Zobrazeno 1 - 10
of 60
pro vyhledávání: '"Roberto Lacalle"'
Publikováno v:
Applied Sciences, Vol 13, Iss 4, p 2598 (2023)
This paper clarifies the causes of a corrosion process observed in austenitic stainless-steel pipes, grade 316L, used for conducting freshwater in a port area. During the pressure test of the installation, before it was put into service, about five m
Externí odkaz:
https://doaj.org/article/39b857bc8585459795a5b0260e592d55
Publikováno v:
Metals, Vol 10, Iss 6, p 723 (2020)
There are multiple references to sample cleaning methods prior to hydrogen content determination, or hydrogen spectroscopy analysis, but there is still no unified criteria; different authors use their own “know-how” to perform this task. The aim
Externí odkaz:
https://doaj.org/article/8b0806b84e1c49dd98021c7c1cee1a9b
Autor:
Erik López-Vargas, Luis Alejandro Alcaraz Caracheo, José Alberto Álvarez, Roberto Lacalle, Ramón Rodríguez-Castro, Miguel Martínez-Madrid, Álvaro Sánchez-Rodríguez
Publikováno v:
Nova Scientia, Vol 10, Iss 20 (2018)
La evaluación de la vida residual de componentes estructurales en servicio requiere conocer el valor de la tenacidad a la fractura, pero los métodos convencionales para medir la tenacidad demandan remover grandes cantidades de material del componen
Externí odkaz:
https://doaj.org/article/ddf64926bbe2470e90ce86145454117a
Autor:
Jose Alberto Álvarez, Roberto Lacalle, Borja Arroyo, Sergio Cicero, Federico Gutiérrez-Solana
Publikováno v:
Metals, Vol 6, Iss 7, p 163 (2016)
This paper analyses the failure of three bolts used in the structural connections of a number of steel towers located in northern Europe. The analysis comprises optical and scanning electron microscopy, microstructural and hardness analysis, mechanic
Externí odkaz:
https://doaj.org/article/fed3acb7de824321a007ae4aa1c8cad8
Autor:
Laura Andrea Calvo, Borja Arroyo Martinez, José Alberto Álvarez Laso, Federico Gutiérrez-Solana, Sergio Cicero González, Roberto Lacalle Calderón
Publikováno v:
Volume 4B: Materials and Fabrication.
The Small Punch Test is a recently standardized technique successfully employed for estimating the tensile, creep and fracture properties of metallic materials, and is considered as one of the most suitable options for evaluating mechanical propertie
Autor:
B. Arroyo, Federico Gutiérrez-Solana, José Alberto Álvarez, Roberto Lacalle, Sergio Cicero, L. Andrea, A. Cayón
Publikováno v:
Web of Science
Medium and high-strength steels working in harsh environments are susceptible of suffering of mechanical properties loss due to hydrogen presence. In order to avoid catastrophic failures, the estimation of the fracture toughness in environment is nec
Autor:
Javier Sarmiento, Xabier Mediavilla, Juan Diego Fuentes, Raul Guanche Garcia, Sergio Cicero, Luis San Segundo, David Andres Alvarez, Carlos Polimon, Roberto Lacalle
Publikováno v:
DYNA. 94:620-625
La mayoria de las operaciones de acceso a las plataformas eolicas se realizan utilizando barcos de servicio que se aproximan a los sistemas de boat landing, que basicamente son estructuras secundarias unidas a la estructura principal del aerogenerado
Publikováno v:
The Journal of Strain Analysis for Engineering Design. 54:390-400
In this article, different techniques to test notched small punch test samples in fracture conditions in aggressive environments are studied, based on the comparison of the micromechanisms at different rates. Pre-embrittled samples subsequently teste
Publikováno v:
Journal of Nuclear Materials. 518:409-418
The Master Curve approach allows the full characterisation of the ductile to brittle transition region (DBTR) of ferritic steels to be performed with a reduced number of tests. In this paper, the approach has been combined with the application of the
Autor:
José Alberto Álvarez, A. Fernández, P. González, Sergio Cicero, B. Arroyo, L. Andrea, Roberto Lacalle
Publikováno v:
Volume 6: Materials and Fabrication.
The Small punch test, which consists on punching a small plane specimen up to failure, is a technique to be taken into account for the estimation of mechanical properties when there is shortage of material. In recent works it has been applied to the