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Railroad wheels

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Image
Published: 01 August 2018
Fig. 15.27 Macrograph of part of the radial plane of a railway wheel produced using hot working (fibers characteristic of hot working are visible). Etchant: iodine. More
Image
Published: 01 August 2018
Fig. 15.28 Macrograph of part of the radial plane of a railway wheel produced by permanent mold casting. The dendritic structure is visible. The wheel tread, the flange, and part of the wheel side are darker due to accelerated cooling during the heat treatment. Etchant: hot hydrochloric More
Image
Published: 01 August 2018
Fig. 15.29 Macrograph of the radial plane of a railway wheel. The etching with nital 4% shows the region subjected to accelerated cooling (lighter, under the illumination conditions used) that does not reach the wheel flange, in this case. This etchant is not adequate for the observation More
Image
Published: 01 August 2018
Fig. 15.30 Railway wheel. Steel has a chemical composition very close to the eutectoid. Close to the tread, (a) deformed fine pearlite, (b) deformed fine pearlite and pro-eutectoid ferrite. (c) Away from the tread, still in the region subjected to accelerated cooling. Fine pearlite. Etchant More
Image
Published: 01 August 2018
Fig. 15.31 Radial section of a railway wheel. Region immediately below the tread. Fine pearlite. Etchant: nital 2%. Cracks caused by contact fatigue. Courtesy of MRS Logística S.A., RJ, Brazil. More
Image
Published: 01 August 2018
Fig. 17.62 Appearance of the fracture surface of an old railroad wheel, made from chilled cast iron. It is possible to clearly see the white regions (close to the tread and flange), gray regions (away from the tread, close to the central region), and the intermediate mottled region. More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220519
EISBN: 978-1-62708-259-4
... such procedures. engineering steel microstructure special bar quality steel carbon steel rail railway wheels The classification of engineering steels or, commonly known in the United States as special bar quality (SBQ) steels, was presented in Chapter 10 “Conventional Heat Treatment—Basic...
Image
Published: 01 March 2002
Fig. 3.55 Microstructure of a “wheel burn” condition on a railroad rail (eutectoid steel) showing the surface “white layer” and other layers. These layers are shown at higher magnification in Fig. 3.56 . 2% nital etch. 32× More
Image
Published: 01 August 2018
Fig. 15.24 Fatigue failure in a forged railway axle. The wheel is still mounted in the axle. The fracture started at the radius transition corresponding to the area of the axis where the wheel is assembled. The arrow indicates the initiation. Beach marks indicate that the crack propagated More
Image
Published: 01 December 1995
Fig. 2-6 Cast steel railroad freight car wheel, 33 in. (84 cm) in diameter, sections from 1 to 7 in. (2.5 to 18 cm) thick, weight 610 lb (277 kg) More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1995
DOI: 10.31399/asm.tb.sch6.t68200001
EISBN: 978-1-62708-354-6
... is currently in the development phase for steel castings. Graphite Molding Graphite molding utilizes graphite molds which are semi-permanent. Dimensional control and surface appearance are excellent. This is a highly specialized process suited mainly to parts like railroad wheels. Permanent Mold...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2022
DOI: 10.31399/asm.tb.isceg.t59320195
EISBN: 978-1-62708-332-4
.... 10.24 Bucket teeth The railroad industry has been using ADI for many applications. Wear tests of ADI railroad wheels have shown promise. They produce fewer cracks compared with steel wheels for identical trial durations. Also, ADI wheels offer a weight savings of nearly 10% over steel wheels...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2010
DOI: 10.31399/asm.tb.hss.t52790123
EISBN: 978-1-62708-356-0
... was built for Michelin with six rubber-tired wheels on each side. Budd built and sold three similar cars to three American railroads. Then, in 1932, the CB&Q Railroad ordered a three-car self-propelled stainless steel train that would have steel wheels and a diesel engine. Budd had revolutionized...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 June 2023
DOI: 10.31399/asm.tb.atia.t59340303
EISBN: 978-1-62708-427-7
... milestones as aluminum penetrated truck, bus, and rail applications to the present day: 1894: The New York, New Haven and Hartford Railroad built lightweight cars with aluminum seat frames 1905: First U.K. rail application (suburban line from Southport to Liverpool) 1910: Paris bus and Metro...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1995
DOI: 10.31399/asm.tb.sch6.t68200007
EISBN: 978-1-62708-354-6
... shock absorbers whose function is to dissipate dynamic longitudinal forces. They are made of carbon and low alloy cast steels. The railroad freight car wheel ( Figure 2-6 ) is a steel casting of approximately 0.75% carbon content and 130 ksi (896 MPa) tensile strength. It is designed and specially...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2010
DOI: 10.31399/asm.tb.hss.t52790229
EISBN: 978-1-62708-356-0
.... The restoration work was done at the AMF Technotransport, Inc. shops in Montreal. The program originally called for the upgrading of 181 stainless steel railcars. The E.G. Budd Manufacturing Company of Philadelphia had sold 157 of the cars to the Canadian Pacific Railway in 1955 to 1956. The remaining cars...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.aceg.t68410001
EISBN: 978-1-62708-280-8
... such as: Automotive Household appliances (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...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2022
DOI: 10.31399/asm.tb.isceg.9781627083324
EISBN: 978-1-62708-332-4
Series: ASM Technical Books
Publisher: ASM International
Published: 01 May 2018
DOI: 10.31399/asm.tb.hma.t59250013
EISBN: 978-1-62708-287-7
... to Honesdale and the aqueduct to carry the canal across the Delaware River. The first project was a system of inclines to carry the coal from the mines over Moosic Mountain down to the canal’s terminus. For part of this route, a railroad was constructed, and a young engineer by the name of Horatio Allen...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2022
DOI: 10.31399/asm.tb.isceg.t59320305
EISBN: 978-1-62708-332-4
... drums and large disc brake rotors for railroad and pig molds are popular applications. The application of CGI to ingot molds requires a careful cost–benefit analysis compared with the conventional high-carbon grades referred to in Chapter 4 , “ Influence of Microstructure on Mechanical Properties...