ASTM-E384 2007

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E384-07a Standard Test Method for Microindentation Hardness of Materials

Published By	Publication Date	Number of Pages
ASTM	2007	33

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Description

ASTM E384-07a

Historical Standard: Standard Test Method for Microindentation Hardness of Materials

ASTM E384

Scope

1.1 This test method covers determination of the microindentation hardness of materials, the verification of microindentation hardness testing machines, and the calibration of standardized test blocks.

1.2 This test method covers microindentation tests made with Knoop and Vickers indenters under test forces in the range from 9.8 × 10^-3 to 9.8 N ( 1 to 1000 gf ).

1.3 This test method includes an analysis of the possible sources of errors that can occur during microindentation testing and how these factors affect the accuracy, repeatability, and reproducibility of test results.

Note 1—While Committee E04 is primarily concerned with metals, the test procedures described are applicable to other materials.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Keywords

hardness; indentation; Knoop; microindentation; Vickers; Abb´e-Nelson illumination; Calibration–metals/alloys analysis instrumentation; Hardness (indentation)–microhardness; Indenter geometry; Knoop hardness (HK) number; Kohler illumination; Metallic hardness; Metals and metallic materials; Repeatability/reproducibility (RR); Structural metals/alloys; Verification; Vickers hardness

ICS Code

ICS Number Code 19.060 (Mechanical testing)

DOI: 10.1520/E0384-07A

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Terminology
2	FIG. 1 FIG. 2
3	Summary of Test Method Significance and Use Apparatus
4	Test Specimen Procedure
5	Report Precision and Bias
6	FIG. 3
7	TABLE 1 TABLE 2
8	Conversion to Other Hardness Scales or Tensile Strength Values Keywords A1. VERIFICATION OF KNOOP AND VICKERS HARDNESS TESTING MACHINES AND INDENTERS A1.1 Scope A1.2 General Requirements TABLE A1.1
9	A1.3 Direct Verification A1.4 Indirect Verification TABLE A1.2 TABLE A1.3
10	FIG. A1.1 TABLE A1.4
11	A1.5 Weekly Verification A1.6 Verification Report TABLE A1.5
12	A1.7 Example Calculations of Repeatability and Error A2. CALIBRATION OF STANDARDIZED HARDNESS TEST BLOCKS FOR MICROINDENTATION HARDNESS TEST MACHINES A2.1 Scope A2.2 Test Block Manufacture A2.3 Standardizing Tester Requirements
13	A2.4 Test Block Standardization Procedure A2.5 Repeatability of the Standardized Test Block A2.6 Marking A2.7 Certification of Standardized Test Block TABLE A2.1
14	X1. ADJUSTMENT OF KÃ–HLER ILLUMINATION SYSTEMS X1.1 X2. CORRELATION OF MICROINDENTATION HARDNESS TEST DATA BETWEEN LABORATORIES X2.1 Scope X2.2 Correlation Procedure X2.3 Referee
15	X3. RESULTS OF INTERLABORATORY TEST OF THE MEASUREMENT OF MICROINDENTATIONS X3.1 Introduction X3.2 Scope X3.3 Procedure X3.4 Results
16	TABLE X3.1 TABLE X3.2 TABLE X3.3 TABLE X3.4 FIG. X3.1
17	FIG. X3.2 FIG. X3.3
18	X4. RESULTS OF AN INTERLABORATORY TEST COMPARING MICROINDENTATION HARDNESS TESTING USING MANUAL AND AUTOMATED MEASURING SYSTEMS X4.1 Introduction X4.2 Scope X4.3 Procedure X4.4 Repeatability X4.5 Reproducibility X4.6 Comparisons FIG. X3.4
19	TABLE X4.1 TABLE X4.2 TABLE X4.3
20	TABLE X4.4 FIG. X4.1 FIG. X4.2
21	FIG. X4.3 FIG. X4.4
22	FIG. X4.5 FIG. X4.6
23	X5. RECOMMENDATIONS FOR LIGHT FORCE MICROINDENTATION HARDNESS TESTING X5.1 Introduction FIG. X4.7 FIG. X4.8
24	X5.2 Scope X5.3 Environment X5.4 Specimens X5.5 Instruments
25	X5.6 Measurement of Indentations X5.7 Scanning Electron Microscope X5.8 Video and Automatic Measuring Systems X6. HK AND HV VALUES FOR A 1 gf TEST LOAD X6.1 TABLE X6.1
29	TABLE X6.2
33	REFERENCES