440 MPa高强IF钢镀锌层中抑制层的组织结构及生长机理

中国腐蚀与防护学报

2013, Vol. 33

Issue (3): 188-192

本期目录 | 过刊浏览

440 MPa高强IF钢镀锌层中抑制层的组织结构及生长机理

陈斌锴陈庆舍仲海峰郝晓东江社明张启富

新冶高科技集团有限公司先进金属材料涂镀国家工程实验室北京 100081

Microstructure and Growth Mechanism of Inhibition Layer in Galvanized Coating on 440 MPa High Strength Steel

CHEN Binkai, CHEN Qingshe, ZHONG Haifeng, HAO Xiaodong, JIANG Sheming, ZHANG Qifu

New Metallurgy High-Tech Group Co., Ltd., National Engineering Lab of Advanced Coating Technology for Metal Material, Beijing 100081, China

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摘要: 利用场发射环境扫描电子显微镜（FE-ESEM）和透射电子显微镜（TEM）对440 MPa IF-HS钢镀锌层中的抑制层进行了组织结构研究。结果表明：抑制层由两相组成，一部分为细小的FeAl₃相，其单独成层或位于粗大晶粒底层；另一部分为粗大Fe₂Al₅相位于抑制层的表层。抑制层的生长机理研究表明，FeAl₃相首先在钢基体表面形成，Fe₂Al₅相通过消耗FeAl₃相生长。

关键词 ：抑制层, 组织结构, 生长机理

Abstract：The microstructure of inhibition layer in galvanized coating on 440 MPa IF-HS Steel was studied by field emission environmental scanning electron microscope (FE-ESEM) and transmission electron microscope (TEM). The results showed that the inhibition layer is composed of two phases. The one is fine FeAl₃ phase, which exists as single layer on the steel substrate and underneath the coarse grains. And the another is coarse Fe₂Al₅, which exists on the surface of the inhibition layer. The growth mechanism of inhibition layer showed that FeAl₃ phase is the first forms preferentially on the steel substrate, and Fe₂Al₅ grows is through the consumption of FeAl₃ phase.

Key words： inhibition layer microstructure growth mechanism

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陈斌锴陈庆舍仲海峰郝晓东江社明张启富. 440 MPa高强IF钢镀锌层中抑制层的组织结构及生长机理[J]. 中国腐蚀与防护学报, 2013, 33(3): 188-192.
. Microstructure and Growth Mechanism of Inhibition Layer in Galvanized Coating on 440 MPa High Strength Steel. Journal of Chinese Society for Corrosion and protection, 2013, 33(3): 188-192.

链接本文:

https://www.jcscp.org/CN/ 或 https://www.jcscp.org/CN/Y2013/V33/I3/188

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[1]	陈斌锴仲海峰张启富. 锌液中Al含量对440 MPa级高强IF钢镀层的组织结构及抑制层的影响[J]. 中国腐蚀与防护学报, 2013, 33(2): 171-174.

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