Hydrogen Effects on the Mechanical Properties of Austenitic Stainless Steels - A Compendium of Data from Testing at the Savannah River Laboratory in Support of High Pressure Hydrogen Service

Lam, Poh-Sang

doi:10.2172/1440407

Cited by 2 publications

(6 citation statements)

References 9 publications

(29 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“… The fracture toughness testing shows a strong orientation effect with respect to the forging flow lines in the high energy rate forged (HERF) stainless steels (Figs. [6][7][8][9][10].…”

Section: Discussionmentioning

confidence: 99%

“…The stainless steel test data in Reference [2], and those published in the public domain, such as Caskey, et al [3,4], Louthan, et al [5,6], and Somerday, et al [7], were carefully compared with those in Reference [1]. The test environment, conditions and data type generated at SRL and relevant to mechanical properties for hydrogen systems materials selection and design was consolidated and reported in Tables 1-4 of the technical report [8].…”

Section: Srnl-sti-2018-00176mentioning

confidence: 99%

“…Most of the tensile tests were carried out with smooth bar specimens with gage lengths of 12.7, 25.4, and 50.8 mm. The data are summarized in detail in a comprehensive review of these properties [8]. The test temperature ranged from 4 K (liquid helium) [9], 78 K (liquid nitrogen) to 380 K in air [1].…”

Section: Tensile Propertiesmentioning

confidence: 99%

“…Because the conditions of hydrogen precharge would bias the test results, only the room temperature (298 K) data from noncharged specimens but were tested in air and in 69 MPa gaseous environments (hydrogen and helium) were reported. Additional tensile data for hydrogen-precharged high purity alloys (A, B, and C) tested in air at room temperature are provided to complement the data when the test pressures of the noncharged specimens are untraceable [8].…”

Section: Tensile Propertiesmentioning

confidence: 99%

See 3 more Smart Citations

A Compendium of Mechanical Testing of Austenitic Stainless Steels in Hydrogen

Lam

Duncan

Morgan

et al. 2018

Volume 1A: Codes and Standards

View full text Add to dashboard Cite

Archival materials test data on austenitic stainless steels for service in high pressure hydrogen gas has been reviewed. The bulk of the data were from tests conducted prior to 1983 at the Savannah River Laboratory, the predecessor to the Savannah River National Laboratory, for pressures up to 69 MPa (10,000 psi) and at temperatures within the range from 78 to 400 K (−195 to 127 °C). The data showed several prominent effects and correlations with test conditions: • There was a significant reduction in tensile ductility as measured by reduction of area or by the total elongation with hydrogen. Hydrogen effects were observed when the specimens were tested in the hydrogen environment, or the specimens were precharged in high pressure hydrogen and tested in air or helium. • There was a significant reduction in fracture toughness with hydrogen (and sometimes in tearing modulus which is proportional to the slope of the crack resistance curve). • The effects of hydrogen on ductility can be correlated to the nickel content of the iron-chromium-nickel steels. The optimal nickel content to retain the high tensile ductility in these alloys was 10 to at least 20 wt. %. • The effects of hydrogen can be correlated to the grain size. Large grain sizes exhibited a greater loss of ductility compared to small grain sizes. The Savannah River Laboratory test data, especially those not readily available in the open literature, along with the sources of the data, are documented in this paper.

show abstract

“… The fracture toughness testing shows a strong orientation effect with respect to the forging flow lines in the high energy rate forged (HERF) stainless steels (Figs. [6][7][8][9][10].…”

Section: Discussionmentioning

confidence: 99%

Section: Srnl-sti-2018-00176mentioning

confidence: 99%

Section: Tensile Propertiesmentioning

confidence: 99%

Section: Tensile Propertiesmentioning

confidence: 99%

See 2 more Smart Citations

A Compendium of Mechanical Testing of Austenitic Stainless Steels in Hydrogen

Lam

Duncan

Morgan

et al. 2018

Volume 1A: Codes and Standards

View full text Add to dashboard Cite

show abstract

“…The apparent initial impact of gaseous hydrogen on the wear of the stainless steel may be attributed to the hydrogen diffusivity in these materials. The hydrogen diffusion in stainless steels is known to be slower [8,9] in comparison to carbon steels [10][11][12]. Thus, the hydrogen effects on wear in gaseous hydrogen are expected to be affected by exposure time in the hydrogen.…”

Section: Discussionmentioning

confidence: 99%

Wear Testing of Stainless Steels in Hydrogen (U)

Lam

Adams

2008

Self Cite

View full text Add to dashboard Cite

Hydrogen Effects on the Mechanical Properties of Austenitic Stainless Steels - A Compendium of Data from Testing at the Savannah River Laboratory in Support of High Pressure Hydrogen Service

Cited by 2 publications

References 9 publications

A Compendium of Mechanical Testing of Austenitic Stainless Steels in Hydrogen

A Compendium of Mechanical Testing of Austenitic Stainless Steels in Hydrogen

Wear Testing of Stainless Steels in Hydrogen (U)

Contact Info

Product

Resources

About