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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Improving the oxidation resistance of TiAl-alloys with fluorine
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Improving the oxidation resistance of TiAl-alloys with fluorine

机译：用氟提高TiAl合金的抗氧化性

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摘要

The technical TiAl-alloy gamma-MET (Ti-46.5Al-4(Cr, Nb, Ta, B)) was oxidised thermocyclically (24h-cycle-test) at 900 deg C in wet and dry air. In this paper results of untreated and fluorine treated TiAl-samples are presented. Their oxidation behaviour will be shown. Several methods were used to apply the halogens to the surface, e.g. beamline ion implantation, spraying of or dipping into a halogen containing liquid. A pure protective alumina scale was found, e.g. after treatment with a fluorine containing polymer and thermocyclic oxidation up to 1 year at 900 deg C in laboratory air. On the other side thick fast growing and non-protective mixed oxide scales were found on the untreated samples.
机译：工业TiAl合金γ-MET（Ti-46.5Al-4（Cr，Nb，Ta，B））在湿空气和干燥空气中于900摄氏度热循环氧化（24h循环测试）。本文介绍了未经处理和经氟处理的TiAl样品的结果。将显示它们的氧化行为。几种方法被用于将卤素施加到表面上，例如将卤素施加到表面上。离子束注入，喷涂或浸入含卤素的液体中。发现了纯的保护性氧化铝垢，例如。经过含氟聚合物处理并在900摄氏度的实验室空气中热循环氧化长达1年。另一方面，在未处理的样品上发现了较厚的快速生长和无保护性的混合氧化物垢。

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