ASTM C1327-15(2019)
Standard Test Method for Vickers Indentation Hardness of Advanced Ceramics

Standard No.

ASTM C1327-15(2019)

Release Date

2019

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM C1327-15(2019)

Scope

1.1 This test method covers the determination of the Vickers indentation hardness of advanced ceramics. In this test, a pointed, square-based, pyramidal diamond indenter of prescribed shape is pressed into the surface of a ceramic with a predetermined force to produce a relatively small, permanent indentation. The surface projection of the two diagonals of the permanent indentation is measured using a light microscope. The average diagonal size and the applied force are used to calculate the Vickers hardness, which represents the material’s resistance to penetration by the Vickers indenter. Hardness is computed as the ratio of the force to the contact surface area. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.3 Units—When Knoop and Vickers hardness tests were developed, the force levels were specified in units of gramsforce (gf) and kilograms-force (kgf). This standard specifies the units of force and length in the International System of Units (SI); that is, force in newtons (N) and length in mm or µm. However, because of the historical precedent and continued common usage, force values in gf and kgf units are occasionally provided for information. This test method specifies that Vickers hardness be reported either in units of GPa, or a dimensionless Vickers hardness number that has implied units of kgf/mm2 . 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ASTM C1327-15(2019) Referenced Document

• ASTM E177 Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods
• ASTM E384 Standard Test Method for Microindentation Hardness of Materials
• ASTM E4 Standard Practices for Force Verification of Testing Machines
• ASTM E691 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
• IEEE/ASTM SI 10 American National Standard for Metric Practice
• ISO 6507 Metallic materials - Vickers hardness test - Part 4: Tables of hardness values
• JIS R 1610 Test methods for hardness of fine ceramics

ASTM C1327-15(2019) history

• 2019 ASTM C1327-15(2019) Standard Test Method for Vickers Indentation Hardness of Advanced Ceramics
• 2015 ASTM C1327-15 Standard Test Method for Vickers Indentation Hardness of Advanced Ceramics
• 2008 ASTM C1327-08 Standard Test Method for Vickers Indentation Hardness of Advanced Ceramics
• 2003 ASTM C1327-03 Standard Test Method for Vickers Indentation Hardness of Advanced Ceramics
• 1999 ASTM C1327-99 Standard Test Method for Vickers Indentation Hardness of Advanced Ceramics