Effect of refining grain size on the corrosion behavior of Cr(III) conversion layers on zinc coatings

Guozhe Meng; Lei Zhang; Yawei Shao; Tao Zhang; Fuhui Wang; Chaofang Dong; Xiaogang Li

doi:10.1016/j.scriptamat.2009.08.004

Effect of refining grain size on the corrosion behavior of Cr(III) conversion layers on zinc coatings

Guozhe Meng^*
, Lei Zhang
, Yawei Shao
, Tao Zhang
, Fuhui Wang
, Chaofang Dong
, Xiaogang Li

^*Corresponding author for this work

Harbin Engineering University
CAS - Institute of Metal Research
Harbin Aircraft Industry Group Company Limited
University of Science and Technology Beijing

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

Cr(III) conversion layers were synthesized on the nanocrystalline zinc with two grain sizes, 22 nm and 40 nm. Their corrosion behaviors were examined by potentiodynamic polarization and electrochemical impedance spectroscopy. The results shows that a more uniform and none-micro-crack conversion layer is formed on sample with grain size 22 nm compared with that formed on the sample with grain size 40 nm. Refining the grain size can markedly enhance the corrosion resistance of trivalent chromium conversion layer.

Original language	English
Pages (from-to)	1004-1007
Number of pages	4
Journal	Scripta Materialia
Volume	61
Issue number	11
DOIs	https://doi.org/10.1016/j.scriptamat.2009.08.004
State	Published - Dec 2009
Externally published	Yes

Keywords

Conversion layer
Corrosion
Electroplating
Nanocrystalline zinc

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10.1016/j.scriptamat.2009.08.004

Cite this

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title = "Effect of refining grain size on the corrosion behavior of Cr(III) conversion layers on zinc coatings",

abstract = "Cr(III) conversion layers were synthesized on the nanocrystalline zinc with two grain sizes, 22 nm and 40 nm. Their corrosion behaviors were examined by potentiodynamic polarization and electrochemical impedance spectroscopy. The results shows that a more uniform and none-micro-crack conversion layer is formed on sample with grain size 22 nm compared with that formed on the sample with grain size 40 nm. Refining the grain size can markedly enhance the corrosion resistance of trivalent chromium conversion layer.",

keywords = "Conversion layer, Corrosion, Electroplating, Nanocrystalline zinc",

author = "Guozhe Meng and Lei Zhang and Yawei Shao and Tao Zhang and Fuhui Wang and Chaofang Dong and Xiaogang Li",

year = "2009",

month = dec,

doi = "10.1016/j.scriptamat.2009.08.004",

language = "英语",

volume = "61",

pages = "1004--1007",

journal = "Scripta Materialia",

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TY - JOUR

T1 - Effect of refining grain size on the corrosion behavior of Cr(III) conversion layers on zinc coatings

AU - Meng, Guozhe

AU - Zhang, Lei

AU - Shao, Yawei

AU - Zhang, Tao

AU - Wang, Fuhui

AU - Dong, Chaofang

AU - Li, Xiaogang

PY - 2009/12

Y1 - 2009/12

N2 - Cr(III) conversion layers were synthesized on the nanocrystalline zinc with two grain sizes, 22 nm and 40 nm. Their corrosion behaviors were examined by potentiodynamic polarization and electrochemical impedance spectroscopy. The results shows that a more uniform and none-micro-crack conversion layer is formed on sample with grain size 22 nm compared with that formed on the sample with grain size 40 nm. Refining the grain size can markedly enhance the corrosion resistance of trivalent chromium conversion layer.

AB - Cr(III) conversion layers were synthesized on the nanocrystalline zinc with two grain sizes, 22 nm and 40 nm. Their corrosion behaviors were examined by potentiodynamic polarization and electrochemical impedance spectroscopy. The results shows that a more uniform and none-micro-crack conversion layer is formed on sample with grain size 22 nm compared with that formed on the sample with grain size 40 nm. Refining the grain size can markedly enhance the corrosion resistance of trivalent chromium conversion layer.

KW - Conversion layer

KW - Corrosion

KW - Electroplating

KW - Nanocrystalline zinc

UR - https://www.scopus.com/pages/publications/70349439130

U2 - 10.1016/j.scriptamat.2009.08.004

DO - 10.1016/j.scriptamat.2009.08.004

M3 - 文章

AN - SCOPUS:70349439130

SN - 1359-6462

VL - 61

SP - 1004

EP - 1007

JO - Scripta Materialia

JF - Scripta Materialia

IS - 11

ER -

Effect of refining grain size on the corrosion behavior of Cr(III) conversion layers on zinc coatings

Abstract

Keywords

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