2019年7月15日 · In this work, the impact of multiphase microstructure of ZnAlMg coatings on the homogeneity of the surface activation and the surface covering by phosphate conversion coating (PCC) was studied via XPS and SEM surface characterization of model coatings and pure phases at different steps of the treatment.

2023年10月20日 · The compounds on the surface of the ZnAlMg coating were studied by X-ray photoelectron spectroscopy (XPS). The results suggest that much more oxides containing not magnesium but aluminium could...

2022年5月1日 · To assess the relevance of ZnAlMg coatings in current manufacturing processes such as hot stamping and welding of advanced high strength steels (AHSS), it is essential to understand their high-temperature performance, particularly their resistance to liquid metal embrittlement (LME) cracking.

2019年1月30日 · To replace Zn coatings for steel by ZnAlMg in painted applications, it is necessary to optimize conversion coatings (CC) ensuring paint adherence and corrosion resistance. While on Zn-coated...

ZnAlMg coatings and pure phases in the activator bath were studied by X-ray Photoelectron Spectroscopy (XPS). The XPS spectrometer (K Alpha, Thermo Fisher Scientific, base

To be applied on car body, surface quality of the ZnAlMg coating sheet should be improved to meet requirement of painting. However, the surface of the ZnAlMg coating tends to darken when...

采用扫描电子显微镜(SEM)研究了在加热前后ZnAlMg镀层表面与截面的微观组织变化，使用X射线衍射仪(XRD)分析了热处理前后镀层的物相差异，使用电化学技术和中性盐雾实验评价了镀层的耐蚀性。

The PhD aimed at understanding this difference, especially the role of the ZnAlMg microstructure and to propose a solution improving TiCC performances. Using SEM-EDS, XPS and nano-AES, it was demonstrated, at different steps of CC procedure, that PCC is homogeneously distributed on ZnAlMg and pure phases, while TiCC better covers eutectic ...

2024年4月15日 · Zn-Al-Mg coatings offer superior resistance to cut-edge corrosion. This research aims to unravel the self-healing properties observed in these coatings. Through cyclic corrosion tests (CCTs), we compared the corrosion resistance of Zn-Al …

The effect of different composition ratio of ZnAlMg coatings on the corrosion resistance of dual phase steel sheet was experimental studied. The results of neutral salt spray test and corrosion products analysis showed that the three kinds of ZnAlMg …