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Preparation of alumina/aluminide coatings on molybdenum metal substrates, and protection performance evaluation utilizing a DZ40M superalloy casting test
Zheng, Liwei1,2; Liu, Enze2; Zheng, Zhi2; Ning, Likui2; Tong, Jian2; Tan, Zheng2
Corresponding AuthorLiu, Enze(nzliu@imr.ac.cn)
2020-08-15
Source PublicationSURFACE & COATINGS TECHNOLOGY
ISSN0257-8972
Volume395Pages:15
AbstractAlumina/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.
KeywordRefractory metal core Superalloy Pack cementation Investment casting High temperature oxidation Molten metal corrosion
Funding OrganizationNatural Science Foundation of Liaoning Province, China
DOI10.1016/j.surfcoat.2020.125931
Indexed BySCI
Language英语
Funding ProjectNatural Science Foundation of Liaoning Province, China[2019-MS329]
WOS Research AreaMaterials Science ; Physics
WOS SubjectMaterials Science, Coatings & Films ; Physics, Applied
WOS IDWOS:000539335900028
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/139319
Collection中国科学院金属研究所
Corresponding AuthorLiu, Enze
Affiliation1.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
Recommended Citation
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.
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