PSI - Issue 33

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Procedia Structural Integrity 33 (2021) 658–664

IGF26 - 26th International Conference on Fracture and Structural Integrity Ultrasonic Fatigue Endurance of the Maraging 300 Steel IGF26 - 26th International Conference on Fracture and Structural Integrity Ultrasonic Fatigue Endurance of the Maraging 300 Steel

© 2021 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the IGF ExCo © 2021 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review Statement: Peer-review under responsibility of the scientific committee of the IGF ExCo Keywords: Maraging steel 300; Ultrasonic farigue; Fracture surfaces; Crack initiation; Abstract Ultrasonic fatigue tests were carried out at room te perature and under zero mean stress (R=-1), on the aeronautical steel maraging 300. Hourglass shape te ting specimen dimensions were obtained by modal numerical simulation, using the m cha ical proprieties of this teel: density, Young odulus and Poisson ratio. Ultrasonic fatigue results were achieved under three loading tress: 585, 486 and 389 MPa, corresponding to high, middle and low applied stress, respectively. Fr ture surfaces were analyzed with scanning electronic microscope, in order t investigate th origin an caus s of crack initiation and propagation under this testing conditions. Finally, general conclusions were addressed concerning the ultrasonic fatigue endurance of this aeronautical steel, together with the crack initiation and propagation behavior. © 2021 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND licens (https:// reativecommons.org/licenses/by-nc-nd/4.0) P er-review Statement: Peer-review under r sponsibility of the scientif c committee of the IGF ExCo Keywords: Maraging steel 300; Ultrasonic farigue; Fracture surfaces; Crack initiation; Abstract Ultrasonic fatigue tests were carried out at room temperature and under zero mean stress (R=-1), on the aeronautical steel maraging 300. Hourglass shape testing specimen dimensions were obtained by modal numerical simulation, using the mechanical proprieties of this steel: density, Young Modulus and Poisson ratio. Ultrasonic fatigue results were achieved under three loading stress: 585, 486 and 389 MPa, corresponding to high, middle and low applied stress, respectively. Fracture surfaces were analyzed with scanning electronic microscope, in order to investigate the origin and causes of crack initiation and propagation under this testing conditions. Finally, general conclusions were addressed concerning the ultrasonic fatigue endurance of this aeronautical steel, together with the crack initiation and propagation behavior. Julio A. Ruiz Vilchez a , Gonzalo M. Domínguez Almaraz b, *, Mario A. Sánchez Miranda c a jaruiz@umich.mx, b dalmaraz@umich.mx, c ele_sami@hotmail.com Julio A. Ruiz Vilchez a , Gonzalo M. Domínguez Almaraz b, *, Mario A. Sánchez Miranda c a jaruiz@umich.mx, b dalmaraz@umich.mx, c ele_sami@hotmail.com a,b,c Facultad de Ingeniería Mecánica, Universidad Michoacana de San Nicolás de Hidalgo(UMSNH), Santiago Tapia No. 403, Col. Centro, Morelia, Michoacán, 58000, México a,b,c Facultad de Ingeniería Mecánica, Universidad ichoacana de San Nicolás de Hidalgo(UMSNH), Santiago Tapia No. 403, Col. Centro, Morelia, Michoacán, 58000, México

* Corresponding author. Tel.:+52 443 3223500; fax:+52 443 3223500 ext. 3107. E-mail address: dalmaraz@umich.mx * Correspon ing author. Tel.:+52 443 3223500; fax:+52 443 3223500 ext. 3107. E-mail address: dalmaraz@umich.mx

2452-3216 © 2021 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review Statement: Peer-review under responsibility of the scientific committee of the IGF ExCo 2452-3216 © 2021 The Authors. Published by ELSEVIER B.V. This is an open acc ss article und r the CC BY-NC-ND licens (https:// reativecommons.org/licenses/by-nc-nd/4.0) Peer-review Statement: Peer-review under responsibility of the scientific committee of the IGF ExCo

2452-3216 © 2021 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the IGF ExCo 10.1016/j.prostr.2021.10.073