Kinetics of thermal oxidation of TA2
Thermal oxidation treatment is a convenient and environmental friendly technique that can be used to harden the surface of titanium alloys,and hence improve the poor properties of the materials.The aim of the paper is to study the oxidizing kinetics of the process at different temperatures.With this purpose,pure titanium TA2 was subjected to thermal oxidation (TO) treatment in a conventional muffle furnace at 500℃~1050℃ for 20mins~930mins under air atmosphere and cooled in the air.The surface morphology of the oxide layer at various temperatures was observed by scanning electron microscopy (SEM).The weight gain after oxidation treatment under different testing condition was measured and calculated.It is concluded that the oxidizing kinetics at 600℃ ~750℃ followed parabolic law,and the parabola rate constant of Kp was investigated.The oxide layer formed at temperatures lower than 800℃ is dense and protectable,while it is getting very loose at temperatures higher than 800℃.
Kinetics Thermogravimetric analysis TA2
Jing Hu Yuan Fang Yan Wang
School of Materials Science and Engineering, Changzhou University;Key Laboratory of Advanced Metal M School of Materials Science and Engineering, Changzhou University
国际会议
西安
英文
12-15
2012-08-24（万方平台首次上网日期，不代表论文的发表时间）