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Wire breakage

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c9001646
EISBN: 978-1-62708-219-8
... environment. In either case, a systematic investigation to diagnose precisely the genesis of failure is desirable. This article provides a microstructural insight into the causes of wire breakages on the outer layer of a 40 mm diam locked coil wire rope during service. The study reveals that the breakages...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001258
EISBN: 978-1-62708-235-8
...Abstract Abstract A drawing plant which processed steel wire of designation 105 Cr 2 for ball bearings had losses due to crack formation and wire breakage during drawing. To establish the reason for the breakage, seven fractures were submitted for investigation with contiguous wire segments...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001186
EISBN: 978-1-62708-234-1
... of the fracture, but they had no effect on the breakage of the wire. Away from the fracture area, the wire had a normal structure of hyperfine lamellar pearlite (sorbite) of a “patented” and cold drawn steel wire. In the vicinity of the fracture, the cementite of the pearlite was partially spheroidized, while...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001778
EISBN: 978-1-62708-241-9
... of ductility and may lead to wire breakage during cold drawing or during service after the rope has been fabricated. Any incidence of wire breakage during service causes operational interruption and loss of productivity [ 5 – 10 ]. After patenting, the wire rods are acid pickled to remove any adherent rust...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003520
EISBN: 978-1-62708-180-1
... to the plates. So, the assembly was shaken periodically. After a year of operation, a high frequency of wire breakage was observed in two of the 18 zones strung with 1008 wire. The breakage occurred at the top of each wire where it was bent around the insulator. The short free end was held fast against...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001295
EISBN: 978-1-62708-215-0
... to investigate the possible reasons for the failure of the wire at an (apparent) maximum load of only 200 kg (440 lb.) (close to the winch), when the nominal breaking load should be in excess of 300 kg (660 lb.). Reasons for breakage at much lower apparent loads (close to the target, or near the midpoint...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001819
EISBN: 978-1-62708-180-1
...), pins, and orthopedic wire are available (intramedullary refers to use of the marrow space of the bone for support). Some implants have very specific uses; others have a wide range of applications with different functions. Under the impact of a trauma, bones can fracture in any configuration...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001676
EISBN: 978-1-62708-229-7
... detectors presently in use in some nuclear reactors are Pt- or V-cored co-axial cables with MgO as insulator and Inconel 600 as the outer sheath material. An electric current is generated between the core wire and outer sheath by various (n,β), (n,γ,e) and (β,e) reactions. The signal from the emitter cable...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001811
EISBN: 978-1-62708-180-1
... of installations, one important factor must not be overlooked. The heavy pressures between the wires at the contact points in the rope, combined with the high bending stresses resulting from operation over small sheaves, have a definite effect on rope deterioration. Under such adverse conditions, wire breakage...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001768
EISBN: 978-1-62708-241-9
... at service. Stress due to the load of transmission wires, occasional adverse weather conditions like storm, snow etc. in association with micro structural inadequacies in the heel region of the splice plate must have caused the initiation and propagation of the cracks leading to its ultimate failure...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.med.c9001690
EISBN: 978-1-62708-226-6
... reactions to neurological disorders, metabolic bone diseases, and even neoplasia) 35 , 36 , 37 and promote premature failure of the implants, with immeasurable damages for the patients and losses for the public investment. 38 , 39 Additionally, some of the devices (such as the Nitinol wires...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006782
EISBN: 978-1-62708-295-2
... with gloves, due to “fish-hooked” braid wires, or wires from the braid that had broken due to manipulation and dragging on concrete during hose use. On-Site Examination The hoses used for chemical transport were suspended from a structure in a manner similar to hoses at common gas stations. When...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001814
EISBN: 978-1-62708-180-1
... revealed sharp corners at the striking face and an insufficient chill zone to support the edge under service conditions. Fig. 29 Failure caused by improper quenching. (a) AISI W1 tool steel wire-forming die that broke prematurely during service. (b) Cold etching (10% aqueous nitric acid...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003508
EISBN: 978-1-62708-180-1
...: Discontinuities, generally at intersections, caused by mechanical effects (rupture) C 110: Normal cracking C 111 (a) Normal fracture appearance, sometimes with adjacent indentation marks Breakage (cold) C 120: Cracking with oxidation C 121 (a) Fracture surface oxidized completely...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006758
EISBN: 978-1-62708-295-2
... component. Interference from other parts of the system such as insulation, paint, wiring, and enclosures all add uncertainty to the RT inspection and may reduce sensitivity. In service, components can develop dents, dings, corrosion and other features that can mask, disturb or reduce the ability...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001822
EISBN: 978-1-62708-180-1
..., wrapped with copper wire, and tested for 3 h at 1100 °C (2010 °F) without application of a load. No grain-boundary penetration of copper or intergranular cracking is evident, but there is evidence of minor bulk and grain-boundary diffusion [dark-etching lines in (b)]. (a) Root of notch. 55×. (b) Edge...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c9001723
EISBN: 978-1-62708-221-1
... manufacturers employ wire ropes to support the jibs, but the majority use steel bars fitted with appropriate spliced and pinned link joints, and in some designs the main and counterweight jibs are each supported by only one such tie. It is with failure of components of this type that the article is mainly...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003507
EISBN: 978-1-62708-180-1
.... Metalworking operations are also classified as either primary metalworking (where mill forms such as bar, plate, tube, sheet, and wire are worked from ingot or other cast forms) or secondary metalworking (where mill products are further formed into finished products by hot forging, cold forging, drawing...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003510
EISBN: 978-1-62708-180-1
... that the part has to perform. A well-designed part is the best ensurance against breakage in hardening. Design symmetry is also an important variable to minimize distortion. For example, the unsymmetrical gear design shown in the upper diagram of Fig. 26 typically may undergo distortion, as shown...