| 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 Author | Liu, Enze(nzliu@imr.ac.cn) |
| 2020-08-15 | |
| Source Publication | SURFACE & COATINGS TECHNOLOGY
 |
| ISSN | 0257-8972 |
| Volume | 395Pages:15 |
| Abstract | 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. |
| Keyword | Refractory metal core Superalloy Pack cementation Investment casting High temperature oxidation Molten metal corrosion |
| Funding Organization | Natural Science Foundation of Liaoning Province, China |
| DOI | 10.1016/j.surfcoat.2020.125931 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Natural Science Foundation of Liaoning Province, China[2019-MS329] |
| WOS Research Area | Materials Science ; Physics |
| WOS Subject | Materials Science, Coatings & Films ; Physics, Applied |
| WOS ID | WOS:000539335900028 |
| Publisher | ELSEVIER SCIENCE SA |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/139316 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Liu, Enze |
| Affiliation | 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 |
| 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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