Preparation of alumina/aluminide coatings on molybdenum metal substrates, and protection performance evaluation utilizing a DZ40M superalloy casting test

doi:10.1016/j.surfcoat.2020.125931

IMR OpenIR

	Preparation of alumina/aluminide coatings on molybdenum metal substrates, and protection performance evaluation utilizing a DZ40M superalloy casting test
	Zheng, Liwei 1,2; Liu, Enze 2; Zheng, Zhi 2; Ning, Likui 2; Tong, Jian 2; Tan, Zheng 2
通讯作者	Liu, Enze(nzliu@imr.ac.cn)
	2020-08-15
发表期刊	SURFACE & COATINGS TECHNOLOGY
ISSN	0257-8972
卷号	395 页码:15
摘要	Alumina/aluminide coatings were prepared on pure molybdenum substrates by pack cementation and subsequent pre-oxidation treatments in order to protect the underlying molybdenum cores from oxidation, and as well as to molten metal corrosion during the casting of superalloys. The microstructure of the aluminide coatings formed at different aluminizing parameters (time, temperature, and pack chemistry) and the evolution of the corresponding coatings during the pre-oxidation treatments were systematically investigated by means of X-ray diffraction (XRD), scanning electron microscopy (SEM), electron probe microanalysis (EPMA), and electron backscatter diffraction (EBSD). A proper coating system defined by the experiments mentioned above is composed of four layers (alpha-Al2O3, AlMo3, Al8Mo3, and AlMo3) and the multilayer has total thickness < 50 mu m. A casting test utilizing DZ40M superalloy demonstrated that the selected coating system showed significant oxidation-resistant and corrosion-resistant capacities.
关键词	Refractory metal core Superalloy Pack cementation Investment casting High temperature oxidation Molten metal corrosion
资助者	Natural Science Foundation of Liaoning Province, China
DOI	10.1016/j.surfcoat.2020.125931
收录类别	SCI
语种	英语
资助项目	Natural Science Foundation of Liaoning Province, China[2019-MS329]
WOS研究方向	Materials Science ; Physics
WOS类目	Materials Science, Coatings & Films ; Physics, Applied
WOS记录号	WOS:000539335900028
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：8[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/321006/139316
专题	中国科学院金属研究所
通讯作者	Liu, Enze
作者单位	1.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China 2.Chinese Acad Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Zheng, Liwei,Liu, Enze,Zheng, Zhi,et al. Preparation of alumina/aluminide coatings on molybdenum metal substrates, and protection performance evaluation utilizing a DZ40M superalloy casting test[J]. SURFACE & COATINGS TECHNOLOGY,2020,395:15.
APA	Zheng, Liwei,Liu, Enze,Zheng, Zhi,Ning, Likui,Tong, Jian,&Tan, Zheng.(2020).Preparation of alumina/aluminide coatings on molybdenum metal substrates, and protection performance evaluation utilizing a DZ40M superalloy casting test.SURFACE & COATINGS TECHNOLOGY,395,15.
MLA	Zheng, Liwei,et al."Preparation of alumina/aluminide coatings on molybdenum metal substrates, and protection performance evaluation utilizing a DZ40M superalloy casting test".SURFACE & COATINGS TECHNOLOGY 395(2020):15.