Effects of Hydrogen Diffusion on the Mechanical Properties of Austenite 316L Steel at Ambient Temperature

Abstract

This study examined how the strain rate affects the room-temperature tensile behavior of hydrogen-charged 316L stainless steels. A hightemperature homogenization treatment was applied to the specimens after hydrogen charging and copper electroplating to remove the hydrogen concentration gradient. A softening phenomenon was observed in the hardening behavior of the H-charged and homogenized specimen at a strain rate of 2 Â 10 À3 /s. The observation was further confirmed by an inspection of the fracture surface of the tensile test specimen.

Hydrogen damage of steels: A case study and hydrogen embrittlement model

“…They found that cathodic hydrogen charging produced major surface hardening. In general, hydrogen charging increases hardness of metallic materials (plain carbon steels, austenitic stainless steels, stainless steels, Ti alloy) [3,[35][36][37], but for some alloys a limited effect on hardness, or even opposite effect: H-induced softening, was observed [38].…”

A novel solvent-assisted vapor absorption based headspace analysis technique for the determination of diffusion and solid–air partition coefficients of methanol in paper materials

“…However, the effectiveness of these treatments on methanol mass transfer has not been evaluated. In addition to the initial methanol content in the paper, the mass transfer of the methanol is determined by two key parameters; i.e., the diffusion coefficient (D) and the solid-air partition coefficient (K d ) [9]. Therefore, it is important to determine these coefficients of methanol in the paper materials with different surface treatments in order to accurately assess the risk to human health posed by the use of these paper products in food packaging.…”

High temperature thermal stability of nanocrystalline 316L stainless steel processed by high-pressure torsion

“…In addition, it is used also as a standard construction material in engineering applications and nuclear power facilities due to its superior mechanical properties such as high strength, good ductility, high fracture toughness, excellent corrosion resistance and a low rate of absorption for neutron radiation [3,4]. In practice, 316L stainless steel has been studied extensively in order to further improve the thermal and mechanical properties through tailoring of its microstructure and chemical composition [4][5][6][7][8].…”