Plasma nitridation of a novel Ni-10.8 wt.%Cr nanocomposite
文献类型：期刊论文
| 作者 | J. Zhao ; X. Peng ; Y. Wang ; F. Wang |
| 刊名 | Acta Materialia
 |
| 出版日期 | 2007 |
| 卷号 | 55期号:9页码:3193-3201 |
| 关键词 | Ni-Cr nanocomposite nanocrystalline electrodeposition plasma nitriding nanohardness internal nitridation nitriding behavior alloys nickel ni oxidation temperatures diffusion metals film |
| ISSN号 | 1359-6454 |
| 中文摘要 | A Ni-10.8Cr nanocomposite (by wt.%), consisting of nanocrystalline Ni matrix (mean grain size: 60 nm) and dispersed Cr nanoparticles (mean particle size: 42 nm), has been synthesized by nanocomposite electrodeposition. The unique structure causes the nanocomposite to form a double-layered nitrided zone during plasma nitridation Lit 560 degrees C for 10 h. The outer layer (similar to 50 pro thick) precipitates nanometer-sized CrN (< 100 nm), which increased in size but decreased in number with increasing nitridation depth (following Bohm-Kahlweit's mode). The inner layer (similar to 5 pin thick) exhibits larger-coarsened nitride precipitates (100-200 nm) which almost link together. The greatly enhanced nitriding kinetics in the nanocomposite compared to a compositionally similar but microstructurally different Ni-10Cr alloy (mean grain size: 30 km) is mainly associated with the fact that the numerous grain boundaries dramatically increase the nitrogen permeability, according to the treatment using a classical Wagner's approach. The nanohardness profile in relation to the microstructure of the nitrided zone in the nanocomposite has also been investigated. (c) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/34067]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | J. Zhao,X. Peng,Y. Wang,et al. Plasma nitridation of a novel Ni-10.8 wt.%Cr nanocomposite[J]. Acta Materialia,2007,55(9):3193-3201. |
| APA | J. Zhao,X. Peng,Y. Wang,&F. Wang.(2007).Plasma nitridation of a novel Ni-10.8 wt.%Cr nanocomposite.Acta Materialia,55(9),3193-3201. |
| MLA | J. Zhao,et al."Plasma nitridation of a novel Ni-10.8 wt.%Cr nanocomposite".Acta Materialia 55.9(2007):3193-3201. |
入库方式： OAI收割
来源：金属研究所
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