1-20 of 30 Search Results for

Pourbaix diagrams

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
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030005
EISBN: 978-1-62708-282-2
... of Pourbaix diagrams. The phenomenon of precipitation runoff on the corroded metal surface is then discussed. The chapter also describes the role of microbes or bacteria in the corrosion of metals. It concludes by providing information on the trends in atmospheric corrosion research and methods...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060369
EISBN: 978-1-62708-261-7
... selective leaching. It discusses the use of corrosion inhibitors, cathodic and anodic protection, pH control, and Pourbaix diagrams. corrosion mitigation crevice corrosion pitting corrosion stray current corrosion Pourbaix diagrams THE WORD CORRODE is derived from the Latin corrodere , which...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.ssde.t52310011
EISBN: 978-1-62708-286-0
... theory as it pertains to corrosion resistance of stainless steels. The discussion provides an overview of electrochemical reactions, Faraday's law, the Nernst equation, galvanic versus electrochemical cells, corrosion tendency, and Pourbaix diagrams. corrosion stainless steel corrosion prevention...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2000
DOI: 10.31399/asm.tb.fec.t65940023
EISBN: 978-1-62708-302-7
... 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 July 2000
DOI: 10.31399/asm.tb.fec.t65940183
EISBN: 978-1-62708-302-7
... iron-water Pourbaix diagram. It then explains how anodic polarization is extremely sensitive to the environment and, as a result, a reasonably complete curve for a given metal-environment system usually can only be inferred. It goes on to describe how such curves are constructed, demonstrating the...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.ssde.t52310019
EISBN: 978-1-62708-286-0
... in Fig. 2 . Assume that the pH is such that a passive layer does not form (see the discussion of Pourbaix diagrams in Chapter 2 ). The cathode and anode reactions, respectively, are: (Eq 19) 2 H + + 2 e − → H 2 (Eq 20) Fe ( s ) → F e 2 + + 2 e...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910049
EISBN: 978-1-62708-250-1
... determined experimentally by conducting corrosion tests. Potential-pH diagrams are calculated primarily for pure metals in pure water at 25 °C (75 °F). Advances and extensions of the diagrams have been made to include other ionic species and temperatures. These diagrams are also called Pourbaix diagrams...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910331
EISBN: 978-1-62708-250-1
... interrelated factors, all of which must work in conjunction in order for a battery to perform suitably. Fig. 1 Processes, materials, and engineering disciplines involved in manufacturing a battery A cutaway diagram of an alkaline cell battery is shown in Fig. 2 , identifying the materials used...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2007
DOI: 10.31399/asm.tb.pmsspmp.t52000101
EISBN: 978-1-62708-312-6
... solid solution rather than as an oxide. Chromium, above its minimum content of approximately 12%, improves the passivation properties of a steel because it widens the range of potential and pH over which it forms a stable protective oxide layer. So-called Pourbaix diagrams, derived from...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030172
EISBN: 978-1-62708-282-2
... magnesium is exposed to the air at room temperature, a gray oxide forms on its surface. Moisture converts this oxide to magnesium hydroxide, which is stable in the basic range of pH values, but is not in the neutral or acid ranges as shown in the Pourbaix diagram ( Fig. 1 ). The immunity region of the...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910407
EISBN: 978-1-62708-250-1
..., ammonium nitrate with and without ammonium hydroxide, and other fertilizer solutions. It has also been applied to titanium, aluminum, nickel, and their alloys. The concept of cathodic protection is related to potential-pH (Pourbaix) diagrams and electrochemical polarization curves as shown in Fig. 3...
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
... Pourbaix diagram, and pitting or crevice attack in near-neutral aqueous solutions (particularly in the presence of halides). Most acidic solutions (except those containing soluble fluorides) can be inhibited by the presence of even small amounts of oxidizing agents and heavy-metal ions. Thus, titanium...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090067
EISBN: 978-1-62708-266-2
... mechanism may be in operation. In the Pourbaix diagram for iron ( Ref 3.5 )—that is, the potential-pH equilibrium diagram for the iron-water system, the range of potentials and pH within which hydrogen can be released by reduction of water is defined. Below the sloping line marked “H” in Fig. 3.3 (the...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060315
EISBN: 978-1-62708-261-7
... the metal potential is shifted to more positive values, forming copper oxide (CuO)—as seen on the Pourbaix (potential-pH) diagrams of copper in water ( Fig. 13.2 ). Fig. 13.2 Pourbaix diagram (potential-pH) for copper in water at 25 °C (77 °F) Pure copper resists attack quite well under...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480331
EISBN: 978-1-62708-318-8
... way to do this is to look at a potential-pH (also called Pourbaix) diagram of a metal ( Ref 14.1 , 14.2 ). These diagrams show the thermodynamically stable phase regions as a function of electrochemical potential and solution pH. Used as a starting point, these diagrams can be very helpful in...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090241
EISBN: 978-1-62708-266-2
... balance, relatively thick (20 to 200 nm, or 200 to 2000 Å) natural films are formed ( Ref 8.2 ). The conditions for thermodynamic stability of the oxide film are expressed by the Pourbaix (potential versus pH) diagram shown in Fig. 8.1 . As shown by this diagram, aluminum is passive (is protected by...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230459
EISBN: 978-1-62708-298-3
... ketone and Freon In 3 min Methyl ethyl ketone and distilled water Starts immediately The pH-potential range over how beryllium behaves in water at 25 °C is illustrated in Fig. 25.1 [ Pourbaix 1966 ]. Potential-versus-pH diagrams of this type are known as Pourbaix diagrams. The...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030126
EISBN: 978-1-62708-282-2
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870025
EISBN: 978-1-62708-299-0
..., or 200 to 2000 A) natural films are formed ( Ref 2 ). The conditions for thermodynamic stability of the oxide film are expressed by the Pourbaix (potential versus pH) diagram shown in Fig. 2 . As shown by this diagram, aluminum is passive (is protected by its oxide film) in the pH range of about...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2000
DOI: 10.31399/asm.tb.fec.t65940271
EISBN: 978-1-62708-302-7
... 10.1016/0010-938X(73)90031-0 7. Pourbaix M. , Atlas of Electrochemical Equilibria , Pergamon Press , 1974 , p 307 – 321 8. Smialowska Z. , Influence of Sulfide Inclusions on the Pitting Corrosion of Steels , Corrosion , Vol 28 , 1972 , p 388 – 396 9. Eklund G.S...