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Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2000
DOI: 10.31399/asm.tb.fec.t65940087
EISBN: 978-1-62708-302-7
...Abstract Abstract This chapter lays the groundwork for understanding electrode kinetics associated with corrosion. It presents a simple but useful theory relating kinetics to the polarization behavior of half-cell reactions. The theory is based on the observation that electrode potentials vary...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2000
DOI: 10.31399/asm.tb.fec.t65940023
EISBN: 978-1-62708-302-7
...Abstract Abstract This chapter provides a thorough introduction to the electrochemical thermodynamics that govern electrode reactions associated with corrosion. It begins with a review of the thermodynamic criteria for the stability of chemical reactions based on Gibbs free energy and explains...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2000
DOI: 10.31399/asm.tb.fec.t65940127
EISBN: 978-1-62708-302-7
.... It then presents a simple model of a galvanically coupled electrode, in which the metal is represented as an array of anode and cathode reaction surfaces. The chapter goes on to develop the related theory of mixed electrodes, showing how it can be used to predict corrosion rates based on measured potentials...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2000
DOI: 10.31399/asm.tb.fec.t65940233
EISBN: 978-1-62708-302-7
...Abstract Abstract This chapter discusses the principles and procedures of electrochemical measurements used to investigate corrosion behaviors. It begins by presenting a diagram of a basic potentiostatic circuit, which consists of a working electrode and an auxiliary or counter electrode...
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...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910049
EISBN: 978-1-62708-250-1
... free energy and electrochemical potential, the effect of ionic concentration on electrode potential, and the corrosion behavior of a metal based on its potential-pH diagram. The corrosion (potential-pH) behavior of iron, gold, copper, zinc, aluminum, and titanium are described. Understanding...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480161
EISBN: 978-1-62708-318-8
... Reduction in area, % 34–38 25 PM, powder metallurgy Spherical titanium powders Table 8.9 Spherical titanium powders Type Producer Product Cost (Ti-6Al-4V), U.S. dollars/lb Gas atomized ATI Powder (formerly Crucible) –150 to +45 μm 130 Plasma rotating electrode process...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290023
EISBN: 978-1-62708-306-5
... of an electrode. The electrode will be either a consumable wire or rod or a nonconsumable carbon or tungsten rod that carries the welding current. The electrode is manually or mechanically moved along the joint, or it remains stationary while the workpiece is moved. When a nonconsumable electrode is used, filler...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780164
EISBN: 978-1-62708-281-5
... 13 –10 15 … 28–36 700–900 (a) At 1 MHz. Source: Ref 2 Typical electrodes for dielectric strength testing Table 1 Typical electrodes for dielectric strength testing These electrodes are those most commonly specified or referenced in ASTM standards. With the exception of type 5...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.9781627082501
EISBN: 978-1-62708-250-1
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280041
EISBN: 978-1-62708-267-9
... Decarburization (AOD) Overview Electric Arc Furnace/Argon Oxygen Decarburization Operation Vacuum Induction Melting (VIM) Overview Vacuum Induction Melting Operation Consumable Remelt Overview Electrode Quality Vacuum Arc Remelting Operation Melt-Related Defects in VAR Electroslag...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290061
EISBN: 978-1-62708-306-5
... is generated by the resistance to the flow of an electrical current through the parts being joined. It is most commonly used to weld two overlapping sheets or plates that may have different thicknesses. A pair of electrodes conducts electrical current to the joint. Resistance to the current flow heats...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910427
EISBN: 978-1-62708-250-1
... and environmental changes on corrosion behavior, as well as the mechanisms of corrosion. Electrochemical Test Classification Reference Electrode Types of Electrochemical Measurements Applications of Electrochemical Tests Corrosion monitoring, which can also be thought of as in-service 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
... of all aspects of anodic protection is available in Ref 1 . History Anodic Protection Uses Comparison of Anodic and Cathodic Protection Background and Theory Equipment Required for Anodic Protection Electrodes Potential Control and Power Supply Design Concerns Applications...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.9781627082822
EISBN: 978-1-62708-282-2
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110587
EISBN: 978-1-62708-247-1
..., with Ta, Al and super CAP being polar devices [1] . Type Dielectric Electrode/Counter electrode Construction Tantalum (Ta) Tantalum pentoxide (Ta 2 O 5 ) Ta/MnO 2 Ta/Conductive Polymer Ta/liquid electrolyte Porous Ta anode Aluminum (Al) Aluminum oxide (Al 2 O 3 ) Al/Conductive...
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
... an introduction to the fundamentals of electrochemical theory as it pertains to corrosion. Thermodynamics are presented in light of electrochemical potentials as opposed to purely chemical ones. Chapter 3 introduces the formal terms needed to describe electrode reaction kinetics. Chapter 4 describes...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910407
EISBN: 978-1-62708-250-1
... electrode). Other criteria applied to the protection of steel include the following: Maintain a minimum negative shift of 300 mV (0.3 V) from the freely corroding potential Provide a minimum 100 mV shift on the polarization decay when cathodic protection is removed Measure protective cathodic...
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
... by definition has a concentration of H + ions). For each metal, there is an electrochemical reaction—over the entire surface of each electrode—that involves an equal balance of both oxidation and reduction reactions (see reaction formulas in the figure). In both cases, the corrosion of iron and zinc involves...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.ttg2.t61120025
EISBN: 978-1-62708-269-3
... Titanium ingot production. (a) Granules. Courtesy of Oregon Metallurgical Corp. (b) Compacts. Courtesy of IMI Titanium, Ltd. (c) Lowering electrode into furnace. Courtesy of IMI Titanium Ltd. (d) Final ingot. Courtesy of IMI Titanium, Ltd. (e) Welding revert. Courtesy of Howmet Turbine Components Corp...