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zinc-aluminum alloy coatings

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Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003549
EISBN: 978-1-62708-180-1
... corrosion or other electrochemical reactions into partial reactions makes them simpler to understand. Iron and aluminum, like zinc, are also rapidly corroded by hydrochloric acid. Thus, the problem of hydrochloric acid corrosion is simplified because in every case the cathodic reaction is the evolution...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006805
EISBN: 978-1-62708-329-4
... 9. Thomas A.T. , Etching Characteristics and Grain Boundary Structures of Aged Aluminum-Magnesium Alloys , J. Inst. Met. , Vol 94 , 1966 Selected References Selected References • “ Fasteners—Non-Electrolytically Applied Zinc Flake Coatings ,” ISO 16083:2014, International...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001812
EISBN: 978-1-62708-180-1
... on stress-corrosion cracking, hydrogen embrittlement, and liquid-metal embrittlement of bolts and nuts. The article explains the most commonly used protective metal coatings for ferrous metal fasteners. Zinc, cadmium, and aluminum are commonly used for such coatings. The article also illustrates...
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
... but is used in major applications including chain links, roofing panels, and automotive exhaust components. Aluminum-zinc-alloy-coated steel provides a combination of galvanic protection and low corrosion rate. Applications include metal roofing, automotive components, appliances, and corrugated pipe...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001215
EISBN: 978-1-62708-235-8
...% was established analytically. Silicon accelerates the reaction between iron and zinc, which should have been taken into account in the present case by reducing the dip time or a small addition of aluminum (0.1 to 0.2%) to the galvanizing bath to retard the extremely rapid growth of the zinc layer and the strong...
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
.... Performance of Alloy Groupings Magnesium Magnesium occupies an extremely active position in most galvanic series and is therefore highly susceptible to galvanic corrosion. Metals that combine active potentials with higher hydrogen overvoltages, such as aluminum, zinc, cadmium, and tin, are much less...
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
... to galvanic corrosion. Metals that combine active potentials with higher hydrogen overvoltages, such as aluminum, zinc, cadmium, and tin, are much less damaging, although not fully compatible with magnesium. Aluminum alloys that contain small percentages of copper (7000 and 2000 series and 380 die-casting...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003554
EISBN: 978-1-62708-180-1
..., covered by a visible layer of the embrittler metal. At room temperature, mercury or its alloys are liquid, and other metals are present as a resolidified coating. Mercury-induced failures of aluminum alloys are characterized by the generation of significant quantities of white aluminum oxide. A small...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c0048620
EISBN: 978-1-62708-225-9
... of this type of defect. Fasteners Intergranular corrosion Zinc-aluminum die casting alloy Stress-corrosion cracking The two nuts shown in Fig. 1(a) and (b) were used to secure the water-supply pipes to the threaded connections on hot-water and cold-water taps. The nut used on the cold-water...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006786
EISBN: 978-1-62708-295-2
... as a resolidified coating. Mercury-induced failures of aluminum alloys are characterized by the generation of significant quantities of white aluminum oxide. A small amount of aluminum dissolves in the mercury and oxidizes at the mercury-air interface. Solid-metal-induced embrittlement fractures of most...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001020
EISBN: 978-1-62708-214-3
.... The oleo cylinder forging was identified as an age-hardenable aluminum alloy (type 7014) of British origin. British Specification AP970, in use at the time the aircraft was manufactured, indicated weight advantages for high-strength zinc-bearing aluminum alloys used in aircraft applications, but also...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001812
EISBN: 978-1-62708-241-9
.... The application of LME as a failure analysis tool is also discussed. fasteners nozzles valves fracture mercury lead cadmium zinc structural alloys cracking cleavage radiography fracture toughness 5083-O (wrought aluminum magnesium alloy) UNS A95083 10Zn-2Pb (free-machining brass...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001385
EISBN: 978-1-62708-215-0
... with aluminum wiring. UL 486E indicates that tin is acceptable as a coating for a terminal in contact with aluminum wire. Cadmium and zinc are other candidates that might be considered from a corrosion standpoint, as these are usually satisfactory in direct contact with aluminum. The most critical consideration...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001357
EISBN: 978-1-62708-215-0
... composition of the blade material, electron probe microanalysis was first conducted . The major elements found were nickel, chromium, and cobalt; titanium, aluminum, and molybdenum were minor alloying elements. Tungsten, niobium, and tantalum were not detected. A more accurate chemical analysis revealed...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006785
EISBN: 978-1-62708-295-2
... for the development of season-cracks” ( Ref 3 ), and, in the case of cartridge brass, it was determined that this agency was an environment that contained ammonia. It was concluded that season cracking was the result of the chemical composition of the metal, specifically the amount of zinc in the brass alloy...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.auto.c9001543
EISBN: 978-1-62708-218-1
... 0.03 nil Silicon 6.10 6.50 Chromium nil — Nickel 0.50 0.32 Zinc 0.17 nil Magnesium 0.59 0.59 Copper 0.06 0.04 Iron 0.43 0.11 Titanium 0.06 — Beryllium 0.001 — While molten, some aluminum in the piston oxidized, forming aluminum oxide, Al 2 O 3...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003553
EISBN: 978-1-62708-180-1
... aluminum-zinc alloy connector exposed to a semiindustrial atmosphere caused failure by SCC in less than one month. This connector had been overtorqued during tightening to seal the assembly for a preservice hydrostatic test. In this case, too, substitution of straight-threaded connections reduced...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c0091378
EISBN: 978-1-62708-219-8
..., Millennium Metallurgy, Ltd. The piping required replacement with a more corrosion-resistant material. Copper alloys with a copper content greater than 85% are resistant to dezincification. Copper alloys such as red brass (UNS C23000), inhibited Admiralty brass (UNS C44300), and arsenical aluminum...
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
... ( Fig. 1a , b ). Parabolic or elongated shear dimples occur from torsional loading ( Fig. 1c ) or from mode II (in-plane) shear. However, metallic materials can behave in a ductile manner but not exhibit the classical dimple-rupture morphology, as shown in Fig. 1(d) for a cast aluminum alloy...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003529
EISBN: 978-1-62708-180-1
... in question. For example, the potential consequences of exceeding impurity limits for zinc and aluminum casting alloys are discussed in various articles in Properties and Selection: Nonferrous Alloys and Special-Purpose Materials, Volume 2 of ASM Handbook. If some of the consequences appear to have...