Oxidation behaviors in additive manufacturing titanium alloys via multi-eutectoid elements alloying
Kai‐Hang Jin, Cheng Liu, Lin Chen, Jianqiao Ye, Wanwan Yang, Yunting Wang, Liusong Yan, Qingyun Lin, Xiao Wei, Qingqing Ding, Hongbin Bei, Xinbao Zhao, Ze Zhang
Abstract
This study aims to investigate the oxidation behaviors of TA15, TA15-1, TA15-5, and TA15-9 alloys via multi-eutectoid alloying in the temperature range of 500–800 °C. The effective activation energy Q for oxidation of TA15, TA15-1, TA15-5, and TA15-9 were determined to be 297 kJ/mol, 321 kJ/mol, 310 kJ/mol, and 279 kJ/mol, respectively, which indicates that the TA15-1 and TA15-5 exhibited a higher oxidation resistance than TA15 titanium alloy via the optimized addition of beta-stabilizing elements. A schematic diagram of the oxidation mechanism is established to further reveal the oxidation process for TA15, TA15-1, TA15-5, and TA15-9 at elevated temperatures.