Optimization of Microstructure and Mechanical Properties of 2219 Al Alloy Cold-Sprayed Coating by Heat Treatment

doi:10.1007/s11666-024-01914-0

IMR OpenIR

	Optimization of Microstructure and Mechanical Properties of 2219 Al Alloy Cold-Sprayed Coating by Heat Treatment
	Tao, Huwei 1; Chang, Zhilong 2; Shen, Yong 3; Liu, Zhuang 4; Jiang, Bingxin 1; Li, Zhihang 1; Cai, Qifeng 1; Zhang, Hua 1
通讯作者	Zhang, Hua(huazhang@bipt.edu.cn)
	2025-01-03
发表期刊	JOURNAL OF THERMAL SPRAY TECHNOLOGY
ISSN	1059-9630
页码	17
摘要	This study investigates the influence of different heat treatment processes on the microstructure and mechanical properties of cold spraying coatings deposited on TIG joints of 2219 Al alloy. The results indicate that there were no significant changes in the microstructure of the joint before and after cold spraying. However, there was noticeable plastic deformation at the interface between the joint and the coating. The porosity rates of coatings subjected to room temperature, direct aging, and solution aging are 1.94%, 0.67%, and 4.57%, respectively. After direct aging, the extent of plastic deformation in the coating decreases. Following solution aging, recrystallization occurs in the coating leading to grain growth. A comparison of the microstructures of the three types of coatings revealed a gradual reduction in dislocation density and the quantity of low angle grain boundaries (LAGBs) within the coatings. Following solution aging, a significant amount of needle-like long-period transition phase theta ' precipitated. The coating hardness transitioned from a step-like distribution to a more uniform distribution, with an approximate 5HV increase in hardness within 2.5mm depth from the surface of the substrate. The tensile strength of joints with coatings improved by 5.6% and 30.9%, respectively, while the elongation increased by 15.4% and 93.3%, resulting in significantly enhanced ductility. The coating fracture mode transitions from predominantly brittle fracture to primarily ductile fracture.
关键词	cold spraying 2219 aluminum alloy mechanical properties heat treatment
资助者	Project of Construction and Support for high-level Innovative Teams of Beijing Municipal Institutions ; Shenyang Institute of Metal Research
DOI	10.1007/s11666-024-01914-0
收录类别	SCI
语种	英语
资助项目	Project of Construction and Support for high-level Innovative Teams of Beijing Municipal Institutions[BPHR20220110] ; Shenyang Institute of Metal Research
WOS研究方向	Materials Science
WOS类目	Materials Science, Coatings & Films
WOS记录号	WOS:001388920600001
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/321006/180725
专题	中国科学院金属研究所
通讯作者	Zhang, Hua
作者单位	1.Beijing Inst Petrochem Technol, Sch Mech Engn, Beijing 102617, Peoples R China 2.Cent South Univ, Light Alloy Res Inst, Changsha 410083, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 4.Shenyang Univ Technol, Sch Mat Sci & Engn, Shenyang 110870, Peoples R China
推荐引用方式 GB/T 7714	Tao, Huwei,Chang, Zhilong,Shen, Yong,et al. Optimization of Microstructure and Mechanical Properties of 2219 Al Alloy Cold-Sprayed Coating by Heat Treatment[J]. JOURNAL OF THERMAL SPRAY TECHNOLOGY,2025:17.
APA	Tao, Huwei.,Chang, Zhilong.,Shen, Yong.,Liu, Zhuang.,Jiang, Bingxin.,...&Zhang, Hua.(2025).Optimization of Microstructure and Mechanical Properties of 2219 Al Alloy Cold-Sprayed Coating by Heat Treatment.JOURNAL OF THERMAL SPRAY TECHNOLOGY,17.
MLA	Tao, Huwei,et al."Optimization of Microstructure and Mechanical Properties of 2219 Al Alloy Cold-Sprayed Coating by Heat Treatment".JOURNAL OF THERMAL SPRAY TECHNOLOGY (2025):17.