Results 31 to 40 of about 1,231 (190)

The influence of material anisotropy and spiral welding on tensile strain capacity of spiral welded pipes [PDF]

, 2015
The longitudinal strain capacity of spiral welded pipelines displays to some extents unexplained behaviour. Therefore, they are not (yet) used extensively in offshore applications and harsh conditions, demanding a strain based design. An important factor
De Backer, Michiel, De Waele, Wim, Van Minnebruggen, Koen   +2 more
core   +2 more sources

Combined numerical-experimental framework for strain based design and flaw assessment of girth welds [PDF]

, 2013
An increasing number of transmission pipelines have to be installed and operated in harsh conditions, due to the diminishing reserves of exploited fossil fuel sources.
De Waele, Wim, Denys, Rudi, Hertelé, Stijn, Van Minnebruggen, Koen, Verstraete, Matthias   +4 more
core   +2 more sources

Estudo das tensões residuais de juntas soldadas de aço API 5L X80 [PDF]

Soldagem & Inspeção, 2013
Este trabalho teve por objetivo determinar os níveis de tensões residuais decorrentes de processos de soldagem em juntas soldadas de um aço API 5L X80. Inicialmente foram executados os procedimentos de soldagem das juntas utilizando os processos de soldagem eletrodo revestido - Shielded Metal Arc Welding (SMAW) e eletrodo de tungstênio com proteção ...
Araújo, Bruno Allison, Lima, Maria do Socorro Silva Sousa, Maciel, Theophilo Moura, Silva, Antonio Almeida, Soares, Emanuel Pereira   +4 more
openaire   +3 more sources

An Artificial Neural Network-Based Equation for Predicting the Remaining Strength of Mid-to-High Strength Pipelines with a Single Corrosion Defect

Applied Sciences, 2022
Numerical methods such as finite element analysis (FEA) can accurately predict remaining strength, with strong correlation with actual burst tests. However, parametric studies with FEA are time and computationally intensive.
Michael Lo, Suria Devi Vijaya Kumar, Saravanan Karuppanan, Mark Ovinis   +3 more
doaj   +1 more source

Change of the yield stress in roll formed ERW pipes considering the Bauschinger effect [PDF]

, 2017
ERW pipes formed with the roll forming process show a yield stress distribution along the circumferential direction and their quality is strongly influenced by the magnitude and by the distributions of the yield stress.
Kang, Soochang, Kim, Dongwook, Kim, Naksoo, Lee, Joonmin, Quagliato, Luca   +4 more
core   +1 more source

EVALUATION OF CORROSION IN WELD REGION AND BASE METAL OF API 5L X80 PIPE IN MEDIUM CONTAINING HYDROGEN SULPHIDE [PDF]

Tecnologia em Metalurgia, Materiais e Mineração, 2012
The objective of this study is to compare the corrosion resistance of the base metal (MB) and weld region (RCS) of a X80 pipeline in three types of aqueous solution of acetic acid (CH3COOH) 0,5% by weight: naturally aerated, non-aerated and non-aerated ...
Bruno Nagle Armendro, Mario Fernando González Ramírez, Hélio Goldenstein, Neusa Alonso-Falleiros   +3 more
doaj   +1 more source

Analysis of the corrosion scales formed on API 5L X70 and X80 steel pipe in the presence of CO2 [PDF]

Materials Research, 2013
Longitudinal welded joints samples of X70 and X80 API grade steel pipes were exposed to a deaerated 1% NaCl solution containing CO2, at temperatures in the range of 25 ºC to 80 ºC for 48 hours. Analogous samples were exposed to the adjacent vapour phase.
A. B. Forero, Milagros. M.G. Núñez, I. S. Bott   +2 more
doaj   +1 more source

Alloy design for microstructural-tailored boron-modified ferritic stainless steel to ensure corrosion and wear resistance

Journal of Materials Research and Technology, 2023
Ferritic stainless steels armored with borides had their endurance tested in demanding both abrasive and corrosive environment. The degradation was investigated through a very aggressive plate-on-cylinder wear test in water-based drilling mud containing ...
David D.S. Silva, Alexandre R.C. Nascimento, Guilherme Y. Koga, Guilherme Zepon, Claudio S. Kiminami, Walter J. Botta, Claudemiro Bolfarini   +6 more
doaj   +1 more source

Failure Pressure Prediction of Medium to High Toughness Pipe with Circumferential Interacting Corrosion Defects Subjected to Combined Loadings Using Artificial Neural Network

Applied Sciences, 2022
Assessment of a corroded pipe is crucial to determine when it must be repaired or replaced. However, the conventional corrosion assessment codes for the failure pressure predictions of corroded pipes with circumferentially aligned interacting defects are
Suria Devi Vijaya Kumar, Michael Lo, Saravanan Karuppanan, Mark Ovinis   +3 more
doaj   +1 more source

Mechanical Properties of High‐Nb X80 Steel Weld Pipes for the Second West‐to‐East Gas Transmission Pipeline Project

Advances in Materials Science and Engineering, Volume 2017, Issue 1, 2017., 2017
The mechanical properties of steel pipe have great effects on the integrality and operation safety of gas transmission pipeline. In order to reduce the cost of the steel pipe, the high‐Nb X80 pipeline steels with the different alloying systems have been used in the Second West‐to‐East Gas Transmission Pipeline Project.
Gui-ying Qiao, Xiao-wei Chen, Zhi-en Zhang, Xiu-lin Han, Xu Wang, Bo Liao, Fu-ren Xiao, Pavel Lejcek   +7 more
wiley   +1 more source