The inhibition of MnO on Fe2Al5Znx growth and associated three-dimensional nested phase distribution in the galvanized coating of high-Al low-Si dual phase steel

被引：4

作者：

Liang, Jian ^{[1
]}

Miao, Bin ^{[1
]}

Xiong, Ziliu ^{[2
]}

Zhang, Lingling ^{[3
]}

Su, Huhu ^{[3
]}

Shen, Chunguang ^{[1
]}

Wang, Fucheng ^{[3
]}

Wang, Jing ^{[1
]}

Kuang, Shuang ^{[4
]}

Zheng, Shijian ^{[1
]}

机构：

[1] Hebei Univ Technol, Sch Mat Sci & Engn, Tianjin Key Lab Mat Laminating Fabricat & Interfac, Tianjin 300401, Peoples R China

[2] HBIS Grp, HBIS Mat Technol Res Inst, Shijiazhuang 050023, Hebei Province, Peoples R China

[3] Hebei Univ Technol, Sch Mat Sci & Engn, State Key Lab Reliabil & Intelligence Elect Equipm, Tianjin 300401, Peoples R China

[4] Technol Res Ctr, HBIS Tang Steel, Tang Shan 063016, Hebei Province, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2023年 / 614卷

基金：

中国国家自然科学基金;

关键词：

High-Al low-Si dual phase steel; Transmission electron microscopy; Fe2Al5Znx phase; Interfacial layer; Galvanized coating; SELECTIVE OXIDATION; CRYSTAL-STRUCTURE; LAYER FORMATION; DEW-POINT; HOT; MICROSTRUCTURE; BEHAVIOR; IRON; REFINEMENT; MORPHOLOGY;

D O I：

10.1016/j.apsusc.2022.156153

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Continuous hot-dip galvanizing is an important process for dual phase (DP) steel and other advanced highstrength steels (AHSSs). During this process, the formation of a Fe-Al inhibition layer and the selective oxidation of alloying elements will change the interfacial layer structure, and affect the galvanized coating structure. So far, the interfacial layer structure and its relationship with galvanized coating in high-Al low-Si DP steel are still unclear. In this paper, the interfacial layer and galvanized coating of hot-dip galvanized high-Al low-Si DP steel were characterized by electron microscopy. The results showed that there exists abundant nano-size MnO phases and Fe2Al5Znx phases inside the interfacial layer, and the galvanized coating consists of Fe3Zn10 nanophases and eta-Zn phase. The competitive relationship between those interfacial phases strongly affects the phase distribution inside the galvanized coating adjacent to the interfacial layer. The MnO phases in the interfacial layer hinder the nucleation and growth of Fe2Al5Znx phases. As a result, the inhibition of the Fe-Zn reaction is weakened and the final galvanized coating exhibited a three-dimensional nested distribution of coexistence of Fe3Zn10 nanophases and eta-Zn phase.

引用

页数：10

共 5 条

[1] Microstructure and mechanical property relationship in an ultrahigh strength 980 MPa grade high-Al low-Si dual phase steel
Zhang, J. C.
Di, H. S.
Deng, Y. G.
Li, S. C.
Misra, R. D. K.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2015, 645 : 232 - 240
[2] Influence of Dew Point on the Selective Oxidation, Microstructure and Mechanical Properties of a High-Al Low-Si Dual Phase Steel during Hot-Dip Galvanizing Process
Yonggang Deng
Hongshuang Di
R. D. K. Misra
Protection of Metals and Physical Chemistry of Surfaces, 2018, 54 : 496 - 502
[3] Influence of Dew Point on the Selective Oxidation, Microstructure and Mechanical Properties of a High-Al Low-Si Dual Phase Steel during Hot-Dip Galvanizing Process
Deng, Yonggang
Di, Hongshuang
Misra, R. D. K.
PROTECTION OF METALS AND PHYSICAL CHEMISTRY OF SURFACES, 2018, 54 (03) : 496 - 502
[4] Microstructure and mechanical property in a high strength high-Al-low-Si hot-dip galvanized dual phase steel
Deng, Yonggang
Di, Hongshuang
Hu, Meiyuan
Zhang, Jiecen
Misra, R. D. K.
METALLURGICAL RESEARCH & TECHNOLOGY, 2017, 114 (02)
[5] Formation Mechanism of High-MnO-Content SiO2/SiO2-MnO-(CaO-Al2O3) Dual-Phase Inclusions in Si-Mn-Killed Steel
Zhao, Jiaqi
Wang, Min
Cai, Xiaofeng
Jiang, Haitao
Ma, Han
Bao, Yanping
STEEL RESEARCH INTERNATIONAL, 2024, 95 (01)

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