| Fe基合金连续冷却相变的分子动力学模拟 |
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| 引用本文： | 叶倩,赵世金.Fe基合金连续冷却相变的分子动力学模拟[J].上海金属,2012,34(3):9-12. |
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| 作者姓名： | 叶倩 赵世金 |
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| 作者单位： | 上海大学微结构重点实验室,上海,200072 |
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| 基金项目： | 国家自然科学基金重点项目，上海市科委项目，上海市教委创新项目，曙光计划项目 |
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| 摘 要： | 采用分子动力学模拟了Fe99Cu1合金在1×1014 K/s冷速下从fcc奥氏体结构转变为bcc铁素体结构的相变过程.结果表明,Fe99 Cu1合金在900～800℃之间开始发生相变,600 ℃时相变明显,100℃时55％的原子转变为bcc结构.Cu元素阻碍合金相变,并且促进bcc孪晶形成.
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| 关 键 词： | 分子动力学模拟 相变 连续冷却 Fe基合金 |
MOLECULAR DYNAMICS SIMULATION OF THE PHASE TRANSFORMATION OF CONTINUOUSLY COOLED FERROUS ALLOY |
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| Ye Qian
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Zhao Shijin.MOLECULAR DYNAMICS SIMULATION OF THE PHASE TRANSFORMATION OF CONTINUOUSLY COOLED FERROUS ALLOY[J].Shanghai Metals,2012,34(3):9-12. |
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| Authors: | Ye Qian Zhao Shijin |
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| Affiliation: | Ye Qian Zhao Shijin(The Key Laboratory for Advanced Micro-Analysis,Shanghai University,Shanghai 200072,China) |
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| Abstract: | Molecular dynamics(MD) simulation was used to study the phase transformation from fcc austenite to bcc ferrite of Fe99Cu1 alloy continuously cooled at a rate of 1 × 1014 K/s.The results showed that the start temperature of the phase transformation located between 900 ℃ and 800℃.The phase transformation was obviously at 600 ℃ and the total amount of bcc atoms was 55% at 100 ℃.Cu atoms precluded the phase transformation from fcc austenite to bcc ferrite and contributedto the formation of bcc twin. |
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| Keywords: | Molecular Dynamics Simulation Phase Transformation Continuous Cooling Ferrous Alloy |
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