ISSN: 1945-7553
CODEN: JTEVAB
Page Count: 5

A Dynamic Microindentation Apparatus for Materials Characterization

Polvani, RS
Metallurgist, Group Leader - Corrosion and Wear Group, Metallurgy Division, and Physical Science Aide, Metallurgy Division, National Bureau of Standards, Gaithersburg, MD

Ruff, AW
Metallurgist, Group Leader - Corrosion and Wear Group, Metallurgy Division, and Physical Science Aide, Metallurgy Division, National Bureau of Standards, Gaithersburg, MD

Whitenton, EP
Metallurgist, Group Leader - Corrosion and Wear Group, Metallurgy Division, and Physical Science Aide, Metallurgy Division, National Bureau of Standards, Gaithersburg, MD

(Received 2 July 1986; accepted 10 July 1987)

Abstract

A microindentation system is described that provides a new approach to dynamic mechanical testing. The indentation is characterized in terms of continuous measurements of applied load and penetration depth. The indentation can be performed over a wide range of loading times from hours to milliseconds. The shape of the loading waveform can also be selected. The deformation energy can be measured and partitioned into elastic, plastic, and anelastic components. The apparatus is also able to perform conventional hardness testing, and may be useful for estimating conventional mechanical properties.

Keywords:
dynamic properties, hardness, impact strength, indentation testing, mechanical properties

Paper ID: JTE11046J
DOI: 10.1520/JTE11046J
ASTM International is a member of CrossRef.