Microstructure evolution during direct impact loading of commercial purity α-titanium with harmonic structure design - Direct impact loading of pure harmonic α-TiG. Dirras, M. Ota, D. Tingaud, K. Ameyama and T. SekiguchiMatériaux & Techniques, 103 3 (2015) 311DOI: https://doi.org/10.1051/mattech/2015031