Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Damian S. Lauria"'
Autor:
Damian S. Lauria, Robert L. Amaro, Jun-Sang Park, Christopher P. Looney, Matthew J. Connolly, May L. Martin, Peter E. Bradley, Andrew J. Slifka
Publikováno v:
Acta Materialia. 180:272-286
The deformation fields near fatigue crack tips grown in hydrogen and in air were measured using high-energy x-ray diffraction. A larger magnitude of elastic strain was observed in the hydrogen case compared to the air case. The magnitude of elastic s
Autor:
May L. Martin, Andrew J. Slifka, Christopher P. Looney, Robert L. Amaro, Damian S. Lauria, Peter E. Bradley
Publikováno v:
Engineering fracture mechanics. 216
Strain-life testing of a 4130 pressure vessel steel was conducted in hydrogen gas through the careful adaptation of an existing hydrogen-gas mechanical-testing apparatus. The strain-life mechanical results reveal that hydrogen has a significant effec
Autor:
Elizabeth S. Drexler, Andrew J. Slifka, Robert L. Amaro, Jeffrey W. Sowards, Matthew J. Connolly, May L. Martin, Damian S. Lauria
Publikováno v:
J Res Natl Inst Stand Technol
Several welds and associated heat-affected zones (HAZs) on two API X70 and two API X52 pipes were tested to determine the fatigue crack growth rate (FCGR) in pressurized hydrogen gas and assess the area of the pipe that was most susceptible to fatigu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9cf9768a24077cf1cda34c56111d8612
https://europepmc.org/articles/PMC7339726/
https://europepmc.org/articles/PMC7339726/
Publikováno v:
J Res Natl Inst Stand Technol
The viscosities of three pentaerythritol tetraalkanoate ester base oils and one fully formulated lubricant were measured with an oscillating piston viscometer in the overall temperature range from 275 K to 450 K with pressures up to 137 MPa. The alka
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::293b56abe4bb8d0d55a6d774fe46898b
https://europepmc.org/articles/PMC7340553/
https://europepmc.org/articles/PMC7340553/
Characteristics and mechanisms of hydrogen-induced quasi-cleavage fracture of lath martensitic steel
Autor:
John G. Speer, Peter E. Bradley, May L. Martin, Lawrence Cho, Matthew J. Connolly, Damian S. Lauria, Kip O. Findley, Andrew J. Slifka, Jake T. Benzing, Eun Jung Seo
Publikováno v:
Acta Materialia. 206:116635
This study presents an in-depth characterization of the microstructures, crystallographic orientations, and dislocation characteristics beneath hydrogen-induced quasi-cleavage fracture features of an as-quenched, lath martensitic (α') 22MnB5 steel.
Publikováno v:
Journal of Pressure Vessel Technology. 140
The economical and efficient transportation of hydrogen gas is necessary for it to become a widespread source of energy. One way to improve the economics is to lower the cost of building hydrogen gas pipelines. The recent modification to the ASME B31
Autor:
Louis E. Hayden, Elizabeth S. Drexler, Robert L. Amaro, Nik Hrabe, Douglas G. Stalheim, Damian S. Lauria, Andrew J. Slifka
Publikováno v:
Journal of Pressure Vessel Technology. 140
A comprehensive testing program to determine the fatigue crack growth rate (FCGR) of pipeline steels in pressurized hydrogen gas was completed. Four steels were selected, two X52 and two X70 alloys. Other variables included hydrogen gas pressures of
Autor:
Elizabeth S. Drexler, Andrew J. Slifka, Robert L. Amaro, A. E. Stevenson, Neha Rustagi, P. G. Keefe, J. D. MccColskey, Damian S. Lauria
Publikováno v:
Corrosion Science. 78:313-321
Fatigue crack growth tests were conducted on two pipeline steel alloys, API 5L X52 and X100. Baseline tests were conducted in air, and those results were compared with tests conducted in pressurized hydrogen gas. All tests were run at (load ratio) R
Autor:
Elizabeth S. Drexler, Douglas G. Stalheim, Louis E. Hayden, Andrew J. Slifka, Nicholas Barbosa, Damian S. Lauria, Robert L. Amaro
Publikováno v:
Fatigue & Fracture of Engineering Materials & Structures. 37:517-525
Hydrogen is known to have a deleterious effect on most engineering alloys. It has been shown repeatedly that the strength of steels is inversely related to the ductility of the material in hydrogen gas. However, the fatigue properties with respect to