroad wheels for cracks; large castings Source: Ref 4 Selection of nondestructive testing process (visual examination is always useful) Table 12.6...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300199
EISBN: 978-1-62708-323-2
... with railroads are usually made from cast steel. Cast irons—even ductile irons and malleable irons—lack the impact strength and ductility possible with cast steels. Railroad switch gear, wheels, and related equipment suffer abuse in service, such as sledge hammering to free frozen switches and the like; cast...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610415
EISBN: 978-1-62708-303-4
... are encountered in railroad wheels subjected to brake-shoe action, which generates temperature gradients and consequently internal stresses. On the other hand, thermal fatigue can develop even under conditions of uniform specimen temperature, instead caused by internal constraints such as different grain...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240153
EISBN: 978-1-62708-251-8
... (i.e., hypereutectoid steels) have even lower toughness. Because of their low ductility/toughness, there are only a few applications for fully pearlitic steels, examples being railroad rails and wheels and high-strength wire. A fully pearlitic rail steel provides excellent wear resistance during...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870001
EISBN: 978-1-62708-299-0
..., containers, cooking utensils, fasteners, hardware, highway signs, hospital and medical equipment, kitchen equipment, marine applications, railroad cars, recreation vehicles, trucks and trailers 5056 Cable sheathing, rivets for magnesium, screen wire, zippers, automotive applications, fence wire...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720001
EISBN: 978-1-62708-305-8
..., voids, inclusions, or material or geometry changes Inexpensive or moderate cost, sensitive both to surface and near- surface flaws Limited to ferromagnetic material; surface preparation and post-inspection demagnetization may be required Railroad wheels for cracks; large castings Source: Ref 8...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220667
EISBN: 978-1-62708-259-4
.... Figure 15.24 in this book presented the example of a fracture of a railroad axle. In the image, the wheel is still mounted on the axle and one can observe that the fracture occurred in a plane essentially transverse to the axle longitudinal axis and very close to the internal face of the wheel...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060175
EISBN: 978-1-62708-261-7
... is done by foundry processes such as green sand molding, chemically bonded sand molding (principally shell molding and no-bake), and permanent molding (typically to produce carbon steel railroad wheels in graphite molds). Small amounts of cast steel are also produced by investment casting (3...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.aceg.t68410091
EISBN: 978-1-62708-280-8
... 8XX.X Bushings and bearings for railroads Note: Sometimes the prefixes ‘A,’ ‘B,’ and ‘C’ are used to designate minor chemistry variances. For example, A319, B319, C355, and A357 denote sand permanent mold cast alloys, and A360, A380, A390, B390, and A413 denote die cast alloys. (a) Designation...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170242
EISBN: 978-1-62708-297-6
... drilling, steelmaking, railroading, dredging, lumbering, and in the manufacture of cement and clay products. Austenitic manganese steel is used in equipment for handling and processing earthen materials (such as rock crushers, grinding mills, dredge buckets, power shovel buckets and teeth, and pumps...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610001
EISBN: 978-1-62708-303-4
... with an endurance limit and aluminum with no endurance limit. Source: Ref 2 The discovery of fatigue occurred in the 1800s when several investigators in Europe observed that bridge and railroad components were cracking when subjected to repeated loading. As the century progressed and the use of metals...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 May 2018
DOI: 10.31399/asm.tb.hma.t59250001
EISBN: 978-1-62708-287-7
... of 127 feet ( FIG. 1.6 ). Cast iron continued to be used for major structures as late as 1850 when Robert Stephenson, the railroad builder, spanned the Tyne River at Newcastle. FIG. 1.6 The cast-iron aqueduct that carries the Llangollen Canal over the River Dee was built in 1805 by Thomas...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030117
EISBN: 978-1-62708-282-2
... in the vacuum of outer space. A serious fretting problem that has injury potential is the loosening of wheels or flywheels from shafts or axles. Railroad car wheels, for example, are shrink fitted onto their axles. If the wheel loosens from running vibrations and comes off during operation of the train...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.t60400087
EISBN: 978-1-62708-258-7
... coating is essentially pure aluminum. Specimen preparation is as follows. Submission 7 is a railroad rail. Submission 6 is a small section AISI/SAE 4340 forging. Submission 5 is a grade S-230 chilled cast iron shot. Submission 4 is a heat treated AISI/SAE 52100 steel bearing race...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290079
EISBN: 978-1-62708-306-5
... time. Remove the mold material and finish-grind the weld to railroad specifications. Conduct a final inspection of the weld, both visually and with the aid of ultrasonic equipment. Fig. 4.15 Typical crucible-mold setup for rail thermit welding. Source: Ref 4.10 The thermit...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300013
EISBN: 978-1-62708-323-2
... the pyramids. This is the evidence that liquids have been used to alter (reduce) friction for at least 5,000 years. Animal fats were known to be useful for lubrication of wheel bearings. Whale oils were used for all sorts of tribological applications as were many naturally occurring oils like rapeseed, castor...