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zinc chemicals

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.homegoods.c0090971
EISBN: 978-1-62708-222-8
...Abstract Abstract A die-cast zinc adapter used in a snowthrower failed catastrophically in a brittle overload manner. The component had a chemical composition similar to standard zinc alloy ZA-27 (UNS Z35840), although the iron content was much higher and the copper slightly lower...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c0046911
EISBN: 978-1-62708-227-3
... metal arc weld was 0.54%, whereas that of the submerged arc weld was 0.86%. After being weighed, the specimens were submerged in molten zinc for 850 h. Analysis (visual inspection, chemical analysis, 100x 2% nital-etched micrographs) supported the conclusions that the vat failed due to molten-zinc...
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
... in a humid 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...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c0091036
EISBN: 978-1-62708-227-3
...Abstract Abstract Socket head cap screws used in a naval application were failing in service due to delayed fracture. The standard ASTM A 574 screws were zinc plated and dichromate coated. Investigation (visual inspection, 1187 SEM images, chemical analysis, and tension testing) of both...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0048299
EISBN: 978-1-62708-229-7
... was revealed by EDS analysis of the debris to be iron with traces of phosphorus, manganese, sodium, calcium, copper, zinc, potassium, silicon, chromium, and molybdenum. Thus the debris was interpreted to be the scale from ID of the tube with boiler feedwater chemicals from the attemperation spray. The likely...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001100
EISBN: 978-1-62708-214-3
... zinc penetration into preexisting cracks in longitudinal cross section through severe bend area of unfractured bolt. Chemical Analysis/Identification Energy-dispersive x-ray analysis of the thumbnail region deposits on the fracture surfaces of the bolts revealed primarily iron, with a minor...
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
... of corrosion 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...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001383
EISBN: 978-1-62708-215-0
...Abstract Abstract Several case-hardened and zinc-plated carbon-manganese steel wheel studs fractured in a brittle manner after very limited service life. The fracture surfaces of both front and rear studs showed no sign of fatigue beach marks or deformation in the form of shear lips that would...
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: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001130
EISBN: 978-1-62708-214-3
... was tested using energy-dispersive X-ray spectroscopy (EDS) techniques in the SEM, where the plating was identified as zinc. The fracture surface was examined in the SEM and was found to have been severely damaged by repeated rubbing of the broken and cracked surfaces. Chemical Analysis/Identification...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001410
EISBN: 978-1-62708-220-4
... by elevated temperatures and low water velocities. It is believed that, in the initial stages, solution of the copper-zinc alloy takes place, this being followed by a secondary reaction resulting in the elector-chemical redeposition of the copper. The net result of the process is that sound metal...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001045
EISBN: 978-1-62708-214-3
... to evaluate the zinc distribution. The result is shown in Fig. 4 . Fig. 4 Scanning electron micrograph of transversal section. (a) Reflected electrons. (b) Energy-dispersive analysis for zinc mapping. Chemical Analysis/Identification Material Although an unaffected tube was not available...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0048158
EISBN: 978-1-62708-229-7
... into small pieces that had a white deposit on their rustlike surface scale. The white deposit was 100% water soluble and had a pH of 9.6 (slightly alkaline). Spectrographic examination showed the surface scale to contain a high amount of sodium, a small amount of tin, a high trace of zinc, and traces of lead...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001310
EISBN: 978-1-62708-215-0
... the failed region were analyzed chemically, and the composition was found to be 69.5% Cu, 29.1% Zn, 1.33% Sn, and 0.046% As. Corrosion Deposits The corrosion deposits on the inner surface of the tube and the fracture surface were analyzed using the energy-dispersive x-ray (EDX) technique. Copper, zinc...
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
.... Another incident of zinc LMIE occurred in a chemical plant under construction ( Ref 22 , 23 ). The piping was Type 304 and Type 316L stainless steel. After the pipe was put in place but not welded, the structural steel was painted with zinc-rich primer by both spraying and brushing. The piping...
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
... Vanadium 0.01 Zirconium &lt;0.01 Chemical composition of AA 712.0 [<xref rid="c9001753-ref1" ref-type="bibr">1</xref>] Table 2 Chemical composition of AA 712.0 [ 1 ] Element Wt.% Aluminum Remainder Zinc 5.0–6.5 Magnesium 0.50–0.65 Chromium 0.40–0.6 Iron 0.50...
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
..., including the threads, and extended into the material as deep as 0.25 mm (0.010 in.). Chemical spot tests indicated that the nut had been zinc plated. Microscopic examination of the fracture surfaces of the cold-water nut indicated that considerable intergranular corrosion had also occurred at both...
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.a0006786
EISBN: 978-1-62708-295-2
.... Another incident of zinc LMIE occurred in a chemical plant under construction ( Ref 22 , 23 ). The piping was type 304 and type 316L stainless steel. After the pipe was put in place but not welded, the structural steel was painted with zinc-rich primer by both spraying and brushing. The piping...
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
... void.Unetched. 62×. Chemical Analysis Identification A small section was removed from impeller 1 for quantitative chemical analysis. The chemical composition of the impeller material is presented in Table 2 , along with the chemical requirements for ASTM Specification B62, class C83600. The impeller...