Zobrazeno 1 - 10
of 48
pro vyhledávání: '"Boian T. Alexandrov"'
Publikováno v:
Journal of Manufacturing Processes. 79:767-788
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4a2935ba3065eb293fefc67f5d1ba2f6
https://doi.org/10.1016/j.jmapro.2022.05.027
https://doi.org/10.1016/j.jmapro.2022.05.027
Publikováno v:
Volume 4B: Materials and Fabrication.
ASME Case N-888, Similar and Dissimilar Metal Welding Using Ambient Temperature SMAW and Machine GTAW Temper Bead Technique, requires a 48-hour hold time before nondestructive examination (NDE) can be performed to ensure hydrogen-induced cracking (HI
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ead54b378f8175c3c147e8df29230911
https://doi.org/10.1115/pvp2022-84781
https://doi.org/10.1115/pvp2022-84781
Autor:
Boian T. Alexandrov, Jeffrey Stewart
Publikováno v:
Journal of Manufacturing Processes. 66:325-340
The tempering response in the heat-affected zone (HAZ) of low alloy steels during temper bead welding is heavily dependent on the experienced thermal history. Past work has developed quantification approaches for isothermal tempering conditions and s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8b57729381f0c405d023724bc210c191
https://doi.org/10.1016/j.jmapro.2021.04.008
https://doi.org/10.1016/j.jmapro.2021.04.008
Autor:
Timothy Hanlon, Chen Shen, Boian T. Alexandrov, Nicholas J. Krutz, Jiashi Miao, Michael J. Mills, Carolin Fink, Wei Zhang
Publikováno v:
Metallurgical and Materials Transactions A. 52:3122-3139
The precipitation of a recently introduced γ′-strengthened, Powder Metallurgy (PM) nickel superalloy is characterized and modeled. A range of experimental techniques are employed to capture aspects of the alloy microstructure necessary to calibrat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ba027dfcd02249ccf6971be0ad2eaa6e
https://doi.org/10.1007/s11661-021-06307-4
https://doi.org/10.1007/s11661-021-06307-4
Autor:
Boian T. Alexandrov, Samuel Luther
Publikováno v:
Welding Journal. 100:27-39
Face-centered cubic alloys, such as nickel-based alloys and austenitic stainless steels, are important to many industries, notably nuclear power generation and petrochemical. These alloys are prone to ductility-dip cracking (DDC), an inter-mediate-te
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7b72b9227b8761d7dd0193606c89a895
https://doi.org/10.29391/2021.100.003
https://doi.org/10.29391/2021.100.003
Publikováno v:
Welding Journal. 99:312s-322s
The use of Type 16-8-2 filler metal was examined for application in structural welds on 304H and 347H stainless steels for high-temperature service applications and compared to welds with matching filler metals 308H and 347, respectively. Microstruct
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fd01f5f265a8f18e9888ee1436652460
https://doi.org/10.29391/2020.99.029
https://doi.org/10.29391/2020.99.029
Publikováno v:
Welding Journal. 99:101s-109s
The delayed hydrogen cracking test was performed to evaluate the hydrogen-assisted cracking (HAC) susceptibility of Grade T24 steel base metal and the simulated coarse-grained heat-affected zone (CGHAZ). The base metal did not fail after testing for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d45229f889b09c094a3cc79eadddc227
https://doi.org/10.29391/2020.99.010
https://doi.org/10.29391/2020.99.010
Preventing failure due to corrosion poses a challenge to the oil and gas industry. A cost-effective way to prevent such failures is the application of corrosion-resistant nickel-based weld overlays using arc welding processes. Previous research perfo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ccacf89c24b24927c57473e6f2a65431
https://doi.org/10.1115/1.0000262v
https://doi.org/10.1115/1.0000262v
Qualification for weld strength is typically accomplished using cross weld tensile testing. This style of testing only gives the global behavior of the welded joint and limited materials properties, such as elongation at failure and tensile strength
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::da86415f9cfe3f7866f95ca18a1629ff
https://doi.org/10.1115/1.0000191v
https://doi.org/10.1115/1.0000191v
Autor:
Michael W. Kuper, Boian T. Alexandrov
Publikováno v:
Metallurgical and Materials Transactions A. 50:2732-2747
This study aimed to determine the mechanism of δ-ferrite retention in the coarse-grained HAZ (CGHAZ) of Grade 91 steel dissimilar metal welds (DMWs) with Ni-based filler metals. This phenomenon was investigated in four DMWs made with cold-wire gas t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::acb1f32f67b7b3954fb39c76fbd4f04b
https://doi.org/10.1007/s11661-019-05182-4
https://doi.org/10.1007/s11661-019-05182-4