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indentation testing

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Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003302
EISBN: 978-1-62708-176-4
... and ceramics. This method, based on split Hopkinson pressure bar testing, can determine rate-dependent characteristics of metals and ceramics at moderate strain rates. For example, dynamic indentation testing reveals a significant effect of loading rates on the hardness and the induced plastic zone size...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003273
EISBN: 978-1-62708-176-4
... indentation testing system Fig. 9 Room-temperature indentation creep data for indium obtained by loading the indenter at a constant rate (10 mN/s) to a peak load and holding for an extended period of time. Source: Ref 25 Fig. 10 Indenter displacement versus time during a period...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003274
EISBN: 978-1-62708-176-4
...-dimensional form of the indentation. Fig. 9 A typical load-displacement trace for instrumented hardness testing Fig. 3 Effect of indentation size on the measured hardness of ceramics Fig. 10 Vickers hardness versus load (indentation size effect) curve for ceramics, showing...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0009007
EISBN: 978-1-62708-185-6
... of principal stresses and strains Fig. 11 Plane-strain compression test Fig. 12 Partial-width indention test. L ≅ h ; b = h /2; w a = 2 L ; l = 4 L Fig. 13 Secondary-tension test showing the geometries of holes and slots. L ≅ h ; w a ≅ 2 = h ; b = h...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003258
EISBN: 978-1-62708-176-4
... Fig. 6 Schematic of the partial-width-indentation test. L ≌ h; b = h /2; w a = 2 L; 1 = 4 L. Source: Ref 1 Fig. 3 The effect of axial compressive stress on the shear strain at fracture in torsion for various steels. Source: Ref 3 Fig. 9 Comparison of strain paths...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004017
EISBN: 978-1-62708-185-6
... diameter; ID, inside diameter Fig. 45 Extrapolation method to correct for end effects in compressive loading. Source: Ref 55 Fig. 49 Effect of degree of die enclosure on state of stress in forging. Source: Ref 32 Fig. 55 Partial-width indentation test. L ≈ h ; b = h /2...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003275
EISBN: 978-1-62708-176-4
... of test methods that have been developed for specific applications. These include dynamic, or "rebound," hardness tests using a Leeb tester or a Scleroscope; static indentation tests on rubber or plastic products using the durometer or IRHD testers; scratch hardness tests; and ultrasonic microindentation...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001297
EISBN: 978-1-62708-170-2
..., are discussed. For films which are adherent to their substrates, indentation testing is used to evaluate hardness, creep, and strength. adherent films beam-bending methods biaxial testing creep freestanding films hardness indentation testing mechanical properties strength substrates thin films...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005508
EISBN: 978-1-62708-197-9
...Abstract Abstract This article describes the most commonly used test methods for determining flow stress in metal-forming processes. The methods include tension, ring, uniform compression, plane-strain compression, torsion, split-Hopkinson bar, and indentation tests. The article discusses...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003270
EISBN: 978-1-62708-176-4
... metals with fully annealed metals. The article discusses the plastic deformation of ideal plastic metals under an indenter, by a flat punch, and by spherical indenters. The classification of the hardness tests using various criteria, including type of measurement, magnitude of indentation load...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003271
EISBN: 978-1-62708-176-4
...Abstract Abstract This article describes the principal methods for macroindentation hardness testing by the Brinell, Vickers, and Rockwell methods. For each method, the test types and indenters, scale limitations, testing machines, calibration, indenter selection and geometry, load selection...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003277
EISBN: 978-1-62708-176-4
...Abstract Abstract The gage repeatability and reproducibility (GRR) study is a procedure for determining the repeatability of a test instrument and the reproducibility of a specific gage in operation. This article reviews the general method of GRR studies and its application for indentation...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003282
EISBN: 978-1-62708-176-4
... view of the indent. (b) Atomic force microscopy line profile along the section line marked in (a). Section details: surface distance, 29.7 μm; horizontal distance, 28.8 μm; vertical distance, 46.8 nm; angle, 0.093° Fig. 6 Parameters encountered in scratch testing. F T , tangential friction...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0009224
EISBN: 978-1-62708-176-4
...Abstract Abstract A newly developed theory on plasticity makes it possible to include elastic effects, which play a major role when using blunt hardness indenters. This article reviews the new theory and explains several phenomena associated with practical hardness testing. In the indentation...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003276
EISBN: 978-1-62708-176-4
...Comparison of indentation hardness tests Table 1 Comparison of indentation hardness tests The minimum material thickness for a test is usually taken to be 10 times the indentation depth. Test Indenter(s) Indent Load(s) Method of measurement Surface preparation Tests per hour...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003309
EISBN: 978-1-62708-176-4
... fracture mechanics metals environmentally assisted crack growth polymers nanoscale environmental effects indentation-induced cohesive cracking scanning probe microscopy Precracked Specimen Testing qxidizing Gas acidified chloride ceramics liquid metals environmentally assisted cracking...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002416
EISBN: 978-1-62708-193-1
... – 424 10. Minguet P.J. and Gunther C.K. , “Test Methods for Textile Composites,” CR 4609, National Aeronautics and Space Administration , July 1994 11. Poe C.C. Jr. , Simulated Impact Damage in a Thick Graphite/Epoxy Laminate Using Spherical Indenters , Proc...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003293
EISBN: 978-1-62708-176-4
... , 9 , 10 , 11 ), and even in combined torsion and uniaxial stress ( Ref 12 ). Torsional testing is described in detail in the article “Torsional Kolsky Bar Testing.” The Hopkinson technique can also be used for high strain rate indentation tests, as discussed in the article “Dynamic Indentation...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006761
EISBN: 978-1-62708-295-2
... of indentation is operator dependent and results in variation Microindentation hardness testing Vickers hardness Hardness Result does not always correlate to bulk material hardness Values vary with applied loads Requires a polished surface Knoop hardness Hardness Result does not always correlate...
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001032
EISBN: 978-1-62708-161-0
... Test Sidepressing Test Flow Stress in Compression Tension Test Torsion Test Compression Test Ductility Testing Bend Test Plane-Strain Compression Test Partial-Width Indentation Test Secondary-Tension Test Ring Compression Test Hot Twist Testing Wedge-Forging Test...