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Steelmaking

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.steel.9781627082327
EISBN: 978-1-62708-232-7
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001746
EISBN: 978-1-62708-217-4
... mechanism. As for the factors involved, cadmium plating, acid pickling, and steelmaking processes introduce hydrogen on part surfaces. As a second contributing factor, both bolts were 10 Rc points higher in hardness than specified (25 Rc), lessening ductility and notch toughness. A third factor...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.steel.c9001490
EISBN: 978-1-62708-232-7
... introduced during the steelmaking process. Leakage Liquid metals Magnesium base alloys Melting pots Nonmetallic inclusions 1022 UNS G10220 1020 UNS G10200 Erosive wear (Other, general, or unspecified) processing-related failures A steel pot used to hold molten magnesium alloys leaked...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c9001591
EISBN: 978-1-62708-227-3
... as determined by the Charpy Impact Test. The steelmaking process can have an important effect on these factors. Steelmaking between the time of the construction of the RMS Titanic, 1909 to 1911, and current steelmaking practice are vastly different. It has been suggested that Harland and Wolff used less...
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Published: 01 June 2019
Fig. 1 Longitudinal and transverse toughness of the 1996 RMS Titanic plate compared with that of modern steel plate. Reproduced with permission of the Iron & Steelmaker. 13 More
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Published: 01 June 2019
Fig. 5 View of a large silicate inclusion (dark gray) and smaller sulfides (light gray) of the RMS Titanic plate in the tranverse plane. (Unetched — 100×. Reproduced with permission of the Iron & Steelmaker. 13 ) More
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Published: 01 June 2019
Fig. 7 The back scattered image (BEI) of the large silicate particle in Fig. 5 . The arrows, 1, 2, and 3, point to constituents analyzed by WDS. Reproduced with permission of the Iron & Steelmaker. 13 More
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Published: 01 June 2019
Fig. 6 X-ray maps showing the elements contained in the large silicate inclusion in Fig. 5 . The maps are of the same field shown in the BEI of Fig. 7 . Reproduced with permission of the Iron & Steelmaker. 13 More
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Published: 01 June 2019
Fig. 8 SEM micrographs showing fracture surfaces of longitudinal Charpy specimens from the RMS Titanic plate tested at (a) 120 °C and (b) −32 °C. Reproduced with permission of the Iron & Steelmaker. 13 More
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Published: 01 June 2019
Fig. 10 The SEM micrograph shows sulfide inclusions A and B in the fracture surface of the transverse Charpy specimen from the RMS Titanic plate tested at −34 °C. Reproduced with permission of the Iron & Steelmaker. 13 More
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Published: 01 June 2019
Fig. 9 SEM micrograph showing fracture surfaces of transverse Charpy specimens from the RMS Titanic plate tested at (c) 148 °C and (d) −34 °C. Reproduced with permission of the Iron & Steelmaker. 13 More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.petrol.c0065825
EISBN: 978-1-62708-228-0
... the line pipe diameter. In the 1960s, steelmaking technology was found to be inadequate as pipe sizes increased, stresses increased, and service temperatures decreased. Failure analysis revealed that brittle fracture was the culprit. However, application of the standard approach of reducing the ductile...
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Published: 01 June 2019
Fig. 20 Contamination by Fertilizer: This shipment of hot rolled pipe exhibited unusual corrosion upon discharge. Inquiries revealed there were fertilizer (ammonium chloride) and steelmaking additions stored above the pipe in the hold. The porous, granular steel-making addition stuck More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c9001261
EISBN: 978-1-62708-219-8
... have been eliminated if a killed steel of quality groups 2 or 3 according to DIN 17 100 had been used. Bars Concrete construction Cracking (fracturing) Steelmaking St 34 (Other, general, or unspecified) processing-related failures In a concrete structure a ceiling was hung on flat bars...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001839
EISBN: 978-1-62708-241-9
... deformation [ 3 , 4 ]. The control of hydrogen content in steels is an important task for steelmakers because of its generally detrimental effects on processing characteristics and service performance of steel products. If the hydrogen content of the molten steel exceeds the solubility limit of hydrogen...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0048787
EISBN: 978-1-62708-235-8
... exhibited a similar structure. The normal microstructure of 1541 steel for the specified heat treatment was annealed ferrite and pearlite. The chemical composition was normal for 1541 steel. No steelmaking or tubemaking defects were found in the specimen. Conclusions Cracking of the top...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.steel.c9001201
EISBN: 978-1-62708-232-7
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003551
EISBN: 978-1-62708-180-1
... a slag (from ironmaking, steelmaking, copper smelting, etc.) or a flux (from other nonferrous metallurgy), either basic (CaO/SiO 2 > 2) or acidic (Ca/SiO 2 < 2, on a molar ratio), where S is a given refractory with a given texture. The second case is represented by a reaction of the type S + G...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001752
EISBN: 978-1-62708-241-9
... was released with the existing crankshaft in place. Although steelmaking and residual element contents of the specified Aerospace Material Specification (AMS) 6414 crankshaft steels were originally suspected as a root cause of this problem, results of the failure analyses and subsequent forging studies...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.steel.c9001513
EISBN: 978-1-62708-232-7