A comparative study of the differences in microstructure and properties of tribo-layers of DD5 nickel-based single-crystal superalloys caused by external heat and friction heat in dry sliding wear
文献类型：期刊论文
| 作者 | Yang, Shuai1,2,3; Gao, Siyang1,2,3; Xue, Weihai1,2,3; Wu, Bi1,2,3; Yu, Wenfeng4; Duan, Deli1,2,3 |
| 刊名 | WEAR
 |
| 出版日期 | 2025-03-15 |
| 卷号 | 564页码:14 |
| 关键词 | High-temperature sliding wear Tribo-layer "Glaze" layer Friction heat |
| ISSN号 | 0043-1648 |
| DOI | 10.1016/j.wear.2024.205697 |
| 通讯作者 | Gao, Siyang(sygao@imr.ac.cn) ; Duan, Deli(duandl@imr.ac.cn) |
| 英文摘要 | In high-temperature sliding wear, the tribo-layer of DD5 nickel-based single-crystal superalloy caused by external heat applied at high ambient temperatures has been well investigated, but the mechanical properties, microstructure, and chemical composition of the tribo-layer caused by friction heat are still not clear. The differences between the tribo-layers of DD5 nickel-based single-crystal superalloys caused by external heat and friction heat in dry sliding wear were investigated firstly by a high-temperature tribometer and a high-speed rubbing tester. The microstructures and chemical compositions of the two tribo-layers were characterized by a field emission scanning electron microscope (SEM), a transmission electron microscope (TEM), a Raman spectroscopy, and an electron backscattering diffraction (EBSD) technique. The mechanical properties of the tribo-layers were tested by a Vickers hardness tester. The results show that the tribo-layer caused by friction heat exhibits thinner thickness, higher wear scar coverage, lower microhardness, and poorer adhesion compared to the tribo-layer caused by external heat. There are significant differences in the microstructure and chemical composition of the tribo-layers caused by external heat and friction heat. The tribo-layer caused by external heat consists of a mechanically mixed layer, an internal oxidized layer, and an ultrafine grain layer due to plastic deformation. The tribo-layer caused by friction heat is composed of a single nanocrystalline layer. The top of the nanocrystalline layer exhibits a columnar crystal structure, and the bottom is an equiaxial crystal structure. In addition, there is a difference in the way of crack initiation and extension in the tribo-layers caused by external heat and friction heat. |
| 资助项目 | Strategic Priority Research Program of the Chinese Academy of Sciences[XDB 047010204] ; Liaoning Key Laboratory of Aero-engine Material Tribology |
| WOS研究方向 | Engineering ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001388320400001 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | Strategic Priority Research Program of the Chinese Academy of Sciences ; Liaoning Key Laboratory of Aero-engine Material Tribology |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Gao, Siyang; Duan, Deli |
| 作者单位 | 1.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, 72 Wenhua Rd, Shenyang 110016, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Liaoning Key Lab Aeroengine Mat Tribol, 72 Wenhua Rd, Shenyang 110016, Peoples R China 4.Liaoning Petrochem Univ, Sch Mech Engn, 1 Dandong Rd, Fushun 113001, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Shuai,Gao, Siyang,Xue, Weihai,et al. A comparative study of the differences in microstructure and properties of tribo-layers of DD5 nickel-based single-crystal superalloys caused by external heat and friction heat in dry sliding wear[J]. WEAR,2025,564:14. |
| APA | Yang, Shuai,Gao, Siyang,Xue, Weihai,Wu, Bi,Yu, Wenfeng,&Duan, Deli.(2025).A comparative study of the differences in microstructure and properties of tribo-layers of DD5 nickel-based single-crystal superalloys caused by external heat and friction heat in dry sliding wear.WEAR,564,14. |
| MLA | Yang, Shuai,et al."A comparative study of the differences in microstructure and properties of tribo-layers of DD5 nickel-based single-crystal superalloys caused by external heat and friction heat in dry sliding wear".WEAR 564(2025):14. |
入库方式： OAI收割
来源：金属研究所
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