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Effect of Si addition on the electrochemical corrosion and passivation behavior of Fe-Cr-Mo-C-B-Ni-P metallic glasses
Zheng, Shuang; Li, Jiawei; Zhang, Jijun; Jiang, Kemin; Liu, Xincai; Chang, Chuntao; Wang, Xinmin
2018
发表期刊JOURNAL OF NON-CRYSTALLINE SOLIDS
卷号493页码:33-40
摘要Fe-Cr-based metallic glasses (MGs) have attracted extensive attention for industrial applications due to corrosion resistance that is superior to that of their crystalline counterparts. In this work, the effect of Si concentration on the electrochemical corrosion and passivation behavior of Fe43Cr15Mo14C10-x B5Ni3P10Six (x = 0, 2, 4, 6 at.%) MGs in a 3.5 wt% NaCI solution has been investigated by performing potentiodynamic polarization measurements, electrochemical impedance spectroscopy, cathodic polarization, the Mott-Schottky approach, and X-ray photoelectron spectroscopy (XPS). The addition of a small amount of Si (5.4 at.%) is found to have a beneficial effect on improving the thermal stability and corrosion resistance for this Fe-Cr-based MG system. However, higher Si amounts deteriorate the thermal stability due to precipitation of a (Fe, Cr, Mo)(23)(C,B)(6) phase. Also, all electrochemical measurements show that 4 at.% Si is high enough to improve the passivity stability of the system, whereas higher amounts of Si do not significantly improve the corrosion behavior. The improved passivation ability and corrosion resistance of the Si-doped MGs can be attributed to the formation of a dense and stable passive film rich in Si-and Cr-oxides.
关键词Amorphous-alloys Supercooled Liquid Fuel-cell Resistance Iron Chromium Element Model Al
学科领域Engineering ; Materials Science
语种英语
文献类型期刊论文
条目标识符http://ir.nimte.ac.cn/handle/174433/17292
专题2018专题
推荐引用方式
GB/T 7714
Zheng, Shuang,Li, Jiawei,Zhang, Jijun,et al. Effect of Si addition on the electrochemical corrosion and passivation behavior of Fe-Cr-Mo-C-B-Ni-P metallic glasses[J]. JOURNAL OF NON-CRYSTALLINE SOLIDS,2018,493:33-40.
APA Zheng, Shuang.,Li, Jiawei.,Zhang, Jijun.,Jiang, Kemin.,Liu, Xincai.,...&Wang, Xinmin.(2018).Effect of Si addition on the electrochemical corrosion and passivation behavior of Fe-Cr-Mo-C-B-Ni-P metallic glasses.JOURNAL OF NON-CRYSTALLINE SOLIDS,493,33-40.
MLA Zheng, Shuang,et al."Effect of Si addition on the electrochemical corrosion and passivation behavior of Fe-Cr-Mo-C-B-Ni-P metallic glasses".JOURNAL OF NON-CRYSTALLINE SOLIDS 493(2018):33-40.
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