The Effect of Oxygen on Hydrogen Transport in Copper

Hydrogen-involved tensile and cyclic deformation behavior of low-alloy pressure vessel steel

“…After hydrogen suppress hydrogen desorption during subsequent tests. [12] Tensile tests were performed in air at controlled strain rates using a universal testing machine (AG-10TA). For high-temperature tests, a three-zone-controlled split furnace was used.…”

Hydrogen depth profile in phosphorus-doped, oxygen-free copper after cathodic charging

“…Experimentally, it is known that quite a high hydrogen [10,13,[19][20][21] pressure is needed to make the bubbles grow [11]. The magnitude of the hydrogen pressure will be analysed below.…”

“…Wampler et al [9] suggest that impurities (unspecified) can act as hydrogen trapping sites, increasing the hydrogen content in the material. It has also been shown that hydrogen charging of pure copper can nucleate and grow bubbles of hydrogen or, in the presence of oxygen, of water [4,6,7,[9][10][11]. The literature review of Condon and Schober [11] describes various mechanisms causing bubbles to grow, which eventually can create microcracks.…”

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

“…After the hydrogen charging process, the samples were then electroplated with copper to prevent hydrogen desorption because the diffusivity of hydrogen in copper is much lower than that in 316L austenite steel. 25) One liter of electroplating solution contained 22.5 g cuprous cyanide, 33.7 g sodium cyanide, 15.0 g sodium carbonate, and 0.2 g sodium thiosulfate, with the pH maintained at 12:0$12:5. The electroplating process was conducted for $5 min at 1-2 V and at 33-39 C. 10) Several tensile samples were homogenized at 600 C for 2 h to remove the hydrogen concentration gradient throughout their thickness dimension.…”