Andrew Slifka

Research Interests:

Mechanical measurements of structural steels in high-pressure hydrogen gas, thermal conductivity measurement using steady-state methods

Professional Affiliations:

ASME, contributing member

Awards:

2008 Building Tomorrow's Workplace

Publications

Modification to a testing assembly to enable strain-life measurements in pressurized hydrogen gas

August 25, 2023

Author(s)

Peter Bradley, May Ling Martin, Matthew Connolly, Robert Amaro, Damian Lauria, Andrew Slifka

Strain-controlled fully-reversed fatigue testing, or strain-life testing, provides critical information on material lifetime and damage response. Strain-life

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

August 22, 2023

Author(s)

Zack Buck, Matthew Connolly, May Ling 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

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

Determining Steel Weld Qualification and Performance for Hydrogen Pipelines

March 17, 2023

Author(s)

Matthew Connolly, Andrew Slifka, Damian Lauria, Peter Bradley, May Ling Martin, Zack Buck, Newell Moser, Robert Amaro, Chris Looney

Ductility-driven ranking system for API-grade steels in high pressure gaseous hydrogen transmission pipelines

December 19, 2022

Author(s)

Douglas Stalheim, Andrew Slifka, Matthew Connolly, Enrico Lucon, Aaron Litschewski, Pello Uranga

There is strong economic and environmental interest in hydrogen as an energy source to contribute to combatting climate change. Hydrogen diffusion into the

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Patents (2018-Present)

Multiple Specimen Testing

NIST Inventors

Dave McColskey and Andrew Slifka

Systems and methods are described for concurrently applying loads to multiple test specimens. The systems and methods are useful for cyclical tensile loading of specimens such as in fatigue strength evaluations. The systems and methods are also useful for low frequency cyclical loading evaluations.

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Andrew Slifka (Fed)

Publications

Patents (2018-Present)