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metal bonds

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0047745
EISBN: 978-1-62708-235-8
... braze that the filler metal had not covered all mating surfaces. Lack of a metallurgical bond between the brazing alloy and stainless steel and instead mechanical bonding of the filler metal to an oxide layer on the stainless steel surface was revealed by examination of the broken joint at the cup...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0047753
EISBN: 978-1-62708-235-8
... showing large voids (arrow) and joint separation (lower left) resulting from poor bonding between housing and braze metal. 50× The failure of the pressure-probe housing was attributed to fatigue cracking that originated at multiple origins at the interface between the housing and the braze metal...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c0047917
EISBN: 978-1-62708-227-3
... material, bonded to the outer ring, between the two. The inner ring was found to have failed in four places. The two metallic rings were allowed to come in contact with each other by the disappearance of the plastic material. It was revealed by examination of the fracture surfaces of the inner ring...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0046371
EISBN: 978-1-62708-234-1
...Abstract Abstract When a roller-bearing assembly was removed from an aircraft for inspection after a short time in service, several areas of apparent galling were noticed around the inside surface of the inner cone of the bearing. These areas were roughly circular spots of built-up metal...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001391
EISBN: 978-1-62708-215-0
... and partial delamination. Partial delamination occurred at the metallization interface, confined to the portion of the wraparound termination away from the top land termination. This was primarily due to the absence of a ceramic-to-metal bond in this portion of the termination. Termination fracture...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001054
EISBN: 978-1-62708-214-3
... to premature failure by stress-corrosion cracking under sustained loading if the atmosphere was saturated with water vapor. Dissimilar metals, bonding Pressure welding Stainless steels, bonding Welded joints, corrosion Silver Stress-corrosion cracking Background Testing Procedure and Results...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003532
EISBN: 978-1-62708-180-1
... abrasive for nonferrous metals and minerals. Wheels have different bond strengths and are recommended based on the suitability of their bond strength and abrasive type for the material to be sectioned. In general, as the hardness of a material increases, abrasives become dull more quickly, and the binder...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006765
EISBN: 978-1-62708-295-2
... and rubber. Alumina is the preferred abrasive for ferrous alloys, and SiC is the preferred abrasive for nonferrous metals and minerals. Wheels have different bond strengths and are recommended based on the suitability of their bond strength and abrasive type for the material to be sectioned. In general...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003543
EISBN: 978-1-62708-180-1
..., individual atoms exhibit differences in the number of electrons in the various electron shells. This results in different types of bonding and bond strength. Bonding may be covalent (strong), ionic (strong), metallic (intermediate), or van der Waals (weak). Metallic materials are metallically bonded...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006778
EISBN: 978-1-62708-295-2
...), ionic (strong), metallic (intermediate), or van der Waals (weak). Metallic materials are metallically bonded and ceramic materials are predominantly ionically bonded. Carbon atoms in the backbone of a polymer chain are covalently bonded, and the pendant side groups are covalently bonded to the backbone...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001829
EISBN: 978-1-62708-241-9
... of the inner root area. The chemical compositions of bond-coat layer, base, and filler metal are listed in Table 1 . Fig. 1 (a) First-stage vane and (b) inner root area of 700ES Chemical compositions of bond-coat layer, base, and filler metal Table 1 Chemical compositions of bond-coat layer...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001133
EISBN: 978-1-62708-214-3
.... , Failures of Metallic Orthopedic Implants , Failure Analysis and Prevention , Vol 11 , ASM Handbook , ASM International , 1986 , p 670 – 694 10.31399/asm.hb.v11.a0001819 A femoral knee implant was returned to the casting vendor for analysis after exhibiting poor bond strength between...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001069
EISBN: 978-1-62708-214-3
... 13.1 18.3 2.5 0.6 1.8 0.9 … bal Intermediate bond layer … 54 6.0 1.0 … 1.7 0.4 … 36 Carbon steel base metal 0.17 … … … … 0.9 0.3 … bal Corrosion deposits. as oxides … 20 43 … … … 1 28 7 (a) SEM, scanning electronmicroscopy; EDS, energy-dispersive...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001840
EISBN: 978-1-62708-241-9
... at a fixed detonation velocity, and therefore raise the possibility of jet formation. A pure metallic contact surface issuing from the jet formation phenomenon besides great impact pressure bringing the gap between the free surface of plates to atomic distances results in metallic bonding of flyer and parent...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006824
EISBN: 978-1-62708-329-4
... to air; therefore, the underlying metal oxidizes with time. The growth of this thermally grown oxide (TGO) generates stresses at the ceramic/metal interface, which can lead to detachment of the ceramic over time. Minimization of the TGO growth rate is achieved by applying an oxidation-resistant bond...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001691
EISBN: 978-1-62708-234-1
... in Figure 2 . Fig. 1 The APS storage ring vacuum chamber. Three small round cooling holes are seen here. Fig. 2 Transition assemblies made from 3003 aluminum roll-bonded to stainless steel (top). SEM and x-ray EDS was used to survey the corrosion regions ( Figs. 3 and 4 ). Fig...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001546
EISBN: 978-1-62708-217-4
... that the numerous hairline cracks in the Alclad layer adjacent to the main fracture were fatigue cracks. In another case, bonded samples of 2024-T3 sheet were fatigue tested at various stress levels. Failures could be separated into three groups: those that failed in the adhesive bond, those that failed in the base...
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
... those chemical and physical properties that make them applicable for structures, or as components of systems, that are exposed to environments above 538 °C (1000 °F).” Nowadays, refractories are made of not only oxides and nonoxide compounds (carbides, nitrides, and carbons), but also of metallic...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006828
EISBN: 978-1-62708-329-4
... flux, improper application of excess flux, nonuniform heat control resulting in localized underheating or overheating, and loose joint fit-up. Brazing operations in which the braze joint surfaces are not completely, or adequately, covered with filler metal and bonded can result from any one or more...
Book Chapter

Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003541
EISBN: 978-1-62708-180-1
... strong covalent bonds that form chains, which are also frequently linked by strong primary bonds (i.e., ionic, covalent, and metallic) and/or weaker secondary bonds (i.e., hydrogen and van der Waals). Polymers may also exhibit limited crystallinity, which occurs when the polymer chains arrange...