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zinc-coated specimen

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Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003144
EISBN: 978-1-62708-199-3
... … … … … … … (a) As-cast. (b) As-cast, unnotched 6.35 mm (0.25 in.) square specimen. Source: Engineering Properties of Zinc Alloys, International Lead-Zinc Research Organization, 1989, and the Noranda Technology Centre Alloy ZA-8 is used mostly with ferrous permanent casting, but it is also used...
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003830
EISBN: 978-1-62708-183-2
... Fig. 3 , show that the ratio increases with increasing corrosion rate of steel, suggesting that the more corrosive an atmosphere is to steel, the more benefit derived from using zinc coatings. Table 2 Ranking of corrosivity in 45 locations for steel and zinc after two years' exposure Specimen...
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003818
EISBN: 978-1-62708-183-2
... behavior on soft solders, pewter, bearing alloys, tin-copper alloys, and tin-silver alloys. It reviews the influence of corrosion on immersion tin coating, tin-cadmium alloy coatings, tin-cobalt coatings, tin-copper coatings, tin-lead coatings, tin-nickel coatings, and tin-zinc coatings. The general...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001270
EISBN: 978-1-62708-170-2
... cm test specimens) Location 2-year exposure, grams lost Zinc Steel Norman Wells, N.W.T., Canada 0.07 0.73 Phoenix, AZ 0.13 2.23 Saskatoon, Sask., Canada 0.13 2.77 Esquimalt, Vancouver Island, Canada 0.21 6.50 Fort Amidor Pier, Panama, Canal Zone (C.Z.) 0.28 7.10...
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003832
EISBN: 978-1-62708-183-2
... steel substrates (50 by 75 mm, or 2 by 3 in.) to a thickness of approximately 80 μm (3 mils). After 10.5 years of exposure, it was reported that zinc-aluminum alloys and composites of approximately a 50 to 50 composition were the best performers. One set of specimens still remains at the Kure Beach...
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003808
EISBN: 978-1-62708-183-2
... type II aluminized steels were evaluated at three atmospheric-testing sites ( Ref 7 ). The weight loss data obtained from the skyward panels of each specimen were fitted to Eq 1 , which has been used for hot-dipped zinc coatings. The results of this curve fitting, together with k and n values...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001304
EISBN: 978-1-62708-170-2
..., hot-dip coating processes, electrogalvanizing, electroplating, metal cladding, organic coatings, zinc-rich coatings, porcelain enameling, thermal spraying, hardfacing, vapor-deposited coatings, surface modification, and surface hardening via heat treatment. alloy steel cadmium plating carbon...
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003839
EISBN: 978-1-62708-183-2
... protective coatings stainless steel titanium zinc metal matrix composites METAL-MATRIX COMPOSITES (MMCS) are metals that are reinforced with fibers, monofilaments (MF), or particles (P) that usually are stiff, strong, and lightweight. The fibers and particles can be metal (such as tungsten), nonmetal...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003244
EISBN: 978-1-62708-199-3
... coated surfaces to permit examination at high magnifications. Specimens are cleaned adequately between preparation steps, after preparation, and after etching. Preparation of metallographic specimens generally requires five major operations: sectioning, mounting (optional), grinding, polishing...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003247
EISBN: 978-1-62708-199-3
... alloys, refractory metals and alloys, zinc and zinc alloys, and wrought heat-resisting alloys. The preparation of specimens for metallographic technique includes operations such as sectioning, mounting, grinding, polishing, and etching of nonferrous metals and alloys. The article contains tables that...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006757
EISBN: 978-1-62708-295-2
... mounting compounds, although some relatively satisfactory proprietary materials are available. If SEM evaluation is required for nonmetallic specimens, it is necessary to coat these with a conducting layer of carbon, gold, or gold-palladium alloy by means of vacuum deposition. In the case of metallic...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006639
EISBN: 978-1-62708-213-6
... (as opposed to at a small angle) with respect to the x-ray beam. If the sample plane interacts at a low angle with the x-ray beam, surface areas are analyzed more than the inside materials. This behavior can be exploited when a film or thin coating on the specimen must be characterized. This is called...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003245
EISBN: 978-1-62708-199-3
... direction. Most techniques for preparing metallographic specimens of coated steel sheet are the same as those used for preparing specimens of uncoated steel sheet, with minor variations and precautions. Steel tube and pipe do not present any special problems in specimen extraction...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003127
EISBN: 978-1-62708-199-3
... factors affecting the selection of casting process and the general designation system for aluminum alloys. It provides useful information on mechanical test methods, selection of proper test specimens for accurate test methods, characteristics of premium engineered castings, and advantages of hot...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006768
EISBN: 978-1-62708-295-2
.... Structures exposed to the elements are often coated with zinc or painted, whereas mechanical components used in a dynamic mode are often lubricated. Protective coatings can partially or completely attenuate the incident x-ray beam and must be removed prior to residual-stress measurement. Removal of coatings...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006680
EISBN: 978-1-62708-213-6
... Abstract X-ray powder diffraction (XRPD) techniques are used to characterize samples in the form of loose powders, aggregates of finely divided material or polycrystalline specimens. This article provides a detailed account of XRPD. It begins with a discussion on XRPD instrumentation and the...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006035
EISBN: 978-1-62708-172-6
... criteria for SR containment coatings. Both test protocols recommend temperature and pressure transients during specimen exposure. The DBA test procedure uses test coupons that have been previously irradiated to receive an accumulated dose of 1 × 10 9 rads in accordance with Ref 4 . The test method is...
Book Chapter

Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001274
EISBN: 978-1-62708-170-2
.... Three principal types of phosphate coatings are in general use: zinc, iron, and manganese. A fourth type, lead phosphate, more recently introduced, is operated at ambient temperatures. All phosphate coatings are produced by the same type of chemical reaction: the acid bath, containing the...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001322
EISBN: 978-1-62708-170-2
... been used as fasteners ( Ref 17 , 18 ) Better, no coating process Initial cost significantly higher; life cycle cost may be comparable Zinc plating ( Ref 7 , 11 , 21 ) ASTM B 633 (a) Comparable/worse ( Ref 3 , 16 ) Worse ( Ref 7 , 21 ) Less/comparable ( Ref 3 , 24 ) Better, although...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001272
EISBN: 978-1-62708-170-2
... silicon-killed steels steels HOT DIP GALVANIZING is a process in which an adherent, protective coating of zinc and zinc/iron compounds is developed on the surfaces of iron and steel products by immersing them in a bath of molten zinc. The protective coating usually consists of several layers ( Fig. 1...