Effect of niobium addition on tensile properties and oxidation resistance of a titanium-based alloy

被引：12
|
作者：
Cui, Yujie [1 ]
Aoyagi, Kenta [1 ]
Koizumi, Yuichiro [1 ,4 ]
Yang, Cheng [1 ]
Bian, Huakang [1 ]
Hayasaka, Yuichiro [3 ]
Fujieda, Tadashi [2 ]
Chiba, Akihiko [1 ]
机构：
[1] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan
[2] Hitachi Ltd, Res & Dev Grp, Ctr Technol Innovat Mat, Hitachi, Ibaraki 3191292, Japan
[3] Tohoku Univ, Electron Microscopy Ctr, Sendai, Miyagi 9808577, Japan
[4] Osaka Univ, Grad Sch Engn, Div Mat & Mfg Sci, 2-1 Yamadaoka, Suita, Osaka 5650871, Japan
来源：
CORROSION SCIENCE | 2021年 / 180卷
基金：
日本学术振兴会;
关键词：
Titanium; EPMA; SEM; STEM; XRD; Oxidation; HIGH-TEMPERATURE OXIDATION; TI-6AL-4V ALLOY; BEHAVIOR; NB; CORROSION; TI; AIR; MECHANISMS;
D O I：
10.1016/j.corsci.2020.109198
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Previous research has inadequately elucidated the influence of Nb addition on the tensile properties and oxidation resistance of Ti-based alloys. Herein, the tensile properties and oxidation resistance of Ti-6Al-2Sn-4Zr-2Mo-0.1Si-1.0B-xNb (x = 0, 0.2, and 1.0) alloys were investigated. The oxidation resistance was significantly improved by Nb addition without significantly influencing the tensile properties. The substitution of Ti4+ by Nb5+ in TiO2 and promoted formation of a Sn-rich layer between the oxidation layer and substrate caused an increase in the oxidation resistance, thus highlighting the effectiveness of Nb addition in enhancing the oxidation resistance.
引用
收藏
页数：10
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