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scratch testing

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Published: 30 April 2021
Fig. 4.17 Scratch testing to simulate abrasion; scratch width is the test metric; w, width; P, scratch load More
Image
Published: 01 August 2012
Fig. 16.21 Scratching tests. (a) Pin-on-disk test. (b) Slider-on-sheet test More
Image
Published: 01 October 2011
Fig. 38 Ultra Nano Hardness Tester made by CSM Instruments with capacitive displacement generation and capacitive displacement measurement. Here, the special design for scratch tests is shown. More
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300079
EISBN: 978-1-62708-323-2
... 7 1100 Topaz 8 1200 Corundum 9 2000 Diamond (hardest) 10 10,000 Fig. 4.17 Scratch testing to simulate abrasion; scratch width is the test metric; w, width; P, scratch load Scratch hardness tests exist to assess abrasion resistance of a material. These tests use...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.htpa.t53310091
EISBN: 978-1-62708-346-1
... Abstract This chapter discusses the characteristics, advantages, and disadvantages of nondestructive hardness testing methods for metals, including electromagnetic impulse testing, photothermal testing, scratch hardness testing, and ultrasonic contact impedance testing. It also discusses the use...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300121
EISBN: 978-1-62708-323-2
... Fretting – 1 million cycles Galling – one 360° pass Sand abrasion – 3,000 9-inch diameter rubber wheel revolutions Solid particle erosion – (ASTM G76) 10 minutes (20 g) Scratch tests – one pass In general, tests should be long enough to establish a steady-state condition of wear...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 September 2023
DOI: 10.31399/asm.tb.stmflw.t59390145
EISBN: 978-1-62708-459-8
... Abstract This chapter provides a practical overview of the tools and techniques used to assess the tribological aspects of metal forming processes. It describes test methods that have been developed to evaluate bulk deformation and sheet metal forming processes along with lubricant rheology...
Image
Published: 30 April 2021
Fig. 11.15 (a) Abrasion of 60 HRC 52100 steel in a ball-on-flat test (ASTM International G133). (b) The scratches are seen at 100× magnification. More
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1984
DOI: 10.31399/asm.tb.mpp.t67850334
EISBN: 978-1-62708-260-0
... also has other connotations—resistance to scratching, resistance to cutting, ability to cut softer materials, brittleness, lack of elastic damping, wear resistance, lack of malleability, magnetic retention, and so forth. Because of these different attributes, the myriad of materials tested...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780177
EISBN: 978-1-62708-281-5
.... In addition, details on ad hoc tests used for determining the acceptability of a plastic part for its application are provided, along with typical examples. optical components optical test plastics plastic parts OPTICAL TESTING of plastics includes characterization of materials and analysis...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500317
EISBN: 978-1-62708-317-1
.... The magnitude of friction and the regime of lubrication must emulate real conditions. Scratching Tests The standard pin-on-disk test ( Fig. 16.21a ) is used to determine wear in sliding material pairs, evaluate lubricants, or determine the friction coefficient. Because the material pair is in contact...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.htpa.t53310001
EISBN: 978-1-62708-346-1
... in the development of hardness testing. Figure 1 shows the connection between Mohs hardness and Vickers hardness, making clear the strong nonlinearity of the Mohs hardness scale. The 10-step scratch hardness scale established by Friedrich Mohs in 1822 is still used today in mineralogy and in the assessment...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300363
EISBN: 978-1-62708-323-2
... to be hip and knee implants, which are given the most attention in this book as well. 13.2 Dental Tribology For decades, researchers have assessed the relative abrasivity of commercially available toothpastes, and they are still testing new options. The problem is wear through the enamel of the tooth...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2022
DOI: 10.31399/asm.tb.tstap.t56040030
EISBN: 978-1-62708-428-4
... for Metallographic Preparation of Thermal Sprayed Coatings (2014) [ 1 ] that specifically covers the preparation and examination of thermal spray coatings. Preliminary Resin Infiltration of Brittle Samples before Sectioning The test specimen must be sectioned to obtain the cross-section profile of a coating...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.9781627083232
EISBN: 978-1-62708-323-2
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870045
EISBN: 978-1-62708-299-0
...), rapid scan potentiodynamic techniques, potentiostatic induction time studies, potentiostatic scratch techniques, galvanostatic polarization techniques (or anodic pitting tests), constant potential techniques (or potentiostatic point-to-point methods), and cyclic polarization (or anodic hysteresis loop...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220069
EISBN: 978-1-62708-259-4
... (and to evaluate the quality of the sample preparation for flatness, scratches, etc.) Etching of the surface with an adequate etchant Examination of the etched surface to evaluate the microstructure Recording of the microstructure (photographic) Selection of a Section to Be Examined...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110153
EISBN: 978-1-62708-247-1
...). Rework removal of the part from the motherboard or test card for preparation should be considered carefully. Once thinned, will the part survive the strain of reflow or test sockets? Will all the balls still make electrical contact in the socket after thinning due to added warpage of the package...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 1998
DOI: 10.31399/asm.tb.ts5.t65900305
EISBN: 978-1-62708-358-4
... strains, adhesion, and mechanical properties by means of mechanical property microprobes or nanoindenters are described. Coating adhesion correlates with performance and, for hard coatings, adhesion is frequently measured by scratch tests. Bull and Rickerby ( Ref 50 ) describe the application...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.smnm.t52140039
EISBN: 978-1-62708-264-8
... Abstract Metals are used in many engineering applications because of their mechanical properties, particularly strength and ductility. This chapter explains how mechanical properties are measured and how to interpret the results. It describes the most widely used tests, including tensile tests...