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热处理对β钛合金微弧氧化膜特性的影响
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内蒙古工业大学 材料科学与工程学院,内蒙古工业大学 材料科学与工程学院,内蒙古工业大学 材料科学与工程学院,内蒙古工业大学 材料科学与工程学院,内蒙古工业大学 材料科学与工程学院

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内蒙古自治区自然科学基金资助(项目号2014MS0543)


Effect of Heat Treatment on Characteristics of Coating Formed on Beta Titanium Alloy by Micro-arc Oxidation
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School of Materials Science and Engineering,Inner Mongolia University of Technology,Hohhot,School of Materials Science and Engineering,Inner Mongolia University of Technology,Hohhot,School of Materials Science and Engineering,Inner Mongolia University of Technology,Hohhot,School of Materials Science and Engineering,Inner Mongolia University of Technology,Hohhot,School of Materials Science and Engineering,Inner Mongolia University of Technology,Hohhot

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    摘要:

    通过对Ti-3.5Al-5Mo-6V-3Cr-2Sn-0.5Fe合金进行热处理,研究热处理工艺对该合金的相组成和电阻率的影响以及对氧化膜的厚度、粗糙度、微观形貌及相组成的影响。结果表明,热处理通过改变Ti-3.5Al-5Mo-6V-3Cr-2Sn-0.5Fe合金的相组成;热处理后试样的电阻率小幅降低;经850℃固溶热处理后所获微弧氧化膜的厚度和粗糙度最小,分别为48.3μm和7.45μm;微弧氧化膜微观形貌显示,经750℃和850℃固溶热处理后的试样,在微弧氧化后,其膜层表面裂纹较少,并且致密;微弧氧化膜主要的组成相为金红石相TiO2和锐钛矿相TiO2

    Abstract:

    The phase composition and resistivity of Ti-3.5Al-5Mo-6V-3Cr-2Sn-0.5Fe alloy undergone with different heat treatment process were studied, and the effects of heat treatment on thickness, roughness, micro morphology and phase composition of micro-arc oxidation coating were analyzed. The results show that the phase composition of Ti-3.5Al-5Mo-6V-3Cr-2Sn-0.5Fe alloy is changed by different heat treatment. The resistivity of alloy is slight decrease after heat treatment. With the solidSsolutionSheat treatment of 850 ℃, the minimum thickness and roughness of the micro-arc oxidation coating is 48.3 μm and 7.45μm which is obtained respectively. By the observation of morphology of oxidation coating, the crack is less and coating is compact with 750 ℃ and 850℃ solid solution heat treatment. XRD analysis shows that micro-arc oxidation coating is composed of anatase TiO2 and rutile TiO2.

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吕凯,杜赵新,刘向东,付俊凇,池波.热处理对β钛合金微弧氧化膜特性的影响[J].稀有金属材料与工程,2016,45(12):3290~3294.[Lv Kai, Du Zhaoxin, Liu Xiangdong, Fu Junsong, Chi Bo. Effect of Heat Treatment on Characteristics of Coating Formed on Beta Titanium Alloy by Micro-arc Oxidation[J]. Rare Metal Materials and Engineering,2016,45(12):3290~3294.]
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  • 收稿日期:2016-01-26
  • 最后修改日期:2016-04-08
  • 录用日期:2016-04-27
  • 在线发布日期: 2017-02-06
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