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Model of Calculating Activity of Nitrogen and Vanadium in FeCVN Molten Metal

PENG Jun , WANG Shijun , DONG Yuanchi , LIU Lixia , ZHOU Yun , CHEN Erbao

钢铁研究学报(英文版)

The solubility of nitrogen in the FeCVN system was measured at 1 708 K and the model of calculating activity (action concentration) of nitrogen (N) and vanadium (V) was derived according to the phase diagram and the coexistence theory of the metal melt structure. The solubility expression of nitr...

关键词: metal melt;coexistence theory;action concentration;activity

Performance of Low Fluoride Dephosphorization Slag of Hot Metal

LIU Lixia , WANG Shijun , DONG Yuanchi , JIA Xiaohui

钢铁研究学报(英文版)

The purpose of this study is decreasing content of CaF2 in dephosphorization slag. The dephosphorization effects with CaF2 replaced by B2O3 were investigated. The dephosphorization experiments were carried at 1450℃ in air atmosphere. The results show that the melting points and dephosphorization rat...

关键词: Low Fluoride Slag;Hot Metal Pretreatment;Dephosphorization;Phosphate capacity

Thermodynamic Properties of FeCN and FeCBN Melts

CHEN Erbao , WANG Shijun , DONG Yuanchi , WU Baoguo , ZHOU Yun

钢铁研究学报(英文版)

The saturated solubility of carbon and nitrogen in FeCN and FeCBN melts was measured experimentally at 1 485 ℃ to obtain the activity interaction coefficients between components in these melts. A new method was used to treat experimental results. Using thermodynamic derivation and calculation, ...

关键词: FeCN melt;FeCBN melt;FeCB melt;interaction coefficient;thermodynamic property

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