第二代高强度钢热镀锌后的纳米表面分析
Nanoscale Surface Analysis on Second Generation Advanced High Strength Steel after Hot Dip Galvanizing
摘要：
第二代先进高强度钢是现代汽车结构件的首选材料，因为它具有出色的最大延伸率和抗拉强度。尽管如此，由于不能应用具有成本效益的热浸镀锌，这种材料仍然缺乏腐蚀保护。锌的可涂覆性不足的原因在于退火过程中锰向表面的偏析和涂覆前锰氧化物的形成。本文采用扫描俄歇电子能谱（SAES）、能量色散X射线能谱（EDX）和聚焦离子束（FIB）等分析方法，在模拟器中研究了热浸镀锌后纳米尺度上的纳米孪晶诱导塑性钢表面氧化物的结构和化学组成。通过这些方法的结合，可以获得详细的化学图像，以更好地了解这种新型钢表面上确切发生的过程以及未来如何促进这种材料系统的电化学保护。
英文摘要：
Second Generation advanced high strength steel is the material of choice for modern automotive structural parts because of its outstanding maximal elongation and tensile strength. Nonetheless there is still a lack of corrosion protection for this material due to the fact that cost efficient hot dip galvanizing can not be applied. The reason for the insufficient coatability with zinc is found in the segregation of manganese to the surface during annealing and the formation of manganese oxides prior coating. This work analyses the structure and chemical composition of the surface oxides on so called nano-TWIP (twinning induced plasticity) steel on the nanoscopic scale after hot dip galvanizing in a simulator with employed analytical methods comprising scanning Auger electron spectroscopy (SAES), energy dispersive x-ray spectroscopy (EDX), and focused ion beam (FIB) for cross section preparation. By the combination of these methods it was possible to obtain detailed chemical images serving a better understanding which processes exactly occur on the surface of this novel kind of steel and how to promote in the future for this material system galvanic protection.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
