Enhancement of corrosion resistance by lamination of Mg film on Zn-55Al-1.6Si-coated steel by physical vapor deposition

Park, Jae‐Hyeok; Hagio, Takeshi; Kamimoto, Yuki; Ichino, Ryoichi; Lee, Myeong-Hoon

doi:10.1016/j.surfcoat.2020.125537

Cited by 8 publications

(6 citation statements)

References 27 publications

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“…Preferential orientation in the [002] crystallographic direction of PVD coating ZnAl5 was also observed by Baker et al [25]. Park et al [26] described the influence of pressure on the crystal growth of PVD Mg thin films. Plane (101) was preferred over plane (002) with increasing pressure.…”

Section: Materials Characterizationmentioning

confidence: 56%

“…Preferential o tion in the [002] crystallographic direction of PVD coating ZnAl5 was also observ Baker et al [25]. Park et al [26] described the influence of pressure on the crystal g of PVD Mg thin films. Plane (101) was preferred over plane (002) with increasing pre Only the presence of the Zn phase (JCPDS card no 04-007-2123) and Fe phase (J card no 04-007-2123) was detected by X-ray diffraction analysis.…”

Section: Materials Characterizationmentioning

confidence: 92%

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Investigation of Liquid Metal Embrittlement during Resistance Spot Welding of Martensitic Steel with Zn Jet Vapor-Deposited Coating

Kučera

Žofková

DiGiovanni

et al. 2021

Metals

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Advanced high-strength steels protected by zinc coatings have contributed to a reduction in CO2 emissions in the automotive industry. However, the liquid metal embrittlement (LME) of the Fe/Zn couple induced by simultaneously acting stresses and high temperatures during resistance spot welding could be the cause of unexpected failure. We investigated the possible risk of LME in spot-welded martensitic steel with Zn jet vapor-deposited coating and its influence on weld strength. The weld nugget cross-sections were analyzed (optical microscopy, SEM-EDS), and their tensile shear strengths were compared with their uncoated counterparts. LME cracks were observed in all samples meeting the process window (6, 6.5, 7 kA) located at the edge of the sheet/electrode indentation area. The frequency and length of cracks increased with current, and the occurrence of Zn within cracks indicated the LME mechanism. The shear tests showed the Zn-coated sample underwent a decrease in tensile shear strength that was most evident at a welding current of 7 kA (13.2%). However, LME was excluded as a cause of lower strength. The decrease was attributed to the smaller nugget diameter and the thin slit of Zn coating remaining in the weld notch.

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Section: Materials Characterizationmentioning

confidence: 56%

Section: Materials Characterizationmentioning

confidence: 92%

Investigation of Liquid Metal Embrittlement during Resistance Spot Welding of Martensitic Steel with Zn Jet Vapor-Deposited Coating

Kučera

Žofková

DiGiovanni

et al. 2021

Metals

View full text Add to dashboard Cite

show abstract

“…The protective coating technology is the most widely used of the many protection strategies. This technology usually uses techniques such as physical vapor deposition, 3,4 anodic oxidation, 5,6 chemical conversion films, 7,8 thermal spraying, 9,10 and micro-arc oxidation 11,12 to form a covering layer on a metal substrate surface to protect the metal by minimizing direct contact between the metal and the corrosive medium. Although these surface treatment techniques are effective in avoiding corrosion of metals, the complexity and high cost of the operation greatly limit the application of these techniques.…”

Section: Introductionmentioning

confidence: 99%

Recent advances of slippery liquid-infused porous surfaces with anti-corrosion

et al. 2023

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“…Nowadays, protective coatings with high corrosion resistance are essential to extend the lifetime of industrial products, especially for those exposed to severe environments. Znbased platings are the most commonly used coatings to improve corrosion resistance of steel products and research has been carried out to improve their corrosion resistance [1]. One of the most widely applied methods to improve the corrosion resistance of Zn electroplating is to form alloys of Zn with iron-group elements, e.g., Fe and Ni [2,3], due to its considerably low cost.…”

Section: Introductionmentioning

confidence: 99%

Amine-Modified Small Pore Mesoporous Silica as Potential Adsorbent for Zn Removal from Plating Wastewater

et al. 2022

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The removal of Zn from wastewater generated from the Zn-based electroplating manufacturing process is essential because the regulation limit of Zn concentration in wastewater is becoming stricter in Japan. However, achieving this through conventional methods is difficult, especially for small and medium enterprises in the plating industry. Therefore, a suitable Zn-removal method with a low cost but high performance and Zn selectivity is required. The application of adsorbents is one possible solution. Mesoporous silica (MS) is a well-known adsorbent with controllable pore size, high specific surface area (SSA), high acid resistance, and ease of surface modification. In this study, we modified the surfaces of MSs with different initial pore sizes by amino groups and investigated their Zn removal performances. The effect of pore size on amine modification using (3-aminopropyl)triethoxysilane and on adsorption performance in a single system was investigated along with Zn adsorption selectivity in the Zn–Ni binary system. Amine-modified MS prepared from MS with an initial pore size of 1.9 nm showed drastically lower performance compared to those prepared from MS with an initial pore size larger than 2.8 nm. Zn-selectivity in the Zn–Ni binary system, containing equal amounts of Zn and Ni, was found to reach a maximum of 21.6 when modifying MS with an initial pore size of 2.8 nm.

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Enhancement of corrosion resistance by lamination of Mg film on Zn-55Al-1.6Si-coated steel by physical vapor deposition

Cited by 8 publications

References 27 publications

Investigation of Liquid Metal Embrittlement during Resistance Spot Welding of Martensitic Steel with Zn Jet Vapor-Deposited Coating

Investigation of Liquid Metal Embrittlement during Resistance Spot Welding of Martensitic Steel with Zn Jet Vapor-Deposited Coating

Recent advances of slippery liquid-infused porous surfaces with anti-corrosion

Amine-Modified Small Pore Mesoporous Silica as Potential Adsorbent for Zn Removal from Plating Wastewater

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