The Solubility of Hydrogen in Liquid Pure Iron

Gunji, Kôki; Matoba, Sachio; Ono, Kiyoo

doi:10.2320/jinstmet1952.28.2_59

Cited by 3 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The change in the ''indirectly'' measured amount of helium is not obvious and, in fact, might be related to the temperature gradient in the hot volume when using argon in their apparatus. Moreover, a study made by Gunji et al [52] on the hydrogen solubility of molten iron showed the influence of the reference gas on the evaluation of the measured hydrogen solubility obtained by the Sieverts' technique for liquid iron. They clearly indicated that helium was a better reference gas than argon.…”

Section: B the Al-h Systemmentioning

confidence: 98%

Modeling the Hydrogen Solubility in Liquid Aluminum Alloys

Harvey

Chartrand

2010

Metall Mater Trans B

View full text Add to dashboard Cite

The modeling of hydrogen solubility in multicomponent Al-(Li, Mg, Cu, and Si) liquid phase has been performed with a thermodynamic approach using the modified quasichemical model with the pair approximation (MQMPA). All hydrogen solubility data available in literature was assessed critically to obtain the binary parameters of the MQMPA model for the Al-H, Li-H, Mg-H, Cu-H, Zn-H, and Si-H melts. For the Li-H system, a new thermodynamic description of the stable solid lithium hydride was determined based on the c p found in literature. The thermodynamic model for the Al-Li system also was reassessed in this work to take into account the short-range ordering observed for this system. Built-in interpolation techniques allow the model to estimate the thermodynamic properties of the multicomponent liquid solution from the liquid model parameters of the lower order subsystems. A comparison of the calculated hydrogen solubility performed at various equilibrium conditions of temperature, pressure, and composition with the available experimental data found in the literature is presented in this work, as well as a comparison with some results from previous modeling.

show abstract

Section: B the Al-h Systemmentioning

confidence: 98%

Modeling the Hydrogen Solubility in Liquid Aluminum Alloys

Harvey

Chartrand

2010

Metall Mater Trans B

View full text Add to dashboard Cite

show abstract

“…Evaluations of the coefficients A and B in Eq. 4 yielded values between –1700 and –1910 for A and values between 2.3 and 2.42 for B 2, 3, 6, 8, 25–27, in average ${\bar {A}}$ = ‐ 1805 and ${\bar {B}}$ = 2.35.…”

Section: Hydrogen Solubility Using Dilute Solution Theorymentioning

confidence: 99%

Determination of Hydrogen Solubility in Fe–Mn–C Melts

Lob

Senk

Hallstedt

2011

steel research int.

View full text Add to dashboard Cite

High manganese steels are supposed to be sensitive to hydrogen embrittlement. This can be explained by increased hydrogen solubility in comparison to unalloyed steels. To minimise hydrogen pick up during melting operations, it is necessary to know accurately the hydrogen solubility as function of hydrogen partial pressure, temperature and Mn content. In this work in situ measurements of hydrogen content at 12, 18 and 23 wt.% Mn (and 0.6 wt.% C) using the Hydris 1 system are compared to pin-tube measurements. Below about 7 ppm [H] both methods gave the same results and above 7 ppm [H] the in situ measurement showed slightly higher hydrogen contents because some hydrogen is lost during quenching with the pin-tube method. The measured solubilities were compared with thermodynamic calculations. Using dilute solution theory with data developed for alloyed Fe-based melts with up to 10 wt.% Mn gives reasonable results except that the hydrogen solubility is slighltly underestimated for the presently investigated Mn contents. This could be compensated by using an interaction parameter of e Mn H ¼ -0.004 instead of e Mn H ¼ -0.0012. A Calphad type extrapolation from the binary Fe-H, Mn-H and Fe-Mn systems gave results very close to the experimental ones. This work is a contribution from the collaborative research centre SFB 761 ''Steel -ab initio''.

show abstract