SURFACE MODIFICATION OF REFINED ALUMINUM ALLOYS BY PLASMA NITRIDING

机译：等离子体渗氮改性精炼铝合金的表面

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Aluminum and aluminum alloys are used for automotive parts but surface treatment is necessary to achieve sufficient wear resistance. Conventional gas nitriding is nearly impossible to fabricate AlN since natural Al_2O_3 film was not eliminated from surface. Plasma nitriding is a candidate approach with sputtering, which is an important key to eliminate natural Al_2O_3 from Al surface. Pure Al and Al-lmass%Ti alloys were used for investigation of the AlN formation by plasma nitriding. Bulk Mechanical Alloying (BMA) was employed in this research in order to produce homogeneous Al-Ti alloys. Plasma nitrided BMA, cold pressed and cast Al samples were analyzed by GIXD and XPS. It was found that AlN was formed on the surface with thickness up to 3 μm. Al_2O_3 was co-existing on the surface with AlN. The mechanism of AlN formation is proposed as direct reaction and deposition.

机译：铝和铝合金用于汽车部件，但必须进行表面处理才能获得足够的耐磨性。传统的气体氮化几乎不可能制造AlN，因为天然Al_2O_3膜并未从表面消除。等离子体氮化是溅射的一种候选方法，这是从Al表面去除天然Al_2O_3的重要关键。纯Al和Al-lmass％Ti合金用于研究通过等离子体氮化形成的AlN。为了生产均匀的Al-Ti合金，本研究采用了块体机械合金化（BMA）。通过GIXD和XPS分析了等离子体氮化BMA，冷压和铸造Al样品。发现在表面上形成的AlN的厚度最大为3μm。 Al_2O_3与AlN共存于表面。 AlN形成的机理被提出为直接反应和沉积。

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来源
《2002 World Congress on Powder Metallurgy amp; Particulate Materials Pt.2 Jun 16-21, 2002 Orlando, FI》|2002年|p.140-147|共8页
会议地点 Orlando FL(US)
作者
Patama Visuttipitukul; Tstsuhiko Aizawa; Hideyuki Kuwahara;
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作者单位

High performance materials laboratory The University of Tokyo 4-6-1 Komaba Meguro-ku Tokyo 153-8904 JAPAN;

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原文格式 PDF
正文语种 eng
中图分类冶金工业;
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SURFACE MODIFICATION OF REFINED ALUMINUM ALLOYS BY PLASMA NITRIDING

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