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Scratching damage maps for PMMA. Scratching velocity = 0.004 mm/s and nomin...
Available to PurchasePublished: 01 January 2002
Fig. 11 Scratching damage maps for PMMA. Scratching velocity = 0.004 mm/s and nominal strain is defined as 0.2 × tan θ; 2θ being the included angle of the indenter.
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Image
Scratching damage maps for polymethyl methacrylate. Scratching velocity = 0...
Available to PurchasePublished: 15 May 2022
Fig. 10 Scratching damage maps for polymethyl methacrylate. Scratching velocity = 0.004 mm/s and nominal strain is defined as 0.2 × tan θ; 2θ being the included angle of the indenter.
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Book Chapter
Scratch Testing
Available to PurchaseSeries: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003282
EISBN: 978-1-62708-176-4
... Abstract This article reviews the origins and development of scratch tests, the experimental configurations used in these tests, and the application of the tests to characterize the mechanical response of materials. It provides information on the measurement of indentation hardness. The article...
Abstract
This article reviews the origins and development of scratch tests, the experimental configurations used in these tests, and the application of the tests to characterize the mechanical response of materials. It provides information on the measurement of indentation hardness. The article describes the important parameters of the scratch test. Finally, it discusses the sliding indentation fracture process of brittle materials.
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Bands of normalized wear rate versus hardness for low-stress scratching, hi...
Available to PurchasePublished: 01 January 2002
Fig. 29 Bands of normalized wear rate versus hardness for low-stress scratching, high-stress gouging, and impact wear. Low-stress scratching shows the strongest dependence on hardness, while impact abrasion shows the least. The scatter in the impact abrasion data suggests a growing
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The mechanical action of rubbing, scraping, scratching, gouging, or erosion...
Available to PurchasePublished: 30 September 2015
Fig. 1 The mechanical action of rubbing, scraping, scratching, gouging, or erosion
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Image
Bands of normalized wear rate versus hardness for low-stress scratching, hi...
Available to PurchasePublished: 15 January 2021
Fig. 29 Bands of normalized wear rate versus hardness for low-stress scratching, high-stress gouging, and impact wear. Low-stress scratching shows the strongest dependence on hardness, while impact abrasion shows the least. The scatter in the impact abrasion data suggests a growing
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Image
Published: 01 January 2000
Fig. 8 Effect on load-bearing area, A LB , of scratching with a conical tool. (a) Pure cutting (no ridge formation). (b) A more realistic situation of ridge formation (that is, mixed microplowing and microcutting). w , groove width; b , groove height
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Published: 01 January 2000
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Published: 01 January 1996
Fig. 3 An example of gear tooth scuffing. Note radial scratch lines
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Image
Published: 31 October 2011
Fig. 3 Scratch-brushed and slightly deformed aluminum surface. Y ≈ 0, no bonding
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Weld strength as a function of surface exposure for scratch-brushed aluminu...
Available to PurchasePublished: 31 October 2011
Fig. 10 Weld strength as a function of surface exposure for scratch-brushed aluminum-aluminum. (a) p /σ 0 = 1.85. (b) p /σ 0 = 5.1. Source: Ref 7
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70-30 brass, rolled 60%, etched, scratched parallel to rolling plane normal...
Available to PurchasePublished: 01 January 2005
Fig. 16 70-30 brass, rolled 60%, etched, scratched parallel to rolling plane normal, and rerolled 10%. Old shear bands do not operate in second rolling and are rotated; new shear bands displace scratch and produce relief. Original magnification 410×. Courtesy of M. Hatherly and A.S. Malin
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Micrographs showing scratches on the surface of a roll. (a) Curved surface....
Available to PurchasePublished: 01 December 2004
Fig. 3 Micrographs showing scratches on the surface of a roll. (a) Curved surface. (b) Replica of the curved surface. Note the limited field of view on the curved surface compared with the replica. Courtesy of LECO.
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Published: 01 August 2013
Fig. 13 Hardness and scratch energy density for different iron-base alloys. W R , abrasive wear density; H+A, hardened + annealed; EBH, electron beam hardened
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in Metallography and Microstructures of Low-Carbon and Coated Steels
> Metallography and Microstructures
Published: 01 December 2004
Fig. 26 Sketch showing depth of grinding scratches below the surface of a specimen
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Potential versus time plot of scratch test illustrating a possible location...
Available to Purchase
in Methods for Determining Aqueous Corrosion Reaction Rates
> Corrosion: Fundamentals, Testing, and Protection
Published: 01 January 2003
Fig. 9 Potential versus time plot of scratch test illustrating a possible location of the critical potential, E c , as it relates to the induction time and the repassivation time. Source: Ref 86
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Scratches in a nitrocellulose coating on aluminum induced by light abrasion...
Available to PurchasePublished: 01 January 2003
Fig. 11 Scratches in a nitrocellulose coating on aluminum induced by light abrasion. Hills and valleys in the foil are induced by a diamond-imprint gravure roll that applies the nitrocellulose as a lacquer. Scanning electron microscopy. 200×
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A scratch-initiated pit formed in type 317L weld metal at 190 mV versus SCE...
Available to PurchasePublished: 01 January 2003
Fig. 8 A scratch-initiated pit formed in type 317L weld metal at 190 mV versus SCE in 0.6 N NaCl (pH 3) at 50 °C (120 °F). Pitting occurred at a grain with primary dendrites lying parallel to the surface rather than in grains with dendrites oriented at an angle to the surface.
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Single scratch test across the microstructure of tool steel X153CrVMo12-1. ...
Available to Purchase
in Carbide- and Boride-Based Thick Coatings for Abrasive Wear-Protection Applications
> Friction, Lubrication, and Wear Technology
Published: 31 December 2017
Fig. 8 Single scratch test across the microstructure of tool steel X153CrVMo12-1. (a) Load increased from left to right. (b) Scratch width in hard phases ( W h ) is less pronounced compared to scratch width in metal matrix ( W m ). (c) Brittle fracturing of larger hard phases and removal
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Single scratch test across the microstructure of tool steel NiCrBSi alloy r...
Available to Purchase
in Carbide- and Boride-Based Thick Coatings for Abrasive Wear-Protection Applications
> Friction, Lubrication, and Wear Technology
Published: 31 December 2017
Fig. 9 Single scratch test across the microstructure of tool steel NiCrBSi alloy reinforced with fused tungsten carbide (FTC). (a) Scratch track across the metal-matrix composite material. (b) Scratch track at the metal-matrix/FTC interface; microploughing and microcutting of the metal matrix
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