Results 61 to 70 of about 1,231 (190)

A COMPARISON OF DIFFERENT NUMERICAL APPROACHES FOR FSW WELDS OF API 5L - X80 STEEL

open access: yesRevista Mundi Engenharia, Tecnologia e Gestão (ISSN: 2525-4782), 2020
This contribution offers a study for two numerical approaches of FSW joints for the API 5L-X80 steel. The first one, a pure thermal model, takes into consideration the preponderant frictional force of the tool being in contact with the workpiece. The second model is a computational fluid dynamic approach, which involves determining experimental values ...
Guilherme Gadelha de Sousa Figueiredo   +2 more
openaire   +2 more sources

Guide for recommended practices to perform crack tip opening displacement tests in high strength low alloy steels [PDF]

open access: yes, 2016
Fracture mechanics approach is important for all mechanical and civil projects that might involve cracks in metallic materials, and especially for those using welding as a structural joining process.
Lima, Vinicius   +4 more
core   +4 more sources

Numerical Evaluation of Temperature Field and Residual Stresses in an API 5L X80 Steel Welded Joint Using the Finite Element Method

open access: yesMetals, 2016
Metallic materials undergo many metallurgical changes when subjected to welding thermal cycles, and these changes have a considerable influence on the thermo-mechanical properties of welded structures.
Jailson A. Da Nóbrega   +5 more
doaj   +1 more source

Zavarljivost čelika visoke čvrstoće [PDF]

open access: yes, 2019
Ovaj rad bavi se problematikom zavarljivosti čelika visoke čvrstoće. U teoretskom dijelu rada objašnjen je pojam zavarljivosti. Opisana je proizvodnja i specifičnosti čelika API 5L X80.
Filip Vusić
core   +1 more source

Strain-Based Design Methodology of Large Diameter Grade X80 Linepipe [PDF]

open access: yes, 2014
Continuous growth in energy demand is driving oil and natural gas production to areas that are often located far from major markets where the terrain is prone to earthquakes, landslides, and other types of ground motion. Transmission pipelines that cross
Lower, Mark D.
core   +2 more sources

A New Approach to Simulate HSLA Steel Multipass Welding through Distributed Point Heat Sources Model

open access: yesMetals, 2018
Mechanical properties of welded joints depend on the way heat flows through the welding passes. In multipass welding the reheating of the heat affected zone (HAZ) can form local brittle zones that need to be delimited for evaluation.
Dario Magno Batista Ferreira   +4 more
doaj   +1 more source

Estudo do comportamento do aço API 5L X80 quando submetido à soldagem por processo automatizado [PDF]

open access: yesSoldagem & Inspeção, 2012
No Brasil, a soldagem de tubulações tem sido praticamente de forma manual, entretanto, a utilização de processos de soldagem automatizados têm crescido muito nos últimos anos, contribuindo para o maior controle dos parâmetros de soldagem, e conseqüentemente, a possibilidade de obtenção de juntas soldadas com melhores propriedades mecânicas.
Albuquerque, Siderley Fernandes   +4 more
openaire   +3 more sources

Influence of Centerline Segregation Region on the Hydrogen Embrittlement Susceptibility of API 5L X80 Pipeline Steels

open access: yesMetals
The influence of the centerline segregation region (CSR) on the hydrogen embrittlement (HE) of two different API 5L X80 pipeline steel plates was investigated.
Mathews Lima dos Santos   +6 more
doaj   +1 more source

Primjena planova pokusa u cilju procjene sastavnica mjerne nesigurnosti [PDF]

open access: yes, 2016
Tema diplomskog rada je primjena planova pokusa u cilju procjene sastavnica mjerne nesigurnosti. U diplomskom radu detaljno je opisan rad CT uređaja koji se koristi u području dimenzionalnog mjeriteljstva, rekonstrukcija prikaza, utjecajni parametri, te
Gašparec, Luka
core  

Study of phase transformations In API 5L X80 Steel in order to increase its fracture toughness

open access: yesMaterials Research, 2013
Phase transformations in API 5L X80 steel were studied in different thermomechanical sequences with a view to increasing the fracture toughness of this steel.
Igor Rafael Vilarouco Pedrosa   +3 more
doaj  

Home - About - Disclaimer - Privacy