Surface tension of liquid Fe-Cr-O alloys at 1823 K

Yamamoto, Koji; Morita, Kazuki

doi:10.1007/s11663-005-0025-0

Cited by 24 publications

(14 citation statements)

References 42 publications

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“…It is considered that the contact angle decrease was due to the oxygen adsorption at the metal surface, namely due to the decrease in the surface tension. 10) However, from the experiments at 1 823 K, no contact angle change was observed in spite of the oxide formation (Fig. 4).…”

Section: Resultsmentioning

confidence: 88%

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Wetting Characteristics of Liquid Fe–19%Cr–10%Ni Alloys on Dense Alumina Substrates

Shin

Park

2008

ISIJ Int.

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Section: Resultsmentioning

confidence: 88%

“…Conse- quently, the work of adhesion just before the oxide formation was probably slightly decreased by the decrease in the surface tension of the metal. 10) In Fig. 5 are shown the macroscopic images of the crosssection of the sample assemblies after 1 753 K experiments.…”

Section: Resultsmentioning

confidence: 99%

Wetting Characteristics of Liquid Fe–19%Cr–10%Ni Alloys on Dense Alumina Substrates

Shin

Park

2008

ISIJ Int.

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“…This is supported by Lee et al, who found that a thermodynamic equilibrium was achieved between solutes of metals (Cr and O) and Cr2O3 in solid solution. 14) Theoretically, the surface tension of a ternary alloy (σ) can be calculated using Butler's equation. (7) where σi, Ai,…”

Section: Discussionmentioning

confidence: 99%

“…13) The experimental results obtained were subsequently compared with theoretically and empirically calculated values 14) to validate a suitable experimental technique to measure the surface tension of SUS430. Figure 1 shows a schematic illustration of the EML facility used in the present study, capable of producing a maximum power and frequency of 12 kW and 210 kHz, respectively.…”

Section: Introductionmentioning

confidence: 99%

Surface Tension Measurements of 430 Stainless Steel

et al. 2014

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The surface tension of 430 stainless steel was measured using an electromagnetic levitation (EML) method at temperatures of 1 707-2 000 K, under a 5 vol% H2-He atmosphere. For comparison, the surface tension was also measured using a constrained drop method; specifically the advanced sessile drop method. At 1 823 K, the surface tension of the 430 stainless steel was estimated from the electromagnetic levitation and the constrained drop methods to be 1.802 and 1.614 N/m, respectively. A subsequent analysis of oxygen content showed that the former contained ~7 ppm oxygen, whereas the latter had 60 ppm. It was therefore considered that the observed difference in measurements was the result of a contamination by oxygen. Furthermore, the EML experimental results were found to be close to the theoretically calculated values for the Fe-Cr-Si system. Consequently, for complex multi-component commercial steels such as the 430 stainless steel, the levitation method is recommended for the measurement of surface tension.

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“…10) The sessile drop method was employed generally to determine the surface tension of molten metal. 11,12) Kapilashrami et al 13) and Kang et al 14) studied the wetting characteristics of molten iron on mullite by sessile drop technique. Valdez et al 15,16) measured the undercooling of a pure iron sessile droplet in contact with Al 2 O 3 , ZrO 2 and MgO substrates under controlled oxygen partial pressures by observing droplet recalescence.…”

Section: Introductionmentioning

confidence: 99%