Oxidation Behavior of Near alpha-Titanium Alloy Ti60
Jia Weijue1; Zeng Weidong; Liu Jianrong2; Wang Qingjiang2; Zhou Yigang
Corresponding AuthorJia Weijue()
AbstractAir oxidation behavior of Ti60 alloy was studied in the temperature range from 600 degrees C to 750 degrees C. In addition to the determination of the oxidation kinetics by mass gain measurements, the morphology of the scales formed was observed by SEM and the phases present in the scales were characterized by X-ray diffraction. Results show that under the condition of oxidation at 600-750 degrees C for 0-100 h, the oxidation exponent n is between 1 and 2 calculated by oxidation experience formula of Wagner, the total oxidation energy is 256 kJ/mol, and the oxidation kinetics follows the linear-parabolic law. When Ti60 alloy was oxidized at 600 degrees C for 100 h or at 750 degrees C for 10 h, the oxidation product is TiO(2), while there was a little Al(2)O(3) on the surface when the alloy was oxidized at 750 degrees C for 100 h. The oxides were preferentially formed at the grain boundaries of the alloy. Besides the oxidation layer on the sample surface, oxygen also dissolves into the matrix to form brittle oxygen-enriched layer resulting in the mechanical property change. The oxygen-enriched layer was thickened with the increase of oxidation temperature and prolonging of the oxidation time.
KeywordTi60 alloy oxidation oxygen-enriched layer
Indexed BySCI
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000291452300001
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Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorJia Weijue
Affiliation1.NW Polytech Univ, Sch Mat Sci & Engn, State Key Lab Solidificat Proc, Xian 710072, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
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GB/T 7714
Jia Weijue,Zeng Weidong,Liu Jianrong,et al. Oxidation Behavior of Near alpha-Titanium Alloy Ti60[J]. RARE METAL MATERIALS AND ENGINEERING,2010,39(5):781-786.
APA Jia Weijue,Zeng Weidong,Liu Jianrong,Wang Qingjiang,&Zhou Yigang.(2010).Oxidation Behavior of Near alpha-Titanium Alloy Ti60.RARE METAL MATERIALS AND ENGINEERING,39(5),781-786.
MLA Jia Weijue,et al."Oxidation Behavior of Near alpha-Titanium Alloy Ti60".RARE METAL MATERIALS AND ENGINEERING 39.5(2010):781-786.
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