The Effects of Electrochemical Hydrogen Charging on Charpy Impact Toughness and Dry Sliding Tribological Behavior of AISI 316H Stainless Steel

In this work, solution-annealed AISI 316H grade austenitic stainless steel was studied in terms of investigating the electrolytic hydrogen charging effects on the resulting Charpy impact toughness and dry sliding tribological behavior. Conventional Charpy impact bending tests were employed to study...

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Published inCrystals (Basel) Vol. 13; no. 8; p. 1249
Main Authors Falat, Ladislav, Čiripová, Lucia, Petruš, Ondrej, Puchý, Viktor, Petryshynets, Ivan, Kovaľ, Karol, Džunda, Róbert
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.08.2023
Subjects
Analysis
Annealing
Austenitic stainless steels
austenitic steel
Conformity
Deformation
Dehydrogenation
Dynamic loads
Energy industry
Fracture surfaces
Hydrogen
Hydrogen charging
Hydrogenation
Impact strength
Impact tests
impact toughness
Investigations
Mechanical analysis
Mechanical properties
Microstructure
Sliding
Stainless steel
Steel, Stainless
Test procedures
Tribology
United States > US
Japan
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Summary:In this work, solution-annealed AISI 316H grade austenitic stainless steel was studied in terms of investigating the electrolytic hydrogen charging effects on the resulting Charpy impact toughness and dry sliding tribological behavior. Conventional Charpy impact bending tests were employed to study the mechanical response of the investigated material to dynamic loading conditions, whereas dry linear sliding tribological tests were used to study material friction and wear behavior. The obtained mechanical and tribological properties were correlated with corresponding fracture and tribological mechanisms, which were determined from morphological observations of fracture surfaces and tribological tracks. The applied testing procedures were individually carried out for the non-hydrogenated, hydrogen-charged, and dehydrogenated material conditions. The observed changes in individual properties due to applied hydrogen charging were rather small, which indicated the good resistance of solution-annealed AISI 316H steel against material degradation in currently used electrolytic hydrogenation conditions.
ISSN:2073-4352
2073-4352
DOI:10.3390/cryst13081249