Gaseous nitriding of iron with a nanostructured surface layer
Gaseous nitriding of iron with a nanostructured surface layer
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具有纳米结构表面层的铁的气态氮化
DOI：
10.1016/j.scriptamat.2007.05.017
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发表时间：
2007-09-01
影响因子：
6
通讯作者：
He, J. C.
中科院分区：
文献类型：
--
作者：
Tong, W. P.;Liu, C. Z.;He, J. C.
通过表面机械磨损处理（SMAT）在纯铁板上形成纳米结构表面层。研究发现，在相同的气态氮化条件下（500℃，2小时），SMAT铁样品形成的氮化层是粗晶样品的两倍厚，这归因于氮沿纳米结构铁的晶界快速扩散。 SMAT样品的氮化层表现出高硬度和优异的耐磨性。 (c) 2007 Acta Materialia Inc. 由 Elsevier Ltd 出版。保留所有权利。
A nanostructured surface layer was formed on a pure iron plate by means of surface mechanical attrition treatment (SMAT). It was found that a SMAT iron sample developed a nitrided layer twice as thick as that on a coarse-grained sample under the same gaseous nitriding conditions (500 degrees C for 2 h), which is attributed to the fast diffusion of nitrogen along grain boundaries in the nanostructured iron. The nitrided layer of SMAT sample exhibited a high hardness and an excellent wear resistance. (c) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.