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hot nickel acetate sealing

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Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006499
EISBN: 978-1-62708-207-5
... Abstract The sealing of the anodized aluminum is a critical process in achieving the durability and extended functionality of anodizing. This article discusses the different methods for sealing the anodic coatings produced by using sulfuric acid, namely, hot deionized water, hot nickel acetate...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001281
EISBN: 978-1-62708-170-2
... to achieve the optimum corrosion resistance, the amorphous aluminum oxide produced by anodizing is sealed by treating in slightly acidified hot water, boiling deionized water, a hot dichromate solution, or a nickel acetate solution. Sealing is discussed in a subsequent section of this article. Improve...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004129
EISBN: 978-1-62708-184-9
... are not emitted during the curing of these materials. Certain room-temperature vulcanizing (RTV) silicone adhesive sealants react with moisture in the air and emit acetic acid vapors. These acetic-acid-emitting materials do not meet specification MIL-A-46106 ( Ref 25 ) and should not be used for sealing...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001313
EISBN: 978-1-62708-170-2
... 2 O 3 + Al Slurry fusion of Al 2 O 3 -Al mixture Aluminide Al + additives Fused slurry Modified aluminide Al + Sn Hot dip Zinc coating Self-healing intermetallic Zn and Zn + Al, Ti, Co, Cu, Cr, Fe, Zr, Cu, Si Vacuum distillation and hot dip Oxide coating Glass-sealed...
Book Chapter

By Jude Mary Runge
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006523
EISBN: 978-1-62708-207-5
... types of oxides, namely, barrier-layer anodic oxides and porous anodic oxides. It concludes with a description of postanodizing processes, such as dyeing and sealing. aluminum alloys anodizing nucleation electrochemical parameters ANODIZING is an electrochemical process by which a uniform...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001310
EISBN: 978-1-62708-170-2
... Water (d) 180 (24) 120–180 (16–24) 15 (2) bal 21–32 (70–90) 49–60 (120–140) (h) 1 2 –2 (i) Type 316 stainless steel (j) 5 Dichromate seal Na 2 Cr 2 O 7 ·2H 2 O CaF 2 or MgF 2 Water (d) 120–180 (16–24) 2.47 (0.33) bal 99–100 (210–212) (boiling) 30 Low-carbon steel 6 Hot...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004186
EISBN: 978-1-62708-184-9
... Abstract Phosphoric acid is less corrosive than sulfuric and hydrochloric acids. This article discusses the corrosion rates of metal alloys in phosphoric acid, including aluminum, carbon steel and cast irons, stainless steels, nickel-rich G-type alloys, copper and copper alloys, nickel alloys...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003147
EISBN: 978-1-62708-199-3
..., are highly resistant to many corrosive media, especially in reducing environments, but also in oxidizing environments where they can maintain the passive nickel oxide surface film. They are used in the chemical processing and electronics industries. They are hot worked at 650 to 1230 °C (1200 to 2250 °F...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003680
EISBN: 978-1-62708-182-5
... react with hot water to convert to a crystalline hydroxide, a pseudoboehmite, as described by: (Eq 9) Al 2 O 3 + x H 2 O = Al 2 O 3 ⋅ x H 2 O where x is 1.5 to 2. The volume expansion by the formation of pseudoboehmite causes the pores to be sealed, as shown...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006122
EISBN: 978-1-62708-175-7
...), followed frequently by hot working operations. More recently, the use of lower end nickel-base superalloys has gained acceptance in other demanding applications where corrosion resistance, high strength, and good toughness at a broad temperature range provides design and performance advantages...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003221
EISBN: 978-1-62708-199-3
... Abstract This article discusses surface engineering of nonferrous metals including aluminum and aluminum alloys, copper and copper alloys, magnesium alloys, nickel and nickel alloys, titanium and titanium alloys, zirconium and hafnium, zinc alloys, and refractory metals and alloys. It describes...
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003817
EISBN: 978-1-62708-183-2
... to Aqueous Corrosion Something unique about the cobalt alloys was discovered by Elwood Haynes as he experimented with additions of chromium to iron, nickel, and cobalt in the early 1900s: They were very strong. Adding tungsten to these cobalt-chromium alloys made them even stronger and led...
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003825
EISBN: 978-1-62708-183-2
... chloride 5 to saturated Room E 5 Room to 100 (212) E 20 Room to 100 (212) E 25 Room to boiling E Barium hydroxide Saturated … E Barium hydroxide·8H 2 O Saturated Room E Barium nitrate Aqueous solution Room to hot E Barium sulfate … Room E Butyl acetate … Room...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006027
EISBN: 978-1-62708-172-6
... Abstract This article provides a brief discussion on the common types of overlayers that can be used on a metal surface to protect it from corrosion. These overlayers include phosphate, chromate, and chromate-free conversion coatings; hot dip galvanizing; cementitious linings; glass...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001065
EISBN: 978-1-62708-162-7
... resistance to fatigue and creep, and good workability C19100 (copper-nickel-phosphorus-tellurium alloy) Good hot and cold workability. Uses: forgings and screw machine parts requiring high strength, hardenability, extensive machining, corrosion resistance, copper color, good conductivity...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001246
EISBN: 978-1-62708-170-2
... require seals, which do not hold up well in hot acidic solutions. In-tank pump and filter assemblies are highly recommended because any solution that leaves the tank and dries leaves a red-brown stain that can be a major problem in maintaining good housekeeping. There should be provision for regular...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001264
EISBN: 978-1-62708-170-2
... of the most frequently used buffers include acetate, propionate, and succinate salts. Additions of alkaline materials, such as hydroxide, carbonate solutions, or ammonia, are also required periodically to neutralize the acid formed during plating. Properties of Electroless Nickel-Phosphorus Coatings...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001071
EISBN: 978-1-62708-162-7
... Abstract Addition of beryllium, up to about 2 wt″, produces dramatic effects in copper, nickel, aluminum, magnesium, gold, zinc, and other base metal alloys. This article provides information on the chemical composition, microstructure, heat treatment, fabrication characteristics, production...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003702
EISBN: 978-1-62708-182-5
.... In some cases, every component of an assembly must be tested to avoid excessive corrosion and/or premature failure. For example, an additional quality check of a vessel fabricated from AISI type 316L stainless steel (UNS S31603) for hot acetic acid service might be to test every plate, flange, nozzle...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003619
EISBN: 978-1-62708-182-5
... is in the handling of highly concentrated caustic solutions. Nickel has lower corrosion rates in hot caustic solutions than alloyed nickel due to the preferential dissolution of elements such as chromium and molybdenum. Nickel can also tolerate cold reducing acids well because of the slow discharge of hydrogen...