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instrumented indentation testing

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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
... Abstract This article provides a practical reference guide for instrumented indentation testing (IIT). It summarizes the various types of indenters used in IIT and parameters describing their geometries. The article discusses the physical principles and models used to determine hardness...
Image
Published: 01 January 2000
Fig. 2 Schematic representation of the basic components of an instrumented indentation testing system More
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 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 hardness...
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
..., which measure one contact area or penetration depth at a prescribed load (Brinell, Vickers, Knoop, Rockwell), and the recent instrumented-indentation tests, which allow for a continuous measurement of load and displacement. Magnitude of Indentation Load Hardness tests may be classified based...
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
... of the Knoop and the Vickers hardness in ceramics. It explicates how to estimate fracture toughness from Vickers indentation cracking. The article also provides information on instrumented hardness testing and the Meyer law. indentation hardness testing microindentation hardness ceramics deformation...
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
... cemented carbide compositions. Fig. 2 Relationship between Vickers hardness (HV30) and Rockwell hardness (HRA). Courtesy of Materialprüfungsam (Materials Testing Agency) Dortmund, Germany. Hardness is also determined using instrumented indentation testing, which controls either force...
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
... is a hand-sized instrument that measures the indentation hardness of rubber and plastic products. It is manually applied to the test specimen, and the reading is observed on a dial or digital indicator. Laboratory accuracy can also be obtained by mounting the durometer on one of several types of operating...
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
... of deformation. Here, grain-by-grain variability in mechanical properties can be accurately recorded by instrumented indentation testing. As a result, the combination of electron backscattered diffraction (EBSD) and nanoindentation has the potential to provide new understanding and insight into the nanoscale...
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
... are tested by using special adapters or specially designed instruments. Cylindrical parts can be tested accurately by either the Brinell or Rockwell method with the use of correction factors. In Brinell testing of cylindrical surfaces an oval indentation results, but this can be corrected to a reasonable...
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
... types of hardness testers, which can be either portable instruments or laboratory devices. Only static indentation and rebound testing are discussed in this article. These two methods account for virtually all routine hardness testing in the metalworking industry. Static indentation hardness testing...
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...
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
... is the microhardness test. This method is also preferred for measuring total depth of thin cases (≤0.25 mm, or 0.01 in.), such as is found in nitriding. The microhardness test consists of making light load indentations on a prepared sample at specified linear intervals from a point near the edge of the surface...
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
...), a diamond indenter of specific geometry is impressed into the surface of the test specimen using a known applied force (commonly called a “load” or “test load”) of 1 to 1000 gf. Historically, the term “microhardness” has been used to describe such tests. This term, taken at face value, suggests...
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
... 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...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005733
EISBN: 978-1-62708-171-9
...-strain curve of the fatigue testing) 20 As-sprayed (33 different coatings evaluated) N/A ~20–47 GPa (four-point bending) 57 8 As-sprayed N/A ~5–170 GPa (four-point bending) E values range for 17 different coatings 58 As-sprayed ~0.4–0.6 GPa top surface (instrumented indentation; 1.6...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005628
EISBN: 978-1-62708-174-0
... are destructive. In metallography, the weldment is sectioned for examination with a microscope. In mechanical testing, the weldment is loaded until the specimen fails. Mechanical testing may be done manually or by mechanical loading with an instrumented device. In a manual test, the weld features...
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
... hoc, or temporary, solution to create a single dynamic indentation, none of the methods offer the elegance and simplicity of the recovery bar momentum-trapping device developed for SHPB (see Ref 19 and the article “Recovery Hopkinson Bar Testing” in this Volume). With proper instrumentation...
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: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006026
EISBN: 978-1-62708-172-6
..., the first two methods listed in Table 2 (ASTM D3359 and D6677) are considered field test methods, because they do not require any special equipment and can be conducted rather quickly. The latter two methods (ASTM D4541 and D7234) require the use of instrumentation and generally take longer to perform...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003057
EISBN: 978-1-62708-200-6
... Abstract This article describes testing and characterization methods of ceramics for chemical analysis, phase analysis, microstructural analysis, macroscopic property characterization, strength and proof testing, thermophysical property testing, and nondestructive evaluation techniques...