| 铁基非晶合金非晶形成能力的分子动力学模拟 |
| Amorphous Forming Ability of Fe based Alloy by Molecular Dynamics Simulation |
| 投稿时间：2013-09-27 |
| 中文关键词:分子动力学 非晶合金 临界冷速 热力学参数 |
| 英文关键词:molecular dynamic amorphous alloy critical cooling rate thermodynamic parameter |
| 基金项目:国家自然科学基金（11272223） |
|
| 摘要点击次数: 1328 |
| 全文下载次数: 1523 |
| 中文摘要: |
| 采用分子动力学方法，模拟了Fe60Cr20Mo20和Fe50Cr20Mo20M10(M=Ni, W) 铁基非晶合金的形成过程，通过加热至熔融态再淬火的方法计算出了Fe60Cr20Mo20、Fe50Cr20Mo20Ni10和Fe50Cr20Mo20W10三种合金形成非晶的临界冷速及一系列热力学参数。结果表明，三种合金形成非晶的临界冷速分别为15.7 K/ps、3.62 K/ps和1.04 K/ps，四元合金较三元合金形成非晶所需的临界冷速大大降低，而W元素的添加更能提高合金的非晶形成能力。另外，通过热力学参 |
| 英文摘要: |
| The amorphous formation process of Fe60Cr20Mo20 and Fe50Cr20Mo20M10(M=Ni,W) alloys is simulated by molecular dynamic method in this paper. The critical cooling rate of forming to amorphous alloys and a series of thermodynamic parameters of these three kinds of alloys are calculated by the method of heating and quenching. Results show that the critical cooling rate of forming to amorphous alloys of these three kinds of alloys are 15.7 K/ps, 3.62 K/ps and 1.04 K/ps, respectively. The quarternary alloys have lower critical cooling rates of forming to amorphous alloys than the ternary alloys. The addition of W element can improve the amorphous formation ability greatly. In addition, by the analysis of the thermodynamic parameters, Fe50Cr20Mo20W10 alloy has a higher reduced glass transition temperature than the other two kinds of alloys, which shows a better amorphous forming ability. |
| 张光磊,赵媛媛,付华,冯文杰.铁基非晶合金非晶形成能力的分子动力学模拟[J].石家庄铁道大学学报：自然科学版,2014,(3):29-32. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
|
| 关闭 |