High-temperature oxidation behavior of double glow plasma Cr-Y alloyed layers on Ti2AlNb alloy

被引：1
|
作者：
Zu, Ruijie [1 ]
Wang, Wenbo [1 ]
Lin, Naiming [2 ]
Tian, Linhai [2 ]
Wu, Tao [2 ]
Li, Xiaokai [2 ]
机构：
[1] Taiyuan Univ Technol, Coll Mech & Vehicle Engn, Taiyuan 030024, Shanxi, Peoples R China
[2] Taiyuan Univ Technol, Coll Mat Sci & Engn, Taiyuan 030024, Shanxi, Peoples R China
来源：
MATERIALS LETTERS | 2024年 / 370卷
关键词：
Cr-Y alloyed layer; Surfaces; Double glow plasma surface alloying technique; Ti2AlNb alloy; Oxidation; RESISTANCE; COATINGS;
D O I：
10.1016/j.matlet.2024.136706
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A Cr -Y alloyed layer was synthesized on the surface of Ti2AlNb by double glow plasma surface alloying technique. The morphology, phase composition and oxidation behaviors at 750 degrees C, 800 degrees C, and 850 degrees C of Cr -Y alloyed layers were systematically investigated. The results illustrated that Cr -Y alloyed layer was approximately 10 mu m thick, which the morphology of alloyed layer was uniform and compact, with a flat and uniform interface to the matrix. Oxidation kinetics for the Cr -Y alloyed layer approximately followed the parabolic law, with an oxidation weight gain significantly lower than that of Ti2AlNb. The predominant oxides of Cr -Y layer were CrNbO4, Cr2O3, and Y2O3, which effectively hindered oxygen diffusion into the substrate.
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页数：4
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