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Zinc compounds

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.design.c0046079
EISBN: 978-1-62708-233-4
... intergranular phase, resulting in failure by brittle fracture at low impact loads during handling and storage. Recommendation included manufacture of the pipe with aluminized instead of galvanized steel sheet for the combustion chamber. Galvanized steels Heating equipment Intermetallic Zinc compounds...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c0006900
EISBN: 978-1-62708-225-9
... on the conditions (the clamp is the cathode of a galvanic cell with zinc) and the brittle nature of the cracks, the failures were diagnosed as hydrogen-stress cracking. Laboratory experiments were conducted to substantiate the above diagnosis and to evaluate the effect of annealing and the hydrogen-stress cracking...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001439
EISBN: 978-1-62708-235-8
... compound, nickel phosphide. The use of a brazing alloy containing phosphorus was unsuitable on two counts and a quaternary alloy containing silver, copper, cadmium and zinc, such as those in group AG1 or AG2 of BS 1845 would be more suitable. However, because corrosive problems experienced in these units...
Image
Published: 01 June 2019
Fig. 1 Orchard heater of galvanized low-carbon steel that broke in a brittle manner because of an iron-zinc intermetallic compound along the grain boundaries. Dimensions given in inches. View A-A: micrograph of an etched section that shows the microstructure of the steel sheet. 400x More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.homegoods.c0049838
EISBN: 978-1-62708-222-8
... Similar compositional variations are noted at the aluminum/brass interface ( Fig. 3(a) ). Corresponding x-ray dot maps of this region for aluminum, zinc, and copper are shown in Fig. 3(b) , 3(c) , and 3(d) , respectively. A radially symmetric structure is observed from the point of contact...
Image
Published: 01 December 2019
Fig. 26 Metallographic sections after etching showing ( a ) the cracktip region for a large crack that initiated from the outside radius of the bend, and ( b ) the area around the inside radius of the bend showing a small intergranular crack. Both cracks were filled with zinc and intermetallic More
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 Background Extensive cracking was found in a batch...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001162
EISBN: 978-1-62708-220-4
... to 7.6 and is clearly less than the values of 10 to 11.3 measured on the broken tubes. In DIN 1704 the aluminium and zinc contents of 99.90 pure tin are limited to 0.002 wt% each. The Tin Research Institute in England has particular experience in the analysis of tin materials and, through the agency...
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
..., and the application of preventive measures. The fundamentals of corrosion are described in more detail in Ref 2 . However, as a brief introduction, the electrochemical nature of corrosion can be illustrated by the attack on zinc by hydrochloric acid (HCl). When zinc is placed in dilute hydrochloric acid, a vigorous...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001313
EISBN: 978-1-62708-215-0
... 0.02–0.10 Phosphorus <0.01 NR Antimony <0.05 NR Iron <0.05 0.06 max Lead <0.05 0.07 max Zinc bal. bal. (a) NR, no requirement A sample of the internal tube deposits that had been collected prior to hydrotesting was analyzed using energy-dispersive x...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0091703
EISBN: 978-1-62708-229-7
... <0.05 NR Iron <0.05 0.06 max Lead <0.05 0.07 max Zinc bal bal (a) NR, no requirement A sample of the internal tube deposits that had been collected prior to hydrotesting was analyzed using energy-dispersive spectroscopy (EDS). Crystalline compounds in the deposit were...
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
... 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 0.13 (min) Discussion Examination revealed that the stock riser had cold shuts...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c0006899
EISBN: 978-1-62708-225-9
... exceed 70 N · m (600 in. · lb). In flooded manholes, the galvanic-corrosion reaction between zinc (galvanizing) and stainless steel can generate hydrogen at the stainless steel cathode. The rate at which absorbed hydrogen on the cathode combines to form H 2 gas is affected by the catalytic properties...
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
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006805
EISBN: 978-1-62708-329-4
... with location; therefore, rates of atmospheric corrosion vary widely. For ferrous materials, because of sulfur and chloride compounds, most severe corrosion generally occurs in highly industrialized and severe marine locations, with rural exposure being much less corrosive. Liquid-Immersion Corrosion...
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
..., vanadium, lead, and zinc. A change of fuel was recommended. Gas turbines Hot gas corrosion UNS N07500 Udimet 500 Udimet 710 Rene' 77 High-temperature corrosion and oxidation Background Two 20 MW turbines suffered damage to second-stage blades prematurely. The first failure occurred...
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
... are described in more detail in Corrosion , Volume 13 of the ASM Handbook. However, as a brief introduction, the electrochemical nature of corrosion can be illustrated by the attack on zinc by hydrochloric acid. When zinc is placed in dilute hydrochloric acid, a vigorous reaction occurs; hydrogen gas...
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
...) 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 Deposits in the pockmarks...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c9001246
EISBN: 978-1-62708-224-2
... of another wire. Etched in alc. picric acid. 500 × The zinc layer has apparently reacted with the base material to form a solid solution or a compound. This takes on a dark colour when etched with alcoholic picric acid ( Fig. 8 ) and is significantly harder than the core structure. The microhardness...
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
..., leading to ultimate final fracture of the axle when a critical size was reached. Carbon or Alloy Steel and Zinc There are occasional anecdotal reports of steel components fracturing when immersed in a hot dip galvanizing bath. These failures are believed to be associated with high hardness and high...