Abstract：In order to study the enrichment behavior and interaction of elements in the surface layer of continuous annealing plate, the enriched elements in the surface layer of aluminum killed steel and dual-phase steel continuous annealing plate were characterized and analyzed in detail by scanning electron microscopy, glow discharge optical emission spectrometry, photoelectron spectroscopy and transmission electron microscopy. The results showed that the main enriched elements on the surface of aluminum killed steel continuous annealing plate were O, Mn and Al, while the main enriched elements on the surface of dual-phase steel continuous annealing plate were O, Mn and Si. In-depth analysis along the superficial layer showed that for the dual-phase steel with higher alloying element content, the enrichment was deeper along the superficial layer with depth of about 50 nm. For the aluminum killed steel with relatively low content of alloying elements, the enrichment depth was only about 25 nm. The above analysis showed that, compared with the aluminum killed steel, Si element was preferentially enriched on its surface and oxides of Si was formed at the same time after the addition of Si element in dual-phase steel, leading to the inhibition in the enrichment of Al element and the formation of oxides.
崔桂彬, 鞠新华, 孟杨, 其其格, 严春莲. 连退板浅表层的富集元素表征[J]. 冶金分析, 2022, 42(8): 68-75.
CUI Guibin, JU Xinhua, MENG Yang, QI Qige, YAN Chunlian. Characterization of enriched element in the superficial layer of continuous annealing plate. , 2022, 42(8): 68-75.
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