Hot-dip Aluminizing Fabrication of TiAl3 Coating on TA15 Alloy and Its High Temperature Oxidation Behaviors

IMR OpenIR

	Hot-dip Aluminizing Fabrication of TiAl3 Coating on TA15 Alloy and Its High Temperature Oxidation Behaviors
	Z. G. Zhang; Y. P. Peng; Y. L. Mao; C. M. Hou; L. Xu
	2012
发表期刊	High Temperature Materials and Processes
ISSN	0334-6455
卷号	30 期号:6 页码:519-525
摘要	A TiAl3-rich coating was developed by hot-dip aluminizing method and subsequent interdiffusion treatment on Ti-6.5Al-1Mo-1V-2Zr (mass %) alloy for high temperature resistance. Interrupted oxidation at temperatures from 973 to 1173 K and isothermal oxidation at temperatures from 923 to 1073 K of the TiAl3-rich coating were conducted. The coating markedly decreased the oxidation rate in comparison with the substrate alloy at 1073 K and lower during the interrupted oxidation, and a layered structure of Al2O3/TiAl3/TiAl2/TiAl/alloy from the outside to the inside formed after oxidation at 973 K without changing the main body of the TiAl3-rich coating. The oxidation kinetics followed parabolic relations during the stable state stage of the isothermal oxidation; the activation energy for oxidation of the coating was calculated as 323 kJ mol(-1). The hot-dip aluminizing coating provided high protectiveness for the Ti-6.5Al-1Mo-1V-2Zr alloy at 973 K and lower. The oxidation performance of the TiAl3-rich coating was discussed in detail.
部门归属	[zhang, z. g.; peng, y. p.; mao, y. l.; hou, c. m.] shenyang univ chem technol, sch appl chem, shenyang 110142, peoples r china. [xu, l.] chinese acad sci, inst met res, shenyang, peoples r china.;zhang, zg (reprint author), shenyang univ chem technol, sch appl chem, shenyang 110142, peoples r china.;zhg_syict@sohu.com
关键词	Ti-6.5al-1mo-1v-2zr High Temperature Oxidation Hot-dip Aluminizing Activation Energy Ti-6al-4v Alloy Titanium-alloy Ti Resistance Al Diffusion Microstructure Interdiffusion Protection Cr
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/60469
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Z. G. Zhang,Y. P. Peng,Y. L. Mao,et al. Hot-dip Aluminizing Fabrication of TiAl3 Coating on TA15 Alloy and Its High Temperature Oxidation Behaviors[J]. High Temperature Materials and Processes,2012,30(6):519-525.
APA	Z. G. Zhang,Y. P. Peng,Y. L. Mao,C. M. Hou,&L. Xu.(2012).Hot-dip Aluminizing Fabrication of TiAl3 Coating on TA15 Alloy and Its High Temperature Oxidation Behaviors.High Temperature Materials and Processes,30(6),519-525.
MLA	Z. G. Zhang,et al."Hot-dip Aluminizing Fabrication of TiAl3 Coating on TA15 Alloy and Its High Temperature Oxidation Behaviors".High Temperature Materials and Processes 30.6(2012):519-525.