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Search Publications by: Zachary Buck (Fed)

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Displaying 1 - 13 of 13

Effect of strain rate on tensile test results in hydrogen and other concerns

July 29, 2025
Author(s)
May Martin, Zachary Buck, Allen Eckhardt, Damian Lauria, Andrew Slifka, Matthew Connolly
Tensile tests of an X52 pipeline steel were conducted in air and in hydrogen gas over a range of five orders of magnitude of strain rate. Properties such as elastic modulus, yield strength and ultimate tensile strength were unaffected by hydrogen or by

Microstructure effects on the fracture surface resistance of base metal in line pipe steels in high pressure H2 gas

April 29, 2025
Author(s)
Andrew LeBoeuf, Santigopal Samanta, Joseph Ronevich, Christopher San Marchi, Zachary Buck, Matthew Connolly, Lawrence Cho, Kip Findley
Cost-effective transportation of gaseous hydrogen requires the use of long-distance low-carbon steel pipeline networks. Employing higher strength (X65-X70) grades can allow for economic viability by enabling operation at higher pressures. While higher

Hydrogen Embrittlement Susceptibility and Fracture Toughness Measurements of Welded X65M Pipeline Steels

November 14, 2024
Author(s)
Newell Moser, Zack Buck, Nicholas Derimow, May Ling Martin, Damian Lauria, Enrico Lucon, Peter Bradley, Matthew Connolly
Hydrogen is known to deteriorate the mechanical performance of steels (i.e., hydrogen embrittlement). The welding processes involved in the manufacturing and joining of steel pipelines locally modifies the microstructure of the steel, further complicating

Assessing girth weld quality of pipeline steels and their susceptibility to hydrogen embrittlement

August 28, 2024
Author(s)
Zack Buck, Newell Moser, Nicholas Derimow, May Ling Martin, Damian Lauria, Enrico Lucon, Douglas Stalheim, Peter Bradley, Matthew Connolly
Hydrogen has long been considered a viable carbon-free option for ever-increasing societal desires to transform our energy infrastructure towards more renewable and alternative technologies. However, the effects of hydrogen-assisted damage mechanisms that

Effects of hydrogen on the evolution of 4130 steel microstructure as a result of tensile loading

July 12, 2024
Author(s)
Zack Buck, May Ling Martin, Damian Lauria, Jason Killgore, Peter Bradley, Yan Chen, Ke An, Matthew Connolly
Neutron diffraction and Scanning Kelvin Probe Force Microscopy (SKPFM) were used to study the evolution of lattice strain, dislocation density, and phase partitioning of a ferrite/martensite pressure vessel steel (AISI 4130) that resulted from tensile

Assessing girth weld quality of pipeline steels and their susceptibility to hydrogen embrittlement

June 16, 2024
Author(s)
Zack Buck, Newell Moser, May Ling Martin, Nicholas Derimow, Damian Lauria, Enrico Lucon, Douglas Stalheim, Peter Bradley, Matthew Connolly
Hydrogen is known to cause premature failure in various steel infrastructures due to effects of embrittlement, which is particularly detrimental to ferritic steel structures such as pipelines and pressure vessels. Therefore, understanding the

Effects of mechanical deformation on dislocation density and phase partitioning in 4130 steel

August 22, 2023
Author(s)
Zachary Buck, Matthew Connolly, May Martin, Damian Lauria, Jason Killgore, Peter Bradley, Yan Chen, Ke An, Andrew Slifka
Interrupted tensile tests were performed on an AISI 4130 pressure vessel steel and investigated by neutron diffraction and scanning microscopy techniques. Analysis of the neutron diffraction patterns reveal a partitioning of ferrite and martensite phases

Determining Steel Weld Qualification and Performance for Hydrogen Pipelines: Phase I Report

May 23, 2023
Author(s)
Matthew Connolly, May Ling Martin, Zack Buck, Newell Moser, Enrico Lucon, Damian Lauria, Peter Bradley, Andrew Slifka, Robert Amaro
This report details the results of Phase I of the DOT/PHMSA sponsored work on "Determining Steel Weld Qualification and Performance for Hydrogen Pipelines". In this work, the goals of Phase I were 1) to perform a literature review of steel weld

Synergistic Fire Resistance of Nanobrick-wall Coated 3D Printed Photopolymer Lattices

March 16, 2023
Author(s)
Thomas Kolibaba, Callie Higgins, Zack Buck, Dash Weeks, Jason Killgore
Photopolymer additive manufacturing has become the subject of widespread interest in recent years due to its capacity to enable fabrication of difficult geometries that are impossible to build with traditional modes of manufacturing. The flammability of

Evaluating a Natural Gas Pipeline Steel for Blended Hydrogen Service

March 19, 2022
Author(s)
May Ling Martin, Matthew Connolly, Zack Buck, Peter Bradley, Damian Lauria, Andrew Slifka
An X70 natural gas pipeline steel that is being considered for blended natural gas/hydrogen gas service was evaluated in a high-pressure hydrogen gas environment. Fracture toughness testing and fatigue crack growth rate testing were conducted according to

Materials Testing in Hydrogen

November 30, 2021
Author(s)
Matthew Connolly, May Ling Martin, Damian Lauria, Peter Bradley, Zack Buck, Andrew Slifka, Robert L. Amaro
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