Thermomechanical Deformation Response in Cold Sprayed SiC<sub>p</sub>/Al Composites: Strengthening, Microstructure Characterization and Thermomechanical Properties

doi:10.1007/s11666-024-01910-4

IMR OpenIR

	Thermomechanical Deformation Response in Cold Sprayed SiC_p/Al Composites: Strengthening, Microstructure Characterization and Thermomechanical Properties
	Gyansah, L.1; Xiong, Tianying 2; Sesana, Raffaella 3
通讯作者	Gyansah, L.(gyansahaclass@yahoo.com) ; Xiong, Tianying(tyxiong@imr.ac.cn) ; Sesana, Raffaella(raffaella.sesana@polito.it)
	2024-12-17
发表期刊	JOURNAL OF THERMAL SPRAY TECHNOLOGY
ISSN	1059-9630
页码	16
摘要	SiCp/pure Al composites with different SiCp fractions (20, 30 and 40 wt.%) were cold sprayed followed by hot axial-compression tests at deformation temperatures of 473 K (200 degrees C) to 673 K (400 degrees C), leading to failure of specimens through routine crack propagation in their multiphase. The plastic deformation behavior of the coating with respect to the SiCp contents and the deformation temperatures were studied at strain rate 1 s(-1). As-sprayed and post-failure specimens were analyzed by x-ray computed tomography (XCT), transmission electron microscopy (TEM) and scanning electron microscopy (SEM). Quasi-static thermomechanical testing results revealed that compressive strength (UCS = 228 MPa) was the highest in the deposits that were compressed at 473 K compared to those of the as-sprayed, while the as-sprayed exhibited a compressive strength of 182.8 MPa related to the increment in SiCp fractions. Strength-plasticity synergy was promoted by dynamic recrystallization (DRX) through strengthening and refinement of the grains. The DRX degree depends relevantly on grain refinement, higher deformation temperature and the pinning effects of the interfaces promoted by the ultrafine grain structures (UFG). Reconstructed XCT data revealed different crack propagation mechanisms. A single-plane shear crack with multi-laminates fracture morphology yields relatively through the as-sprayed and as-deformed at 473 K deposits, while a multiphase plane shear cracks preeminently existed in high temperature deformed deposits resulting in multiphase-interface delaminations. Three pertinent strengthening mechanisms, videlicet, SiCp dispersed strengthening, refined grain strengthening and dislocation strengthening existed in the gradient microstructure, and their detailed contributions to the thermomechanical properties were discussed.
关键词	cold spray deformation temperature hot deformation SiCp/Al composites thermomechanical properties
资助者	National Natural Science Foundation of China
DOI	10.1007/s11666-024-01910-4
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51671205]
WOS研究方向	Materials Science
WOS类目	Materials Science, Coatings & Films
WOS记录号	WOS:001380591200001
出版者	SPRINGER
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/181116
专题	中国科学院金属研究所
通讯作者	Gyansah, L.; Xiong, Tianying; Sesana, Raffaella
作者单位	1.Assemblies God, Inst Higher Learning, Krunum Afrancho, Ghana 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 3.Politecn Torino, Dept Mech & Aerosp Engn, Turin, Italy
推荐引用方式 GB/T 7714	Gyansah, L.,Xiong, Tianying,Sesana, Raffaella. Thermomechanical Deformation Response in Cold Sprayed SiC_p/Al Composites: Strengthening, Microstructure Characterization and Thermomechanical Properties[J]. JOURNAL OF THERMAL SPRAY TECHNOLOGY,2024:16.
APA	Gyansah, L.,Xiong, Tianying,&Sesana, Raffaella.(2024).Thermomechanical Deformation Response in Cold Sprayed SiC_p/Al Composites: Strengthening, Microstructure Characterization and Thermomechanical Properties.JOURNAL OF THERMAL SPRAY TECHNOLOGY,16.
MLA	Gyansah, L.,et al."Thermomechanical Deformation Response in Cold Sprayed SiC_p/Al Composites: Strengthening, Microstructure Characterization and Thermomechanical Properties".JOURNAL OF THERMAL SPRAY TECHNOLOGY (2024):16.