Insights into the role of W/B alloying on high-temperature oxidation behavior of Ti42Al5Mn alloy

doi:10.1016/j.jmst.2023.09.011

IMR OpenIR

	Insights into the role of W/B alloying on high-temperature oxidation behavior of Ti42Al5Mn alloy
	Zhao, Pengxiang 1,2; Ma, Hui 3; Li, Xiaobing 1,4; Gao, Ming 1,4; Ma, Yingche 1,4; Liu, Kui 1,4
通讯作者	Li, Xiaobing(lixb@jihualab.ac.cn) ; Ma, Yingche(ycma@imr.ac.cn)
	2024-04-10
发表期刊	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN	1005-0302
卷号	178 页码:188-200
摘要	In this study, the oxidation behavior of Ti42Al5Mn, Ti42Al5Mn0.5 W, Ti42Al5Mn0.5W0.1B, and Ti42Al5Mn0.8 W was investigated at 800 C-degrees. Due to the inability to form a dense protective Al-2 O-3 layer, Ti42Al5Mn suffered severe spallation during oxidation at 800 C-degrees and the mass gain was significant. The intermediate layer between the scale and the substrate was first composed of Laves/Z phase but changed to alpha(2) /Z phase with prolonged oxidation. The intermediate layer with high Ti/Al ratio favors the formation of a thick Al-2 O-3 + TiO2 mixed layer in the oxide scale which is prone to initiate cracks and cause the spalling of oxides. The doping of W in TiO2 effectively inhibited its generation and promoted the formation of a dense Al-2 O-3 layer, resulting in a significant improvement in the oxidation resistance of the alloy. Compared to Ti42Al5Mn alloy, Ti42Al5Mn0.8 W showed no spallation after 300 h cyclic oxidation and the kinetic curve changed from liner law to parabolic law. The intermediate layer of Ti42Al5Mn0.8 W alloy was composed of a single Laves phase and remained unchanged even after 10 0 0 h oxidation at 800 C-degrees, offering a favorable basis for the generation of a stable protective oxide layer in the alloy. The addition of 0.1 at.% B to Ti42Al5Mn0.5 W alloy refined its microstructure and further improved its spallation resistance to a level close to that of Ti42Al5Mn0.8 W alloy. (c) 2024 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
关键词	High-temperature oxidation Tungsten Intermediate layer Z phase beta- gamma-TiAl
资助者	National Natural Science Foundation of China
DOI	10.1016/j.jmst.2023.09.011
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51971215]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001162189500001
出版者	JOURNAL MATER SCI TECHNOL
引用统计	被引频次：5[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/321006/184206
专题	中国科学院金属研究所
通讯作者	Li, Xiaobing; Ma, Yingche
作者单位	1.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 4.Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment NMSA, Shenyang 110014, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Pengxiang,Ma, Hui,Li, Xiaobing,et al. Insights into the role of W/B alloying on high-temperature oxidation behavior of Ti42Al5Mn alloy[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2024,178:188-200.
APA	Zhao, Pengxiang,Ma, Hui,Li, Xiaobing,Gao, Ming,Ma, Yingche,&Liu, Kui.(2024).Insights into the role of W/B alloying on high-temperature oxidation behavior of Ti42Al5Mn alloy.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,178,188-200.
MLA	Zhao, Pengxiang,et al."Insights into the role of W/B alloying on high-temperature oxidation behavior of Ti42Al5Mn alloy".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 178(2024):188-200.