奥氏体Fe-Cr-Ni合金体系在12.5 mol%Cr下由内渗向快速渗的速率机制转变

Journal of Advanced Science Pub Date : 2020-01-01 DOI:10.2978/jsas.32107

K. Gemma, M. Sato, Masae Kanda, Ryota Gemma, Kaoru Hoshino, Jun-ichi Kawano

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摘要

采用基于合金中Cr原子排列的Cr骨架模型，研究了奥氏体Fe-Cr-Ni合金体系从12.5 mol% Cr的内氮化到快速氮化的转变。在12.5 mol% Cr以上的合金中发现了快速氮化现象。快速氮化动力学仅在合金中25.0 mol% Cr的局部空间进行。动力学是作为热力学系统中的一种激光来讨论的。

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Transition of rate mechanism from internal nitriding to rapid nitriding mechanism at 12.5 mol%Cr in austenitic Fe-Cr-Ni alloy system

Transition from internal nitriding to rapid nitriding at 12.5 mol% Cr in austenitic Fe-Cr-Ni alloy system is investigated from a Cr skeleton model based on atomic arrangement of Cr atoms in the alloys. The rapid nitriding is observed above the 12.5 mol% Cr of alloys. Kinetics of the rapid nitriding is only performed at local space of 25.0 mol% Cr in the alloys. The kinetics is discussed as a kind of lasering in thermodynamic system.

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Journal of Advanced Science

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