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Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006835
EISBN: 978-1-62708-329-4
.... discontinuities hot forming ingot casting metalworking defects nonferrous forging steel forging wrought metal products Introduction to Failures Related to Hot Forming Processes Wrought forms are produced by a wide variety of metalworking operations that can be roughly divided into bulk-working...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001601
EISBN: 978-1-62708-235-8
... Abstract Flow forming technology has emerged as a promising, economical metal forming technology due to its ability to provide high strength, high precision, thin walled tubes with excellent surface finish. This paper presents experimental observations of defects developed during flow forming...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0090932
EISBN: 978-1-62708-235-8
... Abstract Cold-drawn type 303 stainless steel wire sections, 6.4 mm (0.25 in.) in diameter, failed during a forming operation. All of the wires failed at a gradual 90 deg bend. Investigation (visual inspection and 5.3x/71x/1187x SEM views) supported the conclusion that the wires cracked due...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.auto.c0089258
EISBN: 978-1-62708-218-1
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006801
EISBN: 978-1-62708-329-4
... Abstract Sheet forming failures divert resources from normal business activities and have significant bottom-line impact. This article focuses on the formation, causes, and limitations of four primary categories of sheet forming failures, namely necks, fractures/splits/cracks, wrinkles/loose...
Book Chapter

Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003548
EISBN: 978-1-62708-180-1
... Abstract This article addresses the forms of corrosion that contribute directly to the failure of metal parts or that render them susceptible to failure by some other mechanism. It describes the mechanisms of corrosive attack for specific forms of corrosion such as galvanic corrosion, uniform...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006783
EISBN: 978-1-62708-295-2
... Abstract Corrosion is the electrochemical reaction of a material and its environment. This article addresses those forms of corrosion that contribute directly to the failure of metal parts or that render them susceptible to failure by some other mechanism. Various forms of corrosion covered...
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Published: 01 June 2019
Fig. 1 Schematic diagram of reverse flow forming process More
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Published: 01 June 2019
Fig. 2 Four-axis CNC flow forming machine with a 3-roller More
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Published: 01 June 2019
Fig. 9 Cracked tube after second pass in flow forming More
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Published: 01 June 2019
Fig. 1 Forming cracks on stainless steel wire. (a) The fracture, which occurred during bending shows many parallel fissures. 5.3×. (b) A typical fissure on the wire surface. Scanning electron micrograph. 71×. (c) The interior of the fissures and the fracture surface exhibit dimple rupture More
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Published: 01 December 2019
Fig. 7 Cu/Cu-alloys used during JCOE forming More
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Published: 01 December 2019
Fig. 13 Typical creep voids forming on transverse grain boundaries from solid, equiaxed turbine blade casting. Void coalescence will eventually lead to a stress-rupture crack More
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Published: 01 December 2019
Fig. 14 Creep voids forming near the trailing edge of SX turbine blade casting at ∼ 5% airfoil span. Casting contains no grain boundaries. Etchant: 33% glycerol, 33% nitric acid, 33% acetic acid, and 1–3% hydrofluoric acid More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.machtools.c0047840
EISBN: 978-1-62708-223-5
.... The fracture progressed into the threaded section and formed a pyramid-shape fragment after it was initiated at approximately 45 deg through the hole in the square end. An irregular zone of untempered martensite with cracks radiating from the surface of the hole (result of melting around hole) was revealed...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001836
EISBN: 978-1-62708-241-9
... formed in different machines Table 2 Parameter details of 16 bends formed in different machines Bending parameter Sl No. Temp (°C) Speed (mm/min) Water flow (m 3 /h) Machine No. 1 966–978 10 12.82–12.95 1 2 970–988 11 13.50–13.95 1 3 968–973 11 13.28–13.52 1 4...
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Published: 01 June 2019
Fig. 3 Form of thread showing radius at only one side of root.(×50) More
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Published: 01 June 2019
Fig. 1 Sections received for examination showing different forms of rupture. More
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Published: 01 June 2019
Fig. 6 Form (shape) factors of isolated delta ferrite in the cladding of the Midland control specimens. More
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Published: 01 June 2019
Fig. 3 Form of cracking from internal surface (× 50). More