Author/Authors :
Mitsuda، نويسنده , , T. and Kobayashi، نويسنده , , I. and Kosugi، نويسنده , , S. and Fujita، نويسنده , , Nao. and Saitoh، نويسنده , , Y. and Hori، نويسنده , , F. and Semboshi، نويسنده , , S. and Kaneno، نويسنده , , Y. and Nishida، نويسنده , , K. and Soneda، نويسنده , , N. and Iwase، نويسنده , , A.، نويسنده ,
Abstract :
We irradiated Al–Cu–Mg alloy with 10 MeV iodine ions at room temperature and measured the surface microhardness. We analyzed the microstructure using a three-dimensional atom probe. Irradiation for 3.5 h led to an increase in hardness comparable to that obtained after 4 days of aging at 423 K. Precipitates of about 2.9 nm in diameter were distributed homogeneously over the irradiated region. The nanometer-sized precipitates produced by the irradiation caused a remarkable increase in hardness.
