Dissolution equilibrium of Bi vapor and activities of Bi in liquid Ni-Cr-Fe-Nb solutions
文献类型：期刊论文
| 作者 | Li, XL; Yang, YQ; Chen, B; Xing, WW; Li, X; Liu, K |
| 刊名 | VACUUM
 |
| 出版日期 | 2018-10-01 |
| 卷号 | 156页码:271-276 |
| 关键词 | Ni-Cr-Fe-Nb alloys Partial vapor pressure of Bi Activities Activity coeffcients Standard free energy of reaction Delta G(0) |
| ISSN号 | 0042-207X |
| DOI | 10.1016/j.vacuum.2018.07.047 |
| 英文摘要 | The vapor pressure and the activity coefficients of minor elements at infinite dilution in liquid Ni-Cr-Fe-Nb alloys are a necessary and important basic property that is required to analyze the behavior of trace elements during metallurgical production process. The carrier gas method has been applied in this study of the dissolution equilibrium of Bi vapor pressures over liquid Ni-Cr-Fe-Nb alloys from 1723 K to 1823K and then the activities as well as the activity coefficients of Bi in liquid Ni-Cr-Fe-Nb alloys were calculated from the results. It is found that Bi shows strong negative deviation from Henrys Law, and the relationship between the standard free energy of dissolution reaction Bi(g) = [Bi](Ni-Cr-Pe-Nb) and temperature is Delta G(0) = A + BT, where A is - 163058 J/mol and B is 52.6 J/(mol.K). At 1773 K and 1873K, the activity coefficients gamma of bismuth at infinite dilution is 0.442 and 0.253, respectively. Under the condition of conventional vacuum melting, the volatile lower limit of Bi can be up to 0.22 ppm, which was calculated by using thermodynamic data mentioned above. |
| 学科主题 | Materials Science, Multidisciplinary ; Physics, Applied |
| 语种 | 英语 |
| WOS记录号 | WOS:000445980600036 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/79925]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 作者单位 | 1.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, XL,Yang, YQ,Chen, B,et al. Dissolution equilibrium of Bi vapor and activities of Bi in liquid Ni-Cr-Fe-Nb solutions[J]. VACUUM,2018,156:271-276. |
| APA | Li, XL,Yang, YQ,Chen, B,Xing, WW,Li, X,&Liu, K.(2018).Dissolution equilibrium of Bi vapor and activities of Bi in liquid Ni-Cr-Fe-Nb solutions.VACUUM,156,271-276. |
| MLA | Li, XL,et al."Dissolution equilibrium of Bi vapor and activities of Bi in liquid Ni-Cr-Fe-Nb solutions".VACUUM 156(2018):271-276. |
入库方式： OAI收割
来源：金属研究所
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