Representative Stress-Strain Curve by Spherical Indentation on Elastic-Plastic Materials

Table 1

Mechanical properties of steel F114, brass, and Al alloy.

Materials	E (GPa)	Yield stress (MPa)	Hardening exponent n	Hardening exponent n determined by indentation	Grain size (µm)
Steel F114	210	820	0.26	0.20	15
Brass alloy	100	320	0.15	0.19	20
Al alloy	70	220	0.1	0.15	10