Results 11 to 20 of about 281 (140)

Stress corrosion of copper in sulfide solutions: Variations in pH‐buffer, strain rate, and temperature

open access: yesMaterials and Corrosion, Volume 74, Issue 11-12, Page 1632-1644, November‐December 2023., 2023
Interpretation of observed surface features after tests as an initial intergranular corrosion that progresses to wedge‐shaped cavities by the applied strain (a). Further corrosion causes the cavities to widen into pits and to form solid Cu2S which restricts mass transport to the deepest sites in cavity (b).
Claes Taxén   +2 more
wiley   +1 more source

Data‐analysis method for hydrogen embrittlement tuning‐fork test

open access: yesMaterials and Corrosion, Volume 74, Issue 10, Page 1514-1520, October 2023., 2023
Our article describes a novel method for fitting force‐time data obtained from hydrogen embrittlement tuning fork test. The method enables calculation of first‐ and second‐order time derivatives and separation of the data to different components. Abstract A new data‐analysis method is proposed for processing time‐force data obtained from a recently ...
Aarne Pohjonen   +2 more
wiley   +1 more source

The effect of hydrogen on the fracture toughness of friction‐stir welded API 5L X70 pipeline steels

open access: yesFatigue &Fracture of Engineering Materials &Structures, Volume 45, Issue 10, Page 3009-3024, October 2022., 2022
Abstract The hydrogen embrittlement (HE) leads to severe steel degradation of mechanical properties. The hydrogen atoms diffuse into the steel and get positioned into reversible and irreversible trap sites. The pipe to transport oil and gas needs to be welded to construct long‐distance pipeline projects; thus, friction‐stir welding (FSW) has proven an ...
Joseane M. Giarola   +5 more
wiley   +1 more source

Oxetane Monomers Based On the Powerful Explosive LLM‐116: Improved Performance, Insensitivity, and Thermostability

open access: yesChemPlusChem, Volume 87, Issue 3, March 2022., 2022
Beating the prior art: Several oxetane monomers based on the explosive LLM‐116 were synthesized, characterized and practically evaluated regarding performance and insensitivity. By applying an inexpensive and straightforward chemistry, energetic performances and thermostabilities were obtained which vastly exceed those of known energetic oxetanes ...
Max Born   +3 more
wiley   +1 more source

Study on Susceptibility and Mechanism of Reheat Cracking in Welded Joint of Type 347 Austenitic Stainless Steel

open access: yesInternational Journal of Chemical Engineering, Volume 2022, Issue 1, 2022., 2022
The reheat cracking susceptibility of welded joints has been evaluated by 900°C high‐temperature constant load test and 750°C–900°C high‐temperature slow strain rate tensile (SSRT) test on welded joints of TP347 steel, and the influencing factors and mechanism of reheat cracking in welded joints have been further investigated by microcosmic ...
Jianjun Wang   +2 more
wiley   +1 more source

The Use of a Time‐Frequency Transform for the Analysis of Electrochemical Noise for Corrosion Estimation

open access: yesMathematical Problems in Engineering, Volume 2022, Issue 1, 2022., 2022
This work shows the results of evaluating the corrosion type and rate (CR) in the 6061‐T6 aluminum alloy exposed to ethanol‐gasoline blends (E0, E10, E20, E30, E40, E60, E80, and E100) by analyzing electrochemical noise (EN) signals using the Shannon energy (SSE) and the synchrosqueezing transform (SST).
J. H. Arellano-Pérez   +6 more
wiley   +1 more source

High‐temperature high‐pressure SCC testing of corrosion‐resistant alloys

open access: yesMaterials and Corrosion, Volume 72, Issue 12, Page 1831-1842, December 2021., 2021
Although there is a high tendency to change energy production from carbon‐based to hydrogen‐based, oil and gas are currently still the main resources for fuel systems and industry. Thus, high‐temperature and high‐pressure wells are increasingly exploited. In the present study, results on H2S‐induced cracking at high temperature and pressure by methods,
Anastasiia Galakhova   +2 more
wiley   +1 more source

A Study of 3,5‐Dinitro‐1‐(2,4,6‐trinitrophenyl)‐1H‐pyrazol‐4‐amine (PicADNP) as a New High Energy Density Booster Explosive

open access: yesEuropean Journal of Organic Chemistry, Volume 2021, Issue 13, Page 1964-1970, April 8, 2021., 2021
Two optimized synthetic pathways for the manufacturing of 3,5‐dinitro‐1‐(2,4,6‐trinitrophenyl)‐1H‐pyrazol‐4‐amine (PicADNP) are described. The material was fully characterized, and its crystal structure could be elucidated. Hirshfeld surface and 2D fingerprint plot analysis were performed to assess the sensitivity towards external stimuli.
Daniel Bauer   +4 more
wiley   +1 more source

Hydrogen embrittlement of nodular cast iron

open access: yesMaterials and Corrosion, Volume 72, Issue 1-2, Page 245-254, January 2021., 2021
Ferritic nodular cast iron, intended for use as the material for inserts of canisters for long‐term geological disposal of spent nuclear fuel, was studied for hydrogen sensitivity. Plastic deformation during hydrogen charging increases the hydrogen uptake considerably.
Patrik Sahiluoma   +4 more
wiley   +1 more source

Sulphide‐induced stress corrosion cracking and hydrogen absorption of copper in deoxygenated water at 90°C

open access: yesMaterials and Corrosion, Volume 72, Issue 1-2, Page 317-332, January 2021., 2021
Stress corrosion cracking of oxygen‐free phosphorous‐alloyed copper was investigated in sulphide and chloride‐containing deoxygenated water at 90°C with sulphide concentrations of 0.001 and 0.00001 M. Several intergranular defects were found in the specimen exposed to the high sulphide environment.
Antti Forsström   +4 more
wiley   +1 more source

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