Effect of nitriding treatment on corrosion behaviour of Co-Cr-Mo alloy in liquid Al

被引：17
|
作者：
Tang, Ning [1 ]
Li, Yunping [1 ]
Koizumi, Yuichiro [1 ]
Chiba, Akihiko [1 ]
机构：
[1] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan
来源：
CORROSION SCIENCE | 2014年 / 78卷
关键词：
Aluminium; Cobalt; SEM; TEM; Interfaces; SURGICAL IMPLANT ALLOY; BETA-MANGANESE; INTERFACIAL REACTIONS; NITROGEN ADDITIONS; CO-29CR-6MO ALLOY; DUPLEX TREATMENT; CASTING TOOLS; MOLTEN AL; SOLID CO; OXIDATION;
D O I：
10.1016/j.corsci.2013.10.004
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Effects of nitriding treatment on the corrosion behaviour of Co-29Cr-6Mo alloy in liquid Al were investigated. Because of the high solubility and high diffusion coefficient of nitrogen in Co, Cr2N and pi phases formed from sample surface into alloy matrix during nitriding at 1273 K; however, the nitride layer was not continuously formed on sample surface even in a prolonged process. The Cr2N showed obviously higher resistance to liquid Al compared to alloy matrix, but owing to its discontinuous distribution, the formed Cr2N did not obviously improve the corrosion resistance of the alloy to liquid Al. Crown Copyright (C) 2013 Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：244 / 250
页数：7
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