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

doi:10.1016/j.wear.2024.205697

IMR OpenIR

	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
	Yang, Shuai 1,2,3; Gao, Siyang 1,2,3; Xue, Weihai 1,2,3; Wu, Bi 1,2,3; Yu, Wenfeng 4; Duan, Deli 1,2,3
通讯作者	Gao, Siyang(sygao@imr.ac.cn) ; Duan, Deli(duandl@imr.ac.cn)
	2025-03-15
发表期刊	WEAR
ISSN	0043-1648
卷号	564 页码:14
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.
关键词	High-temperature sliding wear Tribo-layer "Glaze" layer Friction heat
资助者	Strategic Priority Research Program of the Chinese Academy of Sciences ; Liaoning Key Laboratory of Aero-engine Material Tribology
DOI	10.1016/j.wear.2024.205697
收录类别	SCI
语种	英语
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
WOS类目	Engineering, Mechanical ; Materials Science, Multidisciplinary
WOS记录号	WOS:001388320400001
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：1[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/321006/181014
专题	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.