Figure 7
From: Understanding and simulating the material behavior during multi-particle irradiations

Variation of the micro-hardness under various irradiation scenarios.
(a) Hardness variation during alpha irradiation (pink-left triangle) and Au + He sequential ion irradiation for different pre-existing gold damage levels (rest of the data); (b) hardness variation during Au ion irradiation (red-squares) and He + Au sequential ion irradiation for different pre-existing alpha damage levels (other data points). The right hand axes show the damage fraction.