Hot corrosion of modified Ti3Al-based alloy coated with thin Na2SO4 film at 910 and 950 degrees C in air

IMR OpenIR

	Hot corrosion of modified Ti3Al-based alloy coated with thin Na2SO4 film at 910 and 950 degrees C in air
	Qian, Yu-hai; Li, Xi-chao; Li, Mei-shuan; Xu, Jing-jun; Lu, Bin; Qian, YH (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China.
	2017-04-01
发表期刊	TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
ISSN	1003-6326
卷号	27 期号:4 页码:954-961
摘要	The hot corrosion behaviour of a modified Ti Al-3-based alloy under thin Na2SO4 deposit film was investigated at 910 and 950 degrees C in air. The corrosion product was identified by XRD and its morphologies on the surface and cross-section were observed by SEM. The alloy suffered from considerable hot corrosion attack. The mass gain versus time curves obtained by TGA exhibited two regions of different kinetics. The whole corroded layer consisted of loose and porous mixture oxides of TiO2, Nb2O5 and Al2O3. Numerous small nodules of corrosion product were observed. An illustrative schematic was established to describe the formation process of such nodules. It seemed that the refractory oxides played a significantly important role in determining the development of hot corrosion attack.; The hot corrosion behaviour of a modified Ti Al-3-based alloy under thin Na2SO4 deposit film was investigated at 910 and 950 degrees C in air. The corrosion product was identified by XRD and its morphologies on the surface and cross-section were observed by SEM. The alloy suffered from considerable hot corrosion attack. The mass gain versus time curves obtained by TGA exhibited two regions of different kinetics. The whole corroded layer consisted of loose and porous mixture oxides of TiO2, Nb2O5 and Al2O3. Numerous small nodules of corrosion product were observed. An illustrative schematic was established to describe the formation process of such nodules. It seemed that the refractory oxides played a significantly important role in determining the development of hot corrosion attack.
部门归属	[qian, yu-hai ; li, xi-chao ; li, mei-shuan ; xu, jing-jun ; lu, bin] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china ; [li, xi-chao] univ chinese acad sci, beijing 100039, peoples r china
关键词	Modified Ti3al-based Intermetallics Hot Corrosion Corrosion Product Nodule Na2so4 Melt
学科领域	Metallurgy & Metallurgical Engineering
资助者	National Natural Science Foundation of China [51271191, 51571205]
收录类别	SCI
语种	英语
WOS记录号	WOS:000404567000028
引用统计	被引频次：11[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/78193
专题	中国科学院金属研究所
通讯作者	Qian, YH (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China.
推荐引用方式 GB/T 7714	Qian, Yu-hai,Li, Xi-chao,Li, Mei-shuan,et al. Hot corrosion of modified Ti3Al-based alloy coated with thin Na2SO4 film at 910 and 950 degrees C in air[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,2017,27(4):954-961.
APA	Qian, Yu-hai,Li, Xi-chao,Li, Mei-shuan,Xu, Jing-jun,Lu, Bin,&Qian, YH .(2017).Hot corrosion of modified Ti3Al-based alloy coated with thin Na2SO4 film at 910 and 950 degrees C in air.TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,27(4),954-961.
MLA	Qian, Yu-hai,et al."Hot corrosion of modified Ti3Al-based alloy coated with thin Na2SO4 film at 910 and 950 degrees C in air".TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA 27.4(2017):954-961.