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pickling

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Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.ttg2.t61120085
EISBN: 978-1-62708-269-3
...Corrosion of titanium in sulfuric acid pickle baths Table 11.2 Corrosion of titanium in sulfuric acid pickle baths Sulfuric acid concentration, % Acid addition Bath temperature Corrosion rate °C °F μm/yr mils/yr 30 0.5% (a) 38 100 100 4.0 30 1% (a) 38 100 20...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280203
EISBN: 978-1-62708-267-9
... Avoiding, Reducing, and Detecting Metallic Contamination Mechanical Removal Methods Chemical Removal Methods Background Mechanical Removal Methods Chemical Removal Methods Background Mechanical Removal of Oxides and Scales Scale Conditioning Metal Removal by Acid Pickling Salt...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.ssde.t52310193
EISBN: 978-1-62708-286-0
... with ammonia, rinse, and dry. Do not use HCl-containing products. Oxides, heat tint If severe, treat by pickling; Scotchbrite © , stainless scouring pad, or nonscratching cream or polish If abrasives must be used, they should blend with existing surface finish in size and direction. Paint Alkaline...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480207
EISBN: 978-1-62708-318-8
... microstructural refinement and the best combination of strength and ductility. After rolling, smaller rod sizes (6.4 to 9.5 mm, or 0.25 to 0.38 in.) are chemically descaled in hot caustic baths and pickled in an aqueous mixture of nitric and hydrofluoric acids (10 to 35% HNO 3 and 1.5 to 5% HF). If straight...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230493
EISBN: 978-1-62708-298-3
... and acid pickling solutions, furnace drosses, mill scale, alloy melting skulls, and collector dusts. Copper was recovered via electrowinning technology and beryllium via solvent (liquid-liquid) extraction technology. To start, copper and beryllium are dissolved from the by-product materials, followed...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230459
EISBN: 978-1-62708-298-3
... from two different investigations are listed in Tables 25.2 and 25.3 , respectively [ Miller and Boyd 1967 ]. Table 25.2 refers to intermittent immersion tests of cross-rolled, surface-ground, flash-pickled (HF-HNO 3 ) sheet of commercial purity. For continuous immersion, the average corrosion...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030172
EISBN: 978-1-62708-282-2
... , 10 Cold working of magnesium alloys, such as stretching or bending, has no appreciable effect on corrosion rate. Shot- or grit-blasted surfaces often exhibit poor corrosion performance—not from induced cold work but from embedded contaminants. Acid pickling to a depth of 0.01 to 0.05 mm...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270196
EISBN: 978-1-62708-301-0
... formed dimples on the fracture facets is a characteristic of hydrogen embrittlement in steels. Embrittled steel components generally exhibit secondary cracking. High-strength steels of the type under investigation are susceptible to hydrogen embrittlement. Hydrogen enters the steel during pickling...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.cw.t51820043
EISBN: 978-1-62708-339-3
... with a protective coating. Fig. 38 Polarization curves for type 304L in the as-welded and pickled conditions. Source: Ref 21 Fig. 35 Stainless steel nitrator cooling coil weld joint. Failure was caused by improper design of a backing ring that was not consumed during welding and left a crevice...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030096
EISBN: 978-1-62708-282-2
... may be impaired by contamination or by lack of control. Results of a study in bleach plants suggest that pickling and glass bead blasting can be more effective than stainless wire brushing and that brushing is more difficult to perform effectively in this case. Backing rings are sometimes used...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480265
EISBN: 978-1-62708-318-8
... are discussed in subsequent sections. Oxide scale on titanium alloys is brittle and hard and dulls machine tools. Therefore, it must be removed before machining. Acid pickling and molten salt bath techniques described in the welding section remove this scale. When titanium and its alloys are formed...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.ssde.t52310279
EISBN: 978-1-62708-286-0
... … (a) Finish conditions: 2D is cold rolled, annealed, and pickled; 2B is 2D with an added temper mill pass (approximately 0.5% reduction); 2BA is cold rolled, bright annealed, and temper passed. ...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.ssde.t52310161
EISBN: 978-1-62708-286-0
... and to a depth of as much as 10 µ (395 µin.). So, not only must any oxide be removed, so must the chromium-depleted layer. This requires aggressive pickling, which while done commonly, may not be practical for many stainless users. The chromium-depleted zone, however, does pickle rapidly precisely because...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080097
EISBN: 978-1-62708-304-1
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.ttg2.t61120123
EISBN: 978-1-62708-269-3
... improves resistance to dilute reducing acids as well as absorption of hydrogen under cathodic charging or gaseous hydrogen conditions. Corrosion studies in hot, dilute HCl solutions have confirmed the superior protective benefits of a rutile TiO 2 film compared with as-pickled, polished, or anodized...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.ttg2.t61120065
EISBN: 978-1-62708-269-3
... or thermomechanical processing. Materials that exhibit a light oxide scale as a result of heat treatment below about 600 °C (1110 °F) or that contain entrapped oil from machining operations should be pickled for 5 to 10 min in a solution of 30 to 40% nitric acid and 4 to 5% hydrofluoric acid in water at a temperature...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ems.t53730139
EISBN: 978-1-62708-283-9
... temperature. The hot rolled product then is pickled to remove scale. Further rolling is done cold to ensure good surface finish and optimal mechanical properties. The cold rolled steel sheet almost always is sold in an annealed state. Annealing is done in a controlled atmosphere after cold rolling...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.9781627082822
EISBN: 978-1-62708-282-2
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720365
EISBN: 978-1-62708-305-8
... of the forging is excessively scaled, it should be pickled or grit blasted, preferably pickled. The forgings should also be cleaned to remove surface contaminants, such as grease and oil Liquid penetrant inspection is slower than magnetic particle inspection Factors affecting the selection of a special...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480243
EISBN: 978-1-62708-318-8
... similar to those used for stainless steels and high-temperature alloys. Vapor degreasing in trichloroethylene (now disallowed) or perchloroethylene is possible when the treatment is followed by acid pickling to ensure the removal of any residue that could lead to stress-corrosion cracking in subsequent...