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material degradation

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Published: 01 December 2003
Fig. 15 Scanning electron image showing isolated degradation of the grip material. 30× More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110545
EISBN: 978-1-62708-247-1
... curve shown in Figure 1(b) . This is the failure mode associated with an open circuit contact for a particular cell. If the performance of one cell starts to degrade due to poor contacts or materials degradation then this cell will start to limit the current output of the module. Figure 1(c) shows...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780153
EISBN: 978-1-62708-281-5
... to degradation in plastics include temperature variations, moisture, sunlight, oxidation, microbiologic attack, and other environmental elements. The article also describes the tests used to predict the behavior of a plastic material to outdoor exposure, discussing the use of xenon arc lamp for the weatherometer...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870401
EISBN: 978-1-62708-314-0
... to various environmental conditions may or may not cause degradation, depending on the specific material system and the specific environment. When environmental degradation does occur, it is usually, but not always, the matrix that is affected. In this chapter, a number of potential environments that can...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.omfrc.t53030237
EISBN: 978-1-62708-349-2
... interference contrast, 20× objective Abstract Polymer composite materials are subject to degradation if not appropriately protected from the environment. Composite materials having polymeric matrices are susceptible to degradation from heat, sunlight, ozone, atomic oxygen (in space), moisture...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050293
EISBN: 978-1-62708-311-9
... phenomenon; the concentrator material degrades in time due to the intensity of the magnetic flux field and the heat from radiation. This includes degradation of magnetic particles, degradation of the binders used to hold the particles together, and rusting, arcing, spalling, and other problems...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780336
EISBN: 978-1-62708-281-5
... documented. MW, molecular weight Upper limits of molecular weight, beyond which uptake and intracellular degradation do not occur, have not been established for all alkane-derived materials. Very slow degradation of paraffins, PE glycols, and linear alkyl benzene sulfonates occurs when the length...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780146
EISBN: 978-1-62708-281-5
... Abstract This article discusses the chemical susceptibility of a polymeric material. The discussion covers significant absorption and transportation of an environmental reagent by the polymer; the chemical susceptibility of additives; and thermal degradation, thermal oxidative degradation...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780359
EISBN: 978-1-62708-281-5
... into the resin or present as a discrete inclusion. The role of FTIR in the identification of contaminants is discussed in examples 3 and 8 in this article. Degradation Fourier transform infrared spectroscopy is a valuable tool in assessing a failed component material for degradation, such as oxidation...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910237
EISBN: 978-1-62708-250-1
... Abstract All materials are susceptible to corrosion or some form of environmental degradation. Although no single material is suitable for all applications, usually there are a variety of materials that will perform satisfactorily in a given environment. The intent of this chapter is to review...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780329
EISBN: 978-1-62708-281-5
... in the corrosion of metals, in that function is slowly degraded in the external environment by chemical reactions and must be treated as limiting the true usefulness of the materials. In the future, the full and successful outdoor use of engineering plastics will undoubtedly depend on a clear understanding...
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
... Abstract Corrosion can be defined as a chemical or electrochemical reaction between a material and its environment that causes the material and its properties to degrade. In most cases, it refers to the electrochemical oxidation of metals accompanied by the production of oxides or salts...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.omfrc.t53030245
EISBN: 978-1-62708-349-2
... and matrix vaporization and degradation as well as microcracking. Bright-field illumination, 25× objective Abstract Lightning damage in polymer composites, as in metal structures, is manifested by damage at both the macroscopic or visual level and within the material microstructure. In addition...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610327
EISBN: 978-1-62708-303-4
..., it covers general characteristics, viscoelastic properties, and static strength. It also discusses fatigue life, impact strength, fracture toughness, and stress-rupture behaviors as well as environmental effects such as plasticization, solvation, swelling, stress cracking, degradation, and surface...
Image
Published: 01 December 2004
Fig. 29 Typical CERT and SSRT results showing (a) material susceptibility to environmental degradation and (b) material compatibility with the environment More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430409
EISBN: 978-1-62708-253-2
... of these factors individually or collectively lead to material degradations of different magnitudes, resulting in failure of the tubes and forced outages. Remaining life assessment aims to minimize such failures and forced outages. The main objectives of RLA of boiler tubes are ( Ref 8.2 ): To prevent...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110524
EISBN: 978-1-62708-247-1
... on both ends, their performance was identical to those of the companion lasers, showing there was no degradation in the bulk of the material. Fig 9 EBIC image (top view) shows gradual degradation near the facet as darkening along the right and left ends of the stripe (after [4] ). Extensive...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110603
EISBN: 978-1-62708-247-1
... inspection followed by material evaluation and characterization. These processes are typically followed by evaluation of the packages to identify defects, degradations, and failure mechanisms that are caused by the processes (e.g., cleaning, solder dipping of leads, reballing) used in creating counterfeit...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.pnfn.t65900071
EISBN: 978-1-62708-350-8
... rods. Center rod: before treatment. Two rods at left: untreated and subjected to salt spray testing. Two rods at right: treated, then subjected to salt spray testing. Material is similar to UNS G41400 and H41400 chromium-molybdenum steels. Courtesy of Plateg USA Abstract This chapter begins...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.omfrc.t53030137
EISBN: 978-1-62708-349-2
... the structure of composite materials is essential for understanding how the part will perform in service. Assessing fiber volume variations, void content, ply orientation variability, and foreign object inclusions helps in preventing degradation of composite performance. This chapter describes the optical...