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indenter selection

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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 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...
Image
Published: 01 January 2000
Fig. 5 Plots of load versus square of the mean indentation diagonal for selected metals and alloys More
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
..., size and shape of the workpiece, specimen surface flatness and surface condition, and indent location. The article focuses on the selection for specific types of materials, such as steels, cast irons, nonferrous alloys, and plastics, and industrial applications, of hardness tests. hardness test...
Series: ASM Handbook
Volume: 24A
Publisher: ASM International
Published: 30 June 2023
DOI: 10.31399/asm.hb.v24A.a0006952
EISBN: 978-1-62708-439-0
... and their respective corrosion responses in various service environments. It also provides several case studies on location-dependent properties, microstructural evolution, and indentation strain-rate sensitivity of various additively manufactured alloys. corrosion response high-strain-rate behavior metal...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003272
EISBN: 978-1-62708-176-4
... hardness testers. (a) Semiautomated tester with a Filar micrometer for measurements, automated readout of the test results with its equivalent hardness in another selected scale. (b) Fully automated tester interfaced to an image analyzer to control indenting, measurement, and data manipulation Fig...
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
... hardness testing to select loads so that the indentation diameter lies between 0.25 D and 0.5D where D is the indenter diameter. Thus, an average of the two diameters, 0.375 D , was chosen for the indentation diameter as shown in Fig. 6 , which also shows the origin of the included angle 136...
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
... is applied in microsecond duration may lead to a more accurate assessment of material behavior and process parameter selection. Recently, there has been an increased interest in dynamic indentation technique because of its ability to predict dynamic plastic properties of materials at high strain rates...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005795
EISBN: 978-1-62708-165-8
... through the case to a point well within the core area, as shown in Fig. 6 and 7 . For case-depth measurements, the selection of a Knoop indenter is recommended so that the highest density of indentations may be obtained. Fig. 6 Comparison of Knoop indentation using the same load in both...
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: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003275
EISBN: 978-1-62708-176-4
... Abstract Miscellaneous hardness tests encompass a number 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...
Image
Published: 01 January 2000
Fig. 4 Semiautomated and fully automated microindentation hardness testers. (a) Semiautomated tester with a Filar micrometer for measurements, automated readout of the test results with its equivalent hardness in another selected scale. (b) Fully automated tester interfaced to an image More
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
... with the plastic response of a material. However, experimental results indicate otherwise. Table 1 is a comparison of indentation hardness ( H ) and scratch hardness, H S , for a selection of materials. It is seen that the ratio H S / H is not only different from a value of one, but also varies widely...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003241
EISBN: 978-1-62708-199-3
... of the control knob allows a selected force (in kilograms), indicated on the gage, to be applied. This force is held for a pre-established length of time and then released. The specimen is removed and the indentation measured. The entire cycle, including indenting and measurement, requires approximately one...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006583
EISBN: 978-1-62708-290-7
... Abstract Tungsten, molybdenum, and cemented carbide parts can be produced using several additive manufacturing technologies. This article classifies the most relevant technologies into two groups based on the raw materials used: powder-bed methods, such as selective laser melting, electron beam...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006056
EISBN: 978-1-62708-175-7
... Particle size and distribution are important considerations for raw materials and graded powder blends. Table 1 provides a summary of underlying principles and size ranges for ASTM standard methods of particle sizing ( Ref 1 ). Selection of the method depends on the type of powder and whether...
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
... surface finish, flat surface, and parallel sides Sample must fit within the machine and be balanced on the pedestal Vickers hardness Hardness Test is slow Careful surface preparation of the specimen is necessary Measurement of indentation is operator dependent and results in variation...
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
... on the environmentally assisted crack growth of polymers is also included. The article details the evaluation of nanoscale environmental effects and indentation-induced cohesive cracking. It also provides information on scanning probe microscopy. hydrogen embrittlement stress-corrosion cracking corrosion fatigue...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003256
EISBN: 978-1-62708-176-4
... properties of selected plastics are listed in Tables 1 , 2 , and 3 . It should also be understood that glass transition temperatures are not distinct transition temperatures like phase transformations, because the transition occurs over a range of temperatures. In a thermoplastic polymer...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003279
EISBN: 978-1-62708-176-4
.... Unlike other mechanical properties, such as the elastic constants or shear strength, properties of adhesion, friction, and wear depend strongly upon the surface conditions of the solid and not exclusively upon its bulk structure. The selection of appropriate test methods to meet engineering requirements...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005730
EISBN: 978-1-62708-171-9
... as an indenter, with an included angle between opposite faces of 136┬░ (the test also is sometimes referred to as the diamond pyramid hardness, or DPH, test). The number generated from the test, the Vickers hardness number (HV) or DPH number, is defined as the load divided by the surface area of the indentation...