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polarization diagram

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Published: 01 December 2008
Fig. 2 Schematic polarization diagram More
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
... to to understand rates of corrosion. The discussion covers two kinetic processes, namely electrode reactions at the cathode and anode and conduction of ions in the electrolyte. The chapter also provides information on passivation and its effect on polarization diagrams. corrosion kinetics passivation...
Image
Published: 01 January 2000
Fig. 14 Evans diagram showing the comparison of potentiostatic anodic polarization of nickel alloys in H 2 SO 4 at ambient temperature. See text for details on the effects of alloying additions on corrosion behavior. More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910049
EISBN: 978-1-62708-250-1
... reactions, the mixed-potential theory, and the exchange currents. aqueous corrosion free energy electrochemical potential potential-pH diagram iron gold copper zinc aluminum titanium polarization anodic reactions cathodic reactions mixed-potential theory exchange currents ionic...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2000
DOI: 10.31399/asm.tb.fec.t65940183
EISBN: 978-1-62708-302-7
... with the 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...
Image
Published: 01 January 2000
Fig. 20 Schematic diagrams of the three forms of activation polarization control More
Image
Published: 01 November 2011
Fig. 2.3 (a) Shielded metal arc circuit diagram. (b) Polarity configurations for electric arc welding. DCSP (EN): direct current, straight polarity electrode negative); DCRP (EP): direct current, reverse polarity (electrode positive); AC: alternating current; W: welding electrode. Source: Ref More
Image
Published: 01 March 2002
Fig. 5.43 Sketch of a ray diagram for an illumination system for polarized light. The polarizer filter is placed between the second condenser lens and the illuminator, and the analyzer filter is placed above the illuminator. More
Image
Published: 01 March 2002
Fig. 5.45 Sketch of a ray diagram of differential interference contrast illumination (Nomarski) in a metallurgical microscope. Note the polarizer and analyzer for polarized light and the Wollaston prism to split the light beam. More
Image
Published: 01 January 2000
Fig. 19 Combined diagram of an anodic reaction and a cathodic reaction with activation polarization. More
Image
Published: 01 January 2000
Fig. 3 The concept of cathodic protection related to a potential-pH diagram (left) and to electrochemical polarization curves (right) More
Image
Published: 01 January 2000
Fig. 15 Concept of anodic protection related to a potential-pH diagram (left) and to an electrochemical polarization curve (right) More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910407
EISBN: 978-1-62708-250-1
... and electrochemical polarization curves as shown in Fig. 3 and described in Chapter 3 . Under freely corroding conditions, the metal in the electrolyte has a potential and pH combination in the active region as indicated by the X in the diagram. In this region, soluble corrosion products are the stable species...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2000
DOI: 10.31399/asm.tb.fec.9781627083027
EISBN: 978-1-62708-302-7
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.9781627082501
EISBN: 978-1-62708-250-1
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910497
EISBN: 978-1-62708-250-1
... by cracking under the combined action of tensile stress and corrosion in the presence of wa- ter and hydrogen sulfide. See also environmental cracking. T Tafel line, Tafel slope, Tafel diagram. When an electrode is polar- ized, it frequently will yield a current/potential relationship over a region that can...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230459
EISBN: 978-1-62708-298-3
... 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 significance of potential (electromotive force) as related...
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
... depolarization. If enough ferric ion is added, polarization is sufficient to promote the formation of a passive film on the titanium, stopping active corrosion. The potential-pH diagram in Fig. 14.2 shows why this occurs. The titanium electrochemical potential (at low pH) moves vertically out of the corrosion...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030180
EISBN: 978-1-62708-282-2
... the corrosion of metals in chemical environments that exhibit very interesting behavior when subjected to anodic polarization. This behavior can be studied with an experimental setup, which is shown in block-diagram fashion in Fig. 1 . When the potential of the working electrode relative to the reference...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910427
EISBN: 978-1-62708-250-1
... might simulate a humid tropical area, the salty air of a seaside area, a salted road in winter, or one of many others. Other accelerated tests measure a given behavior of the materials by electrochemical means, such as the pitting-breakdown potential in an anodic polarization test, and relate...