Fatigue and Vibration Parameters Improvement of Steel DIN 41Cr4 by Ultrasonic Shock Peening Treatment. Al-Nahrain Journal for Engineering Sciences, [S. l.], v. 22, n. 3, p. 233–239, 2019. DOI: 10.29194/NJES.2203233. Disponível em: https://nahje.com/nahje/article/view/190. Acesso em: 12 apr. 2026.