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首页> 外文期刊>Corrosion Engineering, Science and Technology >Corrosion behaviour of nanolaminated polycrystalline Ti_3SiC_2 in acidic media
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Corrosion behaviour of nanolaminated polycrystalline Ti_3SiC_2 in acidic media

机译：纳米层状多晶Ti_3SiC_2在酸性介质中的腐蚀行为

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摘要

The corrosion characteristics of polycrystalline samples of Ti_3SiC_2, fabricated by two different powder production techniques, namely hot isostatic pressing (HIP) and hot pressing (HP), were investigated electrochemically by potentiodynamic testing. The corrosion behaviour of this material was studied in dilute HCl electrolytes. The effects of solution molarity and production technique were studied. The corrosion rate of HIP Ti_3SiC_2 was strongly affected by HCI concentration and the degree of attack reached a maximum at 2M HCI, which was the highest concentration used. Furthermore, HP samples showed less corrosion resistance to HCI than HIP samples. This is attributed to the finer grain size produced by HP. The corrosion rates of Ti_3SiC_2 and Hastelloy C are of the same order, whereas that of carbon steel is greater than that of HIP Ti_3SiC_2 by approx 1000 times.
机译：采用恒电位测试法对通过热等静压（HIP）和热压（HP）两种粉末生产技术制备的Ti_3SiC_2多晶样品的腐蚀特性进行了电化学研究。在稀盐酸电解质中研究了该材料的腐蚀行为。研究了溶液摩尔浓度和生产工艺的影响。 HIP Ti_3SiC_2的腐蚀速率受HCI浓度的强烈影响，腐蚀程度在2M HCI时达到最大值，这是所使用的最高浓度。此外，与HIP样品相比，HP样品对HCl的耐腐蚀性较低。这归因于HP产生的更细的晶粒尺寸。 Ti_3SiC_2和Hastelloy C的腐蚀速率处于同一数量级，而碳钢的腐蚀速率比HIP Ti_3SiC_2大约1000倍。

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