| 以改进的“中心原子”模型计算Ag—Cu相图 |
| |
| 引用本文： | 张迎九,王志法,吕维洁,许桢,姜国圣.以改进的“中心原子”模型计算Ag—Cu相图[J].金属学报,1998,34(3):293-298. |
| |
| 作者姓名： | 张迎九 王志法 吕维洁 许桢 姜国圣 |
| |
| 作者单位： | 中南工业大学材料科学与工程系!长沙，410083(张迎九，王志法，吕维洁，许桢)，中南工业大学材料科学与工程系!长沙410083(姜国圣) |
| |
| 摘 要： | 简化并推导了“中心原子”模型公式，使其在形式和参数意义上更接近普通热力学计算相图公式。在新模型中，Ａ－Ｂ二元系合金第ｉ个原子态Φ＾αｉ状态量与组态Φ＾α０的状态量之差（φ＾αｉ－φ＾α０）不必与（φ＾α１－φ＾φ０）成正比（ｉ表示α原子周转最近邻有ｉ个Ｂ原子），而各原子态Φ＾αｉ在合金中存在的几率之和Ｐα等于α组元在合金中活度系数的倒数。采用修改后的“中心原子”模型公式计算Ａｇ－Ｃｕ相图及热力学性
|
| 关 键 词： | 中心原子模型 相图计算 银铜合金 相图 |
| 收稿时间： | 1998-03-18 |
| 修稿时间： | 1998-03-18 |
CALCULATION OF Ag-Cu DIAGRAM FROM MODIFIED CENTRAL ATOMS MODEL |
| |
| ZHANG Yingjiu,WANG Zhifa,LU Weijie,XU Zhen,JIANG Guosheng.CALCULATION OF Ag-Cu DIAGRAM FROM MODIFIED CENTRAL ATOMS MODEL[J].Acta Metallurgica Sinica,1998,34(3):293-298. |
| |
| Authors: | ZHANG Yingjiu WANG Zhifa LU Weijie XU Zhen JIANG Guosheng |
| |
| Affiliation: | ZHANG Yingjiu,WANG Zhifa,LU Weijie,XU Zhen,JIANG Guosheng(Department of Materials Science and Engineering,Central South University of Technology,Changsha ) |
| |
| Abstract: | The equations of the central atoms (CA) model are simplified and derivatived in this paper. The new equations are similiar to the equations of ordinary thermodynamic models used usually, the static value difference between the i atomic state and is not need in proportion to, where i denoted there are i atoms B in the nearest neibouring shell of central atom or. The total of the probability of every atomic state, Pa equals to the reciprocal of activity coefficient of component a. The Ag-Cu diagram and its thermodynamic properties are calculated by this model, and the results coincide well with experimental values. |
| |
| Keywords: | Ag-Cu diagram calculation central atoms model |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《金属学报》浏览原始摘要信息 |
|
点击此处可从《金属学报》下载全文 |
|
