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有色金属(冶炼部分):2011,(6):29-32
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TiAl涂层对Ti3Al合金的热腐蚀防护
(中原工学院 材料与化工学院,郑州 450007)
Effect of TiAl Coating on Hot Corrosion Protection of Ti3Al Alloy
(Material and Chemical Engineering Department, Zhong Yuan Institute of Technology, Zhengzhou 450007, China)
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中文摘要: 利用磁控溅射的方法在Ti3Al合金上溅射Ti-48Al-8Cr-2Ag涂层,研究涂层对Ti3Al合金热腐蚀行为的影响。热腐蚀采用浸盐法,在900℃ 25%Na2SO4+75%K2SO4熔盐中进行,利用带能谱的扫描电镜(SEM/EDX)对腐蚀膜进行观察分析。结果表明,在熔盐热腐蚀中,Ti3Al合金表面发生大面积脱落,而涂层试样表面腐蚀膜结合牢固。涂层对基体具有很好的防护作用。
中文关键词: 金属材料  Ti3Al  TiAl涂层  热腐蚀
Abstract:The effect of TiAl coating on the hot corrosion and protection of Ti3Al alloy is investigated by magnetron-sputter deposition to produce a Ti-48Al-8Cr-2Ag coating on a cast Ti3Al alloy substrate. The hot corrosion is carried out in molten (Na,K)2SO4 at 900℃, the resulting scale structures are analyzed by scanning electron microscopy (SEM) with energy dispersive x-ray diffraction (EDX). The results indicate that the spallation occurs at most areas on the Ti3Al alloy while the sputtered coating bonds the scale firmly. The sputtered coating exhibited the excellent protection for the Ti3Al alloy.
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基金项目:国家自然科学基金资助项目(50171068)
引用文本:
席艳君,刘泳俊,王志新,卢金斌.TiAl涂层对Ti3Al合金的热腐蚀防护[J].有色金属(冶炼部分),2011(6):29-32.
XI Yan-jun,LIU Yong-jun,WANG Zhi-xin,LU Jin-bin.Effect of TiAl Coating on Hot Corrosion Protection of Ti3Al Alloy[J].Nonferrous Metals (Extractive Metallurgy),2011(6):29-32.

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