Iron self diffusion in liquid pure iron and iron-carbon alloys

Iron self diffusion in liquid pure iron and iron-carbon alloys
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铁在液态纯铁和铁碳合金中的自扩散

DOI:
10.1088/1361-648x/ab2855
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发表时间:
2019
期刊:
Journal of Physics: Condensed Matter
影响因子:
--
通讯作者:
T. Unruh
T. Unruh
中科院分区:
--
文献类型:
--
作者:
A. Meyer;Levin Hennig;F. Kargl;T. Unruh

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用非相干准弹性中子散射方法测量了纯铁、含碳8.7at%和16.9at%的铁碳合金的中子自扩散系数。液态铁的熔点为m2 s−1。对于接近共晶的Fe83.1C16.9成分,在T K时m2 s−1。从示踪剂扩散实验的文献值得出的结论相矛盾的添加碳对铁的流动性只有很小的影响:在给定的温度下,在Fe 83.1C16.9中的自扩散系数仅比在液态铁中大10%,尽管混合对液相线温度和相行为有剧烈的影响。
With incoherent quasielastic neutron scattering self-diffusion coefficients in pure iron, and iron-carbon alloys containing 8.7 at% and 16.9 at% carbon have been measured. At the melting point in liquid iron is m2 s−1. For the close-to-eutectic Fe83.1C16.9 composition m2 s−1 at T K. Contradicting conclusions drawn from literature values of tracer diffusion experiments the addition of carbon has only a minor effect on the iron mobility: at a given temperature the self-diffusion coefficient in Fe83.1C16.9 is only 10% larger than in liquid iron, although mixing has a drastic effect on liquidus temperature and phase behavior.
玻璃形成 ZrTiNiCuBe 液体中的耦合弛豫过程
DOI: 10.1209/0295-5075/107/26001
发表时间: 2014
期刊: Europhysics Letters
影响因子: --
作者:
F. Yang;T. Unruh;A. Meyer
通讯作者: A. Meyer