High-Temperature Oxidation Behavior of the Ti-6Al-4V Alloy Manufactured by Selective Laser Sintering

被引：12
作者：
Liang, Zhiyuan [1 ]
Tang, Bin [1 ]
Gui, Yong [1 ]
Zhao, Qinxin [1 ]
机构：
[1] Xi An Jiao Tong Univ, Sch Energy & Power Engn, Key Lab Thermal Fluid Sci & Engn MOE, Xian 710049, Shaanxi, Peoples R China
来源：
JOM | 2019年 / 71卷 / 10期
基金：
中国国家自然科学基金;
关键词：
MECHANICAL-PROPERTIES; TITANIUM-ALLOY; MICROSTRUCTURE;
D O I：
10.1007/s11837-019-03674-7
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The high-temperature corrosion behavior of Ti-6Al-4V manufactured by selective laser sintering in air at 600 degrees C for 400 h was studied. The corrosion products were characterized by x-ray diffraction, x-ray photoelectron spectroscopy, scanning electron microscopy, and energy dispersive spectrometry. The results show that the oxidation kinetics of Ti-6Al-4V manufactured by selective laser sintering followed a sub-parabolic law at 600 degrees C. The oxidation resistance of the Ti-6Al-4V made by selective laser sintering was better than that of the Ti-6Al-4V made by rolling and laser beam melting. Oxidation products on Ti-6Al-4V were composed of multiple layers of TiO2 and Al2O3. Several intervals of Al2O3 layers enhanced the oxidation resistance of Ti-6Al-4V manufactured by selective laser sintering. The growth mechanism of the oxide scales is proposed.
引用
收藏
页码：3600 / 3605
页数：6
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