1-20 of 254 Search Results for

aqueous systems

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030082
EISBN: 978-1-62708-282-2
... gold created by dealloying Ag 0.75 Au 0.25 in 0.1 M HClO 4 at 650 mV saturated mercury-mercury sulfate (MSE). The sample was then heat treated at 250 °C (480 °F) for 30 min to coarsen the porosity. Dealloying in Aqueous Environments Dealloying has been observed in a number of systems...
Image
Published: 01 July 2009
Fig. 27.3 McCabe-Thiele diagram for the copper-LIXI 84 system Concentration in organic solution for Be, concentration in aqueous solution for Cu. Source: Emly 1994 More
Image
Published: 01 December 2015
Fig. 15 Relationship between the average crack propagation rate and the oxidation (that is, dissolution and oxide growth) kinetics on a straining surface for several ductile alloy/aqueous environment systems More
Image
Published: 01 January 2017
Fig. 1.17 Relationship between the average crack propagation rate and the oxidation (i.e., dissolution and oxide growth) kinetics on a straining surface for several ductile alloy/aqueous environment systems More
Image
Published: 01 July 2000
Fig. 5.2 Pourbaix diagram for the system iron-water. Encircled numbers identify phase boundaries as identified by Pourbaix. Numbers, 0 to –6, refer to the activities, 10 0 to 10 –6 , of the aqueous ions. Based on Ref 2 More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230117
EISBN: 978-1-62708-298-3
.... Chloroberyllate compounds have not been isolated from aqueous systems, but they have been isolated from anhydrous fused salt mixtures. Beryllium Fluoride Beryllium Fluoride, BeF 2 properties differ sharply from those of the chloride, bromide, and iodide. Beryllium fluoride is essentially an ionic compound...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030209
EISBN: 978-1-62708-282-2
... aqueous environment. The presence of hydrogen cyanide seems to aggravate the corrosion problem by promoting entry of atomic hydrogen into the metal. The ability of filming inhibitors to prevent this entry is limited. In some instances, the cyanide ion is removed from the system through a reaction...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230093
EISBN: 978-1-62708-298-3
... stripping, removing some of the ammonium ions from the aqueous system. By analogy with the chemistry of uranium, the beryllium is thought to be present as the Be(CO 3 ) 3 4– anion. After removal of the iron and aluminum precipitates, the filtrate is hydrolyzed at 9 °C (50 °F) to precipitate the impure...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030019
EISBN: 978-1-62708-282-2
... more noble materials. However, couples of stainless and copper alloys are often used with impunity in freshwater cooling systems. Iron and steel tend to protect stainless steel in aqueous environments when galvanically coupled. The passive behavior of stainless steels makes them easy to polarize; thus...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230071
EISBN: 978-1-62708-298-3
... filtrate containing approximately 13 g/L beryllium fluoride. The filter cake is washed thoroughly in a countercurrent washing system. Speed of operation is critical, because some free sodium fluoride is inevitably present in the roast. This will gradually react in aqueous solution with the very soluble...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040067
EISBN: 978-1-62708-300-3
... ]. Lubrication systems for the warm and hot forging of steels Table 7.5 Lubrication systems for the warm and hot forging of steels Material Process Deformation Lubricant Carbon steel Warm forging Severe MoS 2 in aqueous solution Graphite in aqueous solution Hot forging Severe...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030215
EISBN: 978-1-62708-282-2
... parameters. In many cases, crevices are either too costly or impossible to design out of a system, so careful selection of materials is the answer. Titanium is susceptible to crevice corrosion in hot seawater and other hot aqueous chloride environments. Therefore, for a flanged and gasketed piping system...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2000
DOI: 10.31399/asm.tb.fec.t65940001
EISBN: 978-1-62708-302-7
... in the chemical process industry Corrosion of automobile exhaust systems by direct reaction of the metal with high-temperature gases and by condensation of water and absorption of the oxides of sulfur and nitrogen to produce aqueous acid environments Corrosion of turbine blades in gas turbines by hot...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090221
EISBN: 978-1-62708-266-2
... The chemistry/electrochemistry of the copper-ammonia system has been studied extensively and is reasonably well understood. It has been reviewed in detail elsewhere ( Ref 7.18 , 7.19 ) and is summarized subsequently. On a copper surface, the primary reduction reaction in aerated, copper-free aqueous ammonia...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030003
EISBN: 978-1-62708-282-2
... for many years. A broad view would separate corrosion into two categories: corrosion that is not influenced by any other process and corrosion that is influenced by another process, such as the presence of stresses or erosion. A more focused view would categorize corrosion as uniform or localized, aqueous...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910049
EISBN: 978-1-62708-250-1
... (rust). The change in the energy of the system is the driving force for the corrosion process, which behaves according to the laws of thermodynamics. The thermodynamics of aqueous corrosion is the subject of the first half of this Chapter. Important concepts described include the following...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2000
DOI: 10.31399/asm.tb.fec.t65940023
EISBN: 978-1-62708-302-7
... at each electrode, accounting for different variables, mechanisms, and electrochemical effects. The chapter concludes with an in-depth review of Pourbaix diagrams, explaining what they reveal about the stability of metal-water systems and the formation of corrosion products. electrochemical cell...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030292
EISBN: 978-1-62708-282-2
..., fire resistance need not be considered for cooling-water or instrument-air systems. Although petrochemical plants may include some processes that involve nonflammable or nonhazardous streams, most equipment must be resistant to fires. For example, lack of fire resistance rules out the use...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230493
EISBN: 978-1-62708-298-3
... Fig. 27.3 McCabe-Thiele diagram for the copper-LIXI 84 system Concentration in organic solution for Be, concentration in aqueous solution for Cu. Source: Emly 1994 Typical composition of the electrolytes used after solvent extraction Table 27.4 Typical composition of the electrolytes...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230459
EISBN: 978-1-62708-298-3
... Abstract This chapter covers the corrosion behavior of beryllium in aqueous environments. It describes the chemical reactions that drive the corrosion process, the conditions required for equilibrium, and the factors that affect corrosion resistance. It discusses the stability of the native...