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cast aluminum-zinc alloy

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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
.... 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 tap ( Fig. 1a ) fractured...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001123
EISBN: 978-1-62708-214-3
... environment in a coastal area. It was recommended that proper chemical analysis of the zinc-aluminum alloy be carried out as a quality control procedure. Die castings Marine environments Zamak 3 Intergranular corrosion Intergranular fracture Selected References • Forms...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001753
EISBN: 978-1-62708-241-9
... particles, and dimpled cellular regions in the matrix. The secondary fracture surface demonstrates similar features of intergranular fracture. aircraft landing gear intergranular fracture overaging cast aluminum-zinc alloy shrinkage porosity fractographic analysis optical emission spectroscopy...
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
...-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 the performance...
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
... iron, gray cast iron, malleable irons, ductile iron, low-alloy steel castings, austenitic steels, corrosion-resistant castings, and cast aluminum alloys are the materials discussed. The article describes the general types of discontinuities or imperfections for traditional casting with sand molds...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001199
EISBN: 978-1-62708-235-8
... on the design of the gate and runner system and operating conditions. High flow efficiencies, with adequate feeding to all sections of the die, and short cavity fill times are desirable. Casting defects Die castings Surface defects Zinc-aluminum alloy Casting-related failures...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001083
EISBN: 978-1-62708-214-3
... requirements (ASTM B62) Copper 83.92 84.0–86.0 Lead 4.79 4.0×6.0 Tin 5.00 4.0×6.0 Zinc 5.37 4.0×6.0 Nickel 0.34 1.0 (max) Arsenic <0.005 NR (a) Antimony 0.090 0.25 (max) Iron <0.05 0.30 (max) Phophorus 0.22 0.05 (max) (a) NR, no requirement...
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
... alloy is 357 aluminum, which contains 6.5 to 7.5 Si and 0.45 to 0.60 Mg. Tensile strength is 45,000 to 52,000 psi in solution treated, aged stock. Forged pistons are also used, but the gain in mechanical properties comes at a higher cost. To determine the effect of severe service on cast aluminum...
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
... environments. The relative positions of metals and alloys in the galvanic series can vary significantly from one environment to another. The position of alloys in the galvanic series for seawater is not necessarily valid in nonsaline solutions. For example, aluminum is anodic to zinc in an aqueous 1 M sodium...
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
... significantly from one environment to another. The position of alloys in the galvanic series for seawater is not necessarily valid in nonsaline solutions. For example, aluminum is anodic to zinc in an aqueous 1 M sodium chromate (Na 2 CrO 4 ) solution and cathodic to iron in an aqueous 1 M sodium sulfate...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c9001530
EISBN: 978-1-62708-225-9
... second phase in the microstructure, provides good antifrictional properties. These alloys may also contain zinc (for good casting properties), nickel (to achieve fine grain and uniform dispersion of lead) etc. 9 Commercial leaded tin bronzes contain a variable percentage of different constituents...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001284
EISBN: 978-1-62708-215-0
... Failed Alloy AM60A riser 1 riser 2 requirements (ASTM B94) Aluminum 5.80 6.35 5.5–6.5 Silicon <0.05 <0.05 0.50 Copper <0.03 <0.03 0.35 Zinc <0.05 <0.05 0.22 Iron <0.05 <0.05 ... Nickel <0.01 <0.01 0.03 Manganese 0.30 0.30...
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
... 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 of hydrogen gas according...
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
... the analyst is not very familiar with the alloy system 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...
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
... and resulted in failure of the valve body by SCC in a service environment of hydraulic fluid that contained small amounts of moisture and chloride. Similarly, stresses on tapered threads on a cast aluminum-zinc alloy connector exposed to a semiindustrial atmosphere caused failure by SCC in less than one month...
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
... but not exhibit the classical dimple-rupture morphology, as shown in Fig. 1(d) for a cast aluminum alloy. The cast aluminum alloy fracture surface should show dimples in the aluminum matrix (original dendrites), but they can be difficult to see because fracture-surface morphology is impacted by cleavage...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006760
EISBN: 978-1-62708-295-2
... corners, which can act as stress raisers and lead to fatigue damage. Shrinkage porosity can be closed by hot isostatic pressing ( Fig. 31 ). Fig. 31 (a) Aluminum casting exhibiting shrinkage porosity. (b) Scanning electron microscope image of shrinkage porosity Alloy segregation...
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
... 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. The cast aluminum alloy fracture surface should show dimples...
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
... of information about the chemical 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...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001809
EISBN: 978-1-62708-180-1
... corrosion. A corrosive environment may selectively attack an alloy, removing only one element. In some environments, lead and zinc may be more readily dissolved than copper or aluminum, for example, leaving a surface such as that shown in Fig. 7 . The remaining copper matrix is unsupported and can readily...