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indirect corrosion monitoring

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910427
EISBN: 978-1-62708-250-1
... direct measure of the amount of corrosion. Indirect means of monitoring corrosion by analytical methods include measuring the concentration of inhibitor, pH, oxygen, or hydrogen in a reaction fluid. Nondestructive test techniques are used extensively to monitor corrosion. Their advantage is that...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870191
EISBN: 978-1-62708-299-0
... demand (e.g., environmental issues involving certain coating processes), and lost production. Not only is there a direct and indirect financial burden, but corrosion also has a considerable societal impact. Crucial industries such as energy, aerospace, transportation, food, agriculture, electronics...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030209
EISBN: 978-1-62708-282-2
... other localized corrosion. Indirect measurements are important ongoing gages to examine both corrosion-condition trends and daily operating parameters. The crude unit is the initial processing unit in most refineries. The raw crude oil enters the unit and after being heated somewhat, it enters the...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910001
EISBN: 978-1-62708-250-1
... affects the useful service lives of our possessions, and indirect, in that producers and suppliers of goods and services incur corrosion costs, which they pass on to consumers. At home, corrosion is readily recognized on automobile body panels, charcoal grills, outdoor furniture, and metal tools...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030215
EISBN: 978-1-62708-282-2
... approximately $280 billion/year. Not always shown in surveys are the indirect costs of corrosion, which include lost product, lost sales, and lost customers. Indirect losses are generally more than double the direct costs. For example, corrosion surveys focused on the agricultural sector gave the following...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050025
EISBN: 978-1-62708-311-9
... water that directly or indirectly cools the parts that are heat treated (indirect cooling is done by heat exchangers that cool the quenchant). Water quality is extremely important in induction heat treating systems. A review of the maintenance problems of induction-heating systems shows poor water...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2000
DOI: 10.31399/asm.tb.aet.t68260055
EISBN: 978-1-62708-336-2
... higher uniform mechanical properties Reduces the formation of defects, thus reducing the scrap rate Extrusion speed increases 3 to 4 times that of the direct process and 2 to 3 that of the indirect process Improves surface finish, minimizes coarse-crystalline structure and enhances corrosion...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430409
EISBN: 978-1-62708-253-2
... shortening the tube life. The thickness of the oxide scale therefore plays a vital role in RLA. Measurement of oxide scale thickness is an indirect method of evaluating the status of creep damage. Oxide scale thickness can be determined destructively or nondestructively. A destructive method of scale...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780259
EISBN: 978-1-62708-281-5
... used, is the actual measurement of wear. Common wear measurements include weight loss, volume loss, displacement scar width or depth, and indirect measures such as the time required to wear through a coating or the load required to cause a change in reflectance ( Ref 12 ). Weight loss is...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720001
EISBN: 978-1-62708-305-8
... inspected. Eddy current is adaptable to high speed inspection, and because it is nondestructive, it can be used to inspect an entire production output if desired. The method is based on indirect measurement, and the correlation between instrument readings and the structural characteristics and...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110524
EISBN: 978-1-62708-247-1
... directly confirmed ( e.g ., by mapping effective dopant concentrations in a cross-sectioned VCSEL). We have only indirect evidence, namely a lack of measurable degradation of the active region by EBIC, CL, TEM, etc. See references 3 and 15 for more details. Note also that poor design ( e.g...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.9781627082983
EISBN: 978-1-62708-298-3
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.t60400149
EISBN: 978-1-62708-258-7
... an orthorhombic unit cell and thus, a different set of d -spacings. Thus, in a somewhat tedious and indirect way, compositional information can be obtained about the constituents in a particular microstructure. However, the TEM is not normally thought of as an analytical instrument, and other...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240177
EISBN: 978-1-62708-251-8
... thought to be due to the impurity elements phosphorus, nitrogen, and possibly sulfur. Manganese may play an indirect role by helping the impurity elements segregate to the grain boundaries. Fig. 11.27 Tempered martensite embrittlement. Source: Ref 10 This type of embrittlement causes a...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230401
EISBN: 978-1-62708-298-3
... fluxes or where heated metal is exposed to the atmosphere. Mating surfaces must be cleaned, and joints must be designed to minimize residual stresses and potential locations for stress concentration (notch effects). In joining any two metals, the danger exists of having galvanic corrosion if the part...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.tb.hpcspa.t54460121
EISBN: 978-1-62708-285-3
... evaluation of the mechanical behavior, such as tensile strength, fatigue, creep, corrosion or tribological properties of the coating. It includes some preliminary screening of tool hardness and bond adhesion strength, as well as a distinction between surface and bulk characterization techniques and their...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870063
EISBN: 978-1-62708-314-0
... develop at these locations. These indirect loads can act either alone or in combination with direct out-of-plane loads, such as fuel or air pressures. If the out-of-plane loads become large enough, interply delaminations can form and propagate. Fortunately, current design criteria are conservative enough...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060149
EISBN: 978-1-62708-261-7
... castings Visual optical Surface characteristics such as finish, scratches, cracks, or color; strain in transparent materials; corrosion Often convenient; can be automated Can be applied only to surfaces, through surface openings, or to transparent material Paper, wood, or metal for surface finish...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060197
EISBN: 978-1-62708-261-7
... stress-corrosion cracking (SCC) near welds and in regions of a component that has been cold strained during processing. When cold worked metals are heated to a sufficiently high temperature, the badly deformed cold worked grains are replaced by new strain-free grains. This process is referred to as...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720183
EISBN: 978-1-62708-305-8
... desired. The method is based on indirect measurement, and the correlation between instrument readings and the structural characteristics and serviceability of parts being inspected must be carefully and repeatedly established. Eddy current inspection is extremely versatile, which is both an advantage...