Preparation and corrosion resistance of short basalt fiber/7075 aluminum composite,Materials and Corrosion

当前位置： X-MOL 学术 › Mater. Corros. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Preparation and corrosion resistance of short basalt fiber/7075 aluminum composite
Materials and Corrosion ( IF 1.6 ) Pub Date : 2020-06-03 , DOI: 10.1002/maco.202011771
Yinlong Ma _{1,

2} , Hongwei Xiong ₁ , Baoyi Chen ₁

Affiliation

Aiming at the problem of poor corrosion resistance of aluminum alloy drill pipe materials in an alkaline environment, an innovative short basalt fiber/aluminum composite is prepared by vacuum hot‐press sintering technique. Also, the corrosion behavior of the composites is investigated by hydrogen evolution and electrochemical tests. The results show that the corrosion resistance of 7075 aluminum alloy is significantly improved after adding 1.0 wt% short basalt fiber. According to the results of scanning electron microscopy and electrochemical impedance spectroscopy, the main component of basalt fiber, SiO₂, reacts with the aluminum matrix to produce a large amount of Al₂O₃. Meanwhile, Si atoms diffuse into the metal melt. This reaction improves the strength and density of the oxide film of the composite material, thereby improving its corrosion resistance.

中文翻译：

玄武岩短纤维/ 7075铝复合材料的制备及耐蚀性能

针对碱性条件下铝合金钻杆材料耐蚀性差的问题，采用真空热压烧结技术制备了一种新型的玄武岩短纤维/铝复合材料。此外，还通过析氢和电化学测试研究了复合材料的腐蚀行为。结果表明，添加1.0 wt％的短玄武岩纤维可显着提高7075铝合金的耐腐蚀性。根据扫描电子显微镜和电化学阻抗谱的结果，玄武岩纤维的主要成分SiO ₂与铝基质反应生成大量的Al ₂ O _3。。同时，Si原子扩散到金属熔体中。该反应提高了复合材料的氧化膜的强度和密度，从而提高了其耐腐蚀性。

更新日期：2020-06-03

点击分享查看原文

点击收藏

阅读更多本刊最新论文