An advanced surface modification processing design has been developed to improve the corrosion resistance of magnesium (Mg) samples via x-ray irradiation in humid air. OH· radicals generated by water ionization during x-ray irradiation reacted with natural oxide films mainly consisting of Mg(OH)2, which resulted in the formation of an approximately 50-nm-thick magnesium oxide (MgO) dense surface film as a protection layer against corrosion. After x-ray irradiation for 24 h, pure Mg and its alloy (AZ91D) specimens underwent the saltwater immersion test and exhibited a remarkable reduction in corrosion rate (80-85%). They were also compared to as-received samples after polishing treatment. This surface modification process is environmentally friendly because it does not release any hazardous materials because of the high recycling ability.

中文翻译：

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通过 X 射线辐照了解镁表面的腐蚀行为以改进表面设计和应用

已经开发出一种先进的表面改性处理设计，以通过在潮湿空气中的 X 射线照射来提高镁 (Mg) 样品的耐腐蚀性。X 射线照射过程中水电离产生的 OH·自由基与主要由 Mg(OH)2 组成的自然氧化膜反应，形成约 50 nm 厚的氧化镁 (MgO) 致密表面膜作为保护防腐蚀层。X 射线照射 24 小时后，纯镁及其合金（AZ91D）试样进行盐水浸泡试验，腐蚀率显着降低（80-85%）。它们还与抛光处理后的接收样品进行了比较。这种表面改性工艺是环保的，因为它具有高回收能力，不会释放任何有害物质。