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surface interactions

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Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 September 2023
DOI: 10.31399/asm.tb.stmflw.t59390019
EISBN: 978-1-62708-459-8
... Abstract This chapter examines the surface interactions that occur during metal forming operations at both the macroscopic and microscopic scale. It describes the measurement and characterization of surface profiles based on form error, waviness, and roughness. It explains how workpiece...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220085
EISBN: 978-1-62708-259-4
... Abstract This chapter discusses the use of electron microscopy in metallographic analysis. It explains how electrons interact with metals and how these interactions can be harnessed to produce two- and three-dimensional images of metal surfaces and generate crystallographic and compositional...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 September 2023
DOI: 10.31399/asm.tb.stmflw.t59390039
EISBN: 978-1-62708-459-8
..., the characteristics of contact surfaces, and loading forces imposed by the process. It describes the nature of metal transfer between tool and workpiece surfaces and the role of lubricants, coatings, and textures. It also discusses the use of wear maps, the effects of adhesion, and material-lubricant interactions...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 September 2023
DOI: 10.31399/asm.tb.stmflw.t59390456
EISBN: 978-1-62708-459-8
... Abstract In contrast to most plastic deformation processes, the shape of a machined component is not uniquely defined by the tooling. Instead, it is affected by complex interactions between tool geometry, material properties, and frictional stresses and is further complicated by tool wear...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090001
EISBN: 978-1-62708-266-2
... of a surface film. It describes bulk and surface reactions that contribute to SCC, including dissolution, mass transport, absorption, diffusion, and embrittlement, and their role in crack nucleation and growth. It also discusses crack tip chemistry, grain-boundary interactions, and the effect of stress...
Image
Published: 01 November 2019
Figure 19 Illustration of milling bit to sample interaction for A: 5-axis mode on convex surface. B: 3-axis mode on convex surface. C: 5-axis mode on concave surface. D: 3-axis mode on concave surface. More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030045
EISBN: 978-1-62708-282-2
... heterogeneous, leading to sharp chemical gradients both along the metal surface and perpendicular to it. The purpose of this article is to consider in general the characteristics of organisms that allow them to interact with corrosion processes, the mechanisms by which organisms can influence the occurrence...
Image
Published: 01 August 2005
Fig. 2.32 TEM image of fracture surface from a cemented carbide (94WC-6Co) after four-point bending test. The trapezoidal WC grain at center (transgranular fracture) exhibits Wallner lines (indicated by arrow), which result from the interaction between the advancing crack front More
Image
Published: 01 December 2003
Fig. 1 Schematic of different interactions during sliding of abrasive particles against the surface of material. Source: Ref 12 More
Image
Published: 01 April 2013
Fig. 11 Electron energy distribution from silver sample. Differentiated signal most clearly reveals the peak corresponding to Auger electrons that were produced very near the surface and exited the sample prior to interacting with other atoms. Source: Ref 5 More
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430325
EISBN: 978-1-62708-253-2
... tube fatigue, including mechanical or vibrational fatigue, corrosion fatigue, thermal fatigue, and creep-fatigue interaction. It discusses the causes, characteristics, and impacts of each type and provides several case studies. boiler tubes corrosion fatigue creep-fatigue interaction fatigue...
Image
Published: 01 November 2019
Figure 73 Illustration showing the photoelectric effect current contrast method for an nfet transistor. When white light interacts with the doped silicon (red waves), excess electron/hole pairs are created that bias the silicon across the junctions. The nfet Source/Drain active silicon has More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.t60400149
EISBN: 978-1-62708-258-7
... the microscope to provide information about the chemical composition of the constituents in the sample. The primary electrons also interact to generate other electrons, called secondary electrons, which can provide topographical information about the surface features of the sample. Other interactions include...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030003
EISBN: 978-1-62708-282-2
... there are concerns about materials for use in molten salt and liquid metal environments. Gaseous corrosion is usually associated with high-temperature environments. Atmospheric corrosion is not considered a part of gaseous corrosion because the corrosion reaction occurs in a thin aqueous layer on the surface...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 September 2023
DOI: 10.31399/asm.tb.stmflw.t59390064
EISBN: 978-1-62708-459-8
... ring or cross-linked molecules. The most effective boundary lubricants combine a chemical reaction with the surface and a cohesive interaction between the lubricant species, a circumstance that is achieved by paraffinic acids, explaining their popularity [ 22 ]. Fatty acids can react with metals...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.fdmht.t52060043
EISBN: 978-1-62708-343-0
... can be reversed, while some remains after each half-cycle. In addition, CC loading provides greater time for oxidation effects to interact with existing exposed surfaces and any new grain-boundary surfaces that are formed on each cycle. In addition, if there is sufficiently high thermal exposure...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2023
DOI: 10.31399/asm.tb.ciktmse.t56080001
EISBN: 978-1-62708-460-4
.... One of the practical solutions to corrosion issues is the use of corrosion-inhibiting substances, that is, corrosion inhibitors. A corrosion inhibitor refers to an additive or substance that dramatically decreases the corrosion kinetics of metal materials through surface interactions at a dilute...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300001
EISBN: 978-1-62708-323-2
....” There are various definitions for the word tribology , but the one offered by the Encyclopedia of Tribology Terms ( Ref 1 ) is: (n) tribology is the art and science of interacting surfaces and related technologies. This word was needed because of the economic significance of the degradation of engineering...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300013
EISBN: 978-1-62708-323-2
... of sliding friction depends on the nature of the sliding contact: Clean metal-on-metal (friction depends on interaction of surface features, adhesion at real areas of contact, atomic bonding at atomically clean contacts, etc.). Metal-on-metal with fluid separation (friction depends on the amount...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.tt2.t51060115
EISBN: 978-1-62708-355-3
... is reduced. Most structural metals and alloys, when strained to failure in a tensile test, fracture by ductile processes. The fracture surface is formed by the coalescence or combination of microvoids. These microvoids generally nucleate during plastic deformation processes, and coalescence begins after...