Inclusion Behavior During the Electron Beam Button Melting Test

Bellot, Jean‐Pierre; Defay, B.; Jourdan, Julien; Chapelle, Pierre; Jardy, Alain

doi:10.1007/s11665-012-0153-z

Cited by 9 publications

(3 citation statements)

References 13 publications

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“…These experiment results all show that the EBCHM has a superior effect of inclusion removal. Bellot et al [45] studied the migrating behavior of inclusions in the electron beam melting of a nickel-based alloy button. The results show that the factors affecting migration are mainly natural convection and Marangoni force.…”

Section: Migrating Of Inclusions In Ebchm Processmentioning

confidence: 99%

Inclusions in melting process of titanium and titanium alloys

et al. 2019

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This paper summarizes melting methods of titanium and titanium alloy, such as vacuum arc melting (VAR) and electron beam cold hearth melting (EBCHM), and the related inclusions formed when using these melting methods. Low-density inclusions are resulted from contamination of air, and high-density inclusions are caused by refractory elements. The formation process of inclusions was analysed. The removal mechanism of different kinds of inclusions was specified. Low-density inclusions are removed mainly by resolving. This is a comprehensive process containing reaction diffusion. The resolving rate of high-density inclusions is so low that these inclusions are mainly removed by sedimentation. The experiments and physical models of inclusions are detailed. In various melting methods, vacuum arc melting is prominent. However, this method cannot remove inclusions effectively, which usually results in repeat melting. Electron beam cold hearth melting has the best ability of removing inclusions. These results can provide instructions to researchers of titanium and titanium alloys.

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Section: Migrating Of Inclusions In Ebchm Processmentioning

confidence: 99%

Inclusions in melting process of titanium and titanium alloys

et al. 2019

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“…To prevent contamination due to with lowdensity in the ingot, these inclusions need to be dissolved in the titanium alloy melt before casting. Therefore, many studies [1][2][3][4][5][6][7][8][9] on the dissolution rate of low-density inclusions in titanium alloy melt have been conducted. It is necessary to understand the dissolution behaviors of the titanium sponge.…”

Section: Introductionmentioning

confidence: 99%

Dissolution Behavior of a Titanium Nitride Sponge in Titanium Alloy Melt

2020

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The dissolution behaviors of titanium nitride titanium sponges in titanium alloy melt were examined. A titanium nitride sponge was produced using nitrogen gas. The titanium nitride sponge featured a porous structure. Porous structures at both the surface layer and inside were formed at intervals of about 5.0 × 10-5 m. When the titanium nitride sponge was immersed into a titanium alloy melt, the melt permeated into the pores. The dissolution rate of the titanium nitride sponge in the titanium alloy melt depends on the temperature of the melt. Higher melt temperatures corresponded to higher dissolution rates. However, the concentration of nitrogen in the titanium nitride sponge had no influence on the dissolution rate. Dissolution model of the titanium nitride sponge into the titanium alloy melt were proposed. These models considered the structure of the sponge; thus, the behavior of the dissolution sponges was predicted and confirmed.

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“…To prevent contamination due to with low-density in the ingot, these inclusions need to be dissolved in the titanium alloy melt before casting. Therefore, many studies [1][2][3][4][5][6][7][8][9] on the dissolution rate of low-density inclusions in titanium alloy melt have been conducted. It is necessary to understand the nitriding and dissolution behaviors of the titanium sponge.…”

Section: Introductionmentioning

confidence: 99%