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首页> 外文期刊>Journal of Materials Engineering and Performance >Stress Corrosion Resistance of Laser Shock Peening/Microarc Oxidation Reconstruction Layer Fabricated on AZ80 Magnesium Alloy in Simulated Body Fluid
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Stress Corrosion Resistance of Laser Shock Peening/Microarc Oxidation Reconstruction Layer Fabricated on AZ80 Magnesium Alloy in Simulated Body Fluid

机译：AZ80镁合金中模拟体液中AZ80镁合金制造的激光冲击喷丸/微路氧化重建层的应力耐腐蚀性

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摘要

Three types of surface treatments were performed on AZ80 magnesium (Mg) alloy by laser shock peening (LSP), microarc oxidation (MAO), and laser shock peening followed by microarc oxidation (LSP/MAO). The stress corrosion resistance of treated and untreated specimens was carried out using slow strain rate tensile testing at a strain rate of 5 x 10(-7)/s in simulated body fluid. The influence of microstructure on the stress corrosion behavior was analyzed by x-ray diffraction, transmission electron microscopy, scanning electron microscopy, and electrochemical measurement. The results showed that the LSP/MAO specimen has a higher stress corrosion resistance compared to the AZ80 Mg alloy substrate, the LSP-treated specimen, and the MAO-treated specimen. The factors improving the stress corrosion resistance of the LSP/MAO specimen are its nanocrystalline material, compressive residual stress, and favorable (0002) basal texture of its reconstructed layer.
机译：通过激光休克喷丸（LSP），微arc氧化（MAO），和激光冲击，对AZ80镁（Mg）合金进行三种类型的表面处理，然后进行微arc氧化（LSP / MAO）。 处理和未处理标本的应力耐腐蚀性在模拟体液中以5×10（-7）/ s的应变速率为5×10（-7）/ s的慢应变速率拉伸试验进行。 通过X射线衍射，透射电子显微镜，扫描电子显微镜和电化学测量分析微观结构对应力腐蚀行为的影响。 结果表明，与AZ80mg合金基材，LSP处理的样品和MAO处理的样品相比，LSP / MAO样品具有更高的应力耐腐蚀性。 改善LSP / MAO样本的应力耐腐蚀性的因素是其重建层的纳米晶体，压缩残余应力和有利（0002）基础纹理。

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