Solubility of hydrogen in liquid Fe−Co−Ni alloys

Blossey, Ralf; Pehlke, Robert D.

doi:10.1007/bf02814968

Cited by 26 publications

(27 citation statements)

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“…Utilizing the CPSM, the effect of pressure on the equilibrium solubility was measured at three different temperatures by Fedorchenko et al [13] and at 1600 ЊC by Blossey and Pehlke. [11] They agreed that for pressures up to 1 atm, the relationship, shown in Eq. [4], between the square root of nitrogen gas pressure and the amount of dissolved nitrogen was obeyed (Sieverts' law).…”

Section: Review Of Literaturementioning

confidence: 86%

“…[8,[11][12][13][14]17,18] Other investigators are further from agreement with those investigators mentioned previously, and Busch and [3] 1960 0.00 CPSM Humbert and Elliott [7] 1960 0.5 to 1.21 CPSM Stomakhin et al [8] 1965 1.26 CPSM Blossey and Pehlke [11] 1966 1.30 CPSM Wada et al [12] 1968 1.30* LMT Fedorchenko et al [13] 1968 1.50 CPSM Lange and Schenck [14] 1970 1.44 quenching Kojima et al [15] 1975 1.30 to 3.50 ST Lin and Chang [16] 1977 0.53 estimated Wada and Pehlke [17] 1977 1.3 CPSM Kim and McLean [18] 1987 1.14 ST solubility of nitrogen in nickel could be measured because of the very low solubility of nitrogen in nickel. Figure 1 shows that the solubility dependence on temperature exhibits a linear behavior, and the results of Kim and McLean [18] and Stomakhin et al [8] display a similar temperature dependence.…”

Section: Review Of Literaturementioning

confidence: 99%

“…nickel-based alloys. [3,7,8,[10][11][12][13][14][15][16][17][18] The reported solubility values In general, the mathematical expression for the computaof nitrogen in liquid nickel at 1600 ЊC and 1 atmosphere tion of nitrogen content by the Sieverts' method at a certain nitrogen pressure are listed with the experimental techniques melting temperature (T m ) and nitrogen pressure (P) was in Table I. The table shows that the experimental values of given by Humbert and Elliott, [7] Stomakhin et al, [8] and the nitrogen solubility range from zero to 0.0035 wt pct.…”

Section: Review Of Literaturementioning

confidence: 99%

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The solubility of nitrogen in liquid pure nickel

Abdulrahman

Hendry

2001

Metall Mater Trans B

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A constant-volume Sieverts' method was used to determine the solubility of nitrogen in liquid nickel. This method has been used for the first time on this type of material. It was found that the solubility of nitrogen in pure nickel at 1600 ЊC and 1 atm is equal to 0.0020 wt pct (with an experimental error of Ϯ0.0002 pct). The solubility increases with increasing temperature. The temperature coefficient of nitrogen solubility within the temperature range from 1500 ЊC to 1750 ЊC is equal to 1.6 ϫ 10 Ϫ6 wt pct/ЊC. The solution of nitrogen in pure nickel at 1600 ЊC and pressures up to 1 atm was found to obey Sieverts' law. I. REVIEW OF LITERATURETHE solubility of nitrogen in liquid metal is expressed by the equation [3] where N 2 # % Absorption Desorption 2N (dissolved in liquid metal) [1] T ϭ reference temperature in Kelvin; T m ϭ melt temperature in Kelvin; This reaction was the focus of the present investigation.pct N ϭ equilibrium solubility of nitrogen at a given It was studied at equilibrium and at different temperatures temperature T and nitrogen pressure in and pressures, where the accuracy of the experimental results weight percent; depends on the reliability of the experimental technique pct NЉ ϭ equilibrium solubility of nitrogen at a given being used. Most of the work reported in the literature on temperature T and nitrogen pressure, connitrogen solubility in liquid pure iron and nickel was carried verted to 1 atm nitrogen pressure, in weight out by employing variations of two basic techniques. These percent; are the Sieverts' and sampling techniques. The Sieverts' V ϭ reaction system hot volume, in milliliters, at technique measures the nitrogen content at given experimenstandard temperature and pressure; tal conditions by establishing a gas-metal equilibrium either

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Section: Review Of Literaturementioning

confidence: 86%

Section: Review Of Literaturementioning

confidence: 99%

Section: Review Of Literaturementioning

confidence: 99%

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The solubility of nitrogen in liquid pure nickel

Abdulrahman

Hendry

2001

Metall Mater Trans B

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“…[3][4][5][6][7] As well, some studies have been conducted for ternary Fe-Cr-Ni system. [8][9][10] However, a few studies have been undertaken for Fe-Cr-Ni-Mo system. Wada and Pehlke 11) measured the solubility of nitrogen in the molten alloys of Fe-~40 mass%Cr-~20 mass%Ni-~9 mass%Mo-5 mass%Mn by Sieverts method.…”

Section: Introductionmentioning

confidence: 99%

Solubility of Nitrogen in Fe^|^ndash;Cr^|^ndash;Ni^|^ndash;Mo Stainless Steel under a 1 atm N2 Gas Atmosphere

et al. 2012

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Solubility of nitrogen in liquid Fe-Cr-Ni-Mo stainless steel was measured by sampling method in the temperature range from 1 723 K to 1 923 K under a N2 gas of 1 atm. As a result, the solubility increased with increasing Cr, Mo and Mn content, whilst it decreased with increasing Ni content. In addition, the solubility increased with decreasing temperature. Thermodynamic analysis was carried out taking Fe-20 mass% Cr alloy as a solvent referring to the manner proposed by Anson. The first attempt showed that the calculated solubility, applying the reported first-order interaction coefficients of N against Cr, Ni, Mo and Mn, did not agree with the measured values. This inconsistency was found to be attributed to the interaction coefficient of N against Ni ( ). Therefore, reassessment to derive available up to 30 mass% Ni has been made with the data obtained by us and Anson. Thereby the corresponding coefficient was derived as 0.0063 with which the solubility could be well predicted.

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“…5,6) However, the beneficial influence of nitrogen is usually limited by its low solubility in some steels, 3,4) which can result in serious nitrogen segregation and nitrogen pore defect during the melting and solidification of HNSs. Many thermodynamic studies 4,[7][8][9][10] suggested that increasing nitrogen partial pressure was able to enhance the solubility of nitrogen and effectively eliminate pore defects for a given HNS. Therefore, the pressurized metallurgy has been considered as a promising method to obtain melt with high nitrogen content and keep nitrogen dissolved during the solidification of HNSs.…”

Section: Introductionmentioning

confidence: 99%

Effect of Solidification Pressure on Interfacial Heat Transfer and Solidification Structure of 19Cr14Mn0.9N High Nitrogen Steel

Zhu

Wang

et al. 2018

ISIJ Int.

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The effect of solidification pressure (0.5, 0.85 and 1.2 MPa) on heat transfer between ingot and mould was investigated with the measurement of cooling curves and calculation of heat transfer coefficient. Combined with cooling rate, temperature gradient and local solidification time (LST), the influence of pressure on solidification structure of 19Cr14Mn0.9N was revealed by macrostructure observation. The calculation results of heat transfer coefficient, obtained by the Beck-Nonlinear estimation technique, indicate that increasing solidification pressure obviously enhances heat transfer at the ingot/mould interface. And higher solidification pressure is benefit to increase cooling rate and temperature gradient of ingot. Meanwhile, increasing solidification pressure considerably suppresses nitrogen gas pore, and reduces the whole area of dispersing porosity and shrinkage, which is favorable to obtain a sound ingot. With the solidification pressure increasing from 0.5 to 1.2 MPa, the columnar zone is lengthened, the columnar-toequiaxed transition (CET) position gradually moves to the ingot center, and both dendritic arm spacing (λ 1 and λ 2 ) and local solidification time (LST) gradually decrease. The solidification structure is significantly refined and compressed under higher solidification pressure.

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Solubility of hydrogen in liquid Fe−Co−Ni alloys

Cited by 26 publications

References 6 publications

The solubility of nitrogen in liquid pure nickel

The solubility of nitrogen in liquid pure nickel

Solubility of Nitrogen in Fe^|^ndash;Cr^|^ndash;Ni^|^ndash;Mo Stainless Steel under a 1 atm N2 Gas Atmosphere

Effect of Solidification Pressure on Interfacial Heat Transfer and Solidification Structure of 19Cr14Mn0.9N High Nitrogen Steel

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