Controlling of microstructures and mechanical properties based on the non-equilibrium microstructures of a nickel-based superalloy fabricated by laser powder bed fusion

doi:10.1016/j.msea.2024.146487

IMR OpenIR

	Controlling of microstructures and mechanical properties based on the non-equilibrium microstructures of a nickel-based superalloy fabricated by laser powder bed fusion
	Zhang, Weiguang 1; Gao, Shuang 1; Li, Shuijin 1; Lan, Liang 1; Zhang, Dongdong 2; Lu, Guoxin 3; Cui, Luqing 4; Li, Linzi 5; He, Bo 1
通讯作者	Gao, Shuang(gaoshuang_alloy@163.com) ; He, Bo(jdhebo@163.com)
	2024-05-01
发表期刊	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN	0921-5093
卷号	900 页码:10
摘要	In this paper, we propose a novel idea of controlling microstructure and mechanical properties based on the nonequilibrium microstructure of nickel-based superalloy fabricated by laser powder bed fusion (LPBF). The network microstructures were firstly built in LPBF nickel-based superalloys by direct aging (DA) heat treatment. Thermodynamic calculations were conducted to design the DA and homogenizing + DA (HDA) heat treatments for elucidating the control mechanism. The results showed that the non-equilibrium microstructures in as-built nickel-based superalloy contributed to the network microstructure formation and recrystallization during DA heat treatment. The grains were refined and the <001> texture was eliminated after DA heat treatment. The nonequilibrium microstructures were removed and the recrystallized grains tended to coarsen after HDA heat treatment due to high temperature homogenizing treatment. The in-situ nano gamma ' phase uniformly distributed in the grains of HAD-treated microstructures, which was also found inside network microstructures of DA-treated microstructures. Due to the additional strengthening effect of refined grains and network microstructures, the strength of DA-treated sample was higher than those of as-built and HAD-treated samples, while the ductility was lower than that of as-built sample, and but was close to that of HAD-treated sample. This study will provide guidance for developing a suitable heat treatment process of LPBF nickel-based superalloys.
关键词	Nickel-based superalloy Laser powder bed fusion Network microstructures Direct aging treatment Mechanical properties
资助者	Class III Peak Discipline of Shanghai-Materials Science and Engineering (High-Energy Beam Intelligent Processing and Green Manufacturing)
DOI	10.1016/j.msea.2024.146487
收录类别	SCI
语种	英语
资助项目	Class III Peak Discipline of Shanghai-Materials Science and Engineering (High-Energy Beam Intelligent Processing and Green Manufacturing)
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001289708100001
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：3[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/321006/188899
专题	中国科学院金属研究所
通讯作者	Gao, Shuang; He, Bo
作者单位	1.Shanghai Univ Engn Sci, Sch Mat Engn, Shanghai 201620, Peoples R China 2.Hong Kong Polytech Univ, Hong Kong 999077, Peoples R China 3.Shandong Univ, Sch Mat Sci & Engn, Jinan 250061, Peoples R China 4.Xi An Jiao Tong Univ, Sch Mech Engn, Xian 710049, Peoples R China 5.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Weiguang,Gao, Shuang,Li, Shuijin,et al. Controlling of microstructures and mechanical properties based on the non-equilibrium microstructures of a nickel-based superalloy fabricated by laser powder bed fusion[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2024,900:10.
APA	Zhang, Weiguang.,Gao, Shuang.,Li, Shuijin.,Lan, Liang.,Zhang, Dongdong.,...&He, Bo.(2024).Controlling of microstructures and mechanical properties based on the non-equilibrium microstructures of a nickel-based superalloy fabricated by laser powder bed fusion.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,900,10.
MLA	Zhang, Weiguang,et al."Controlling of microstructures and mechanical properties based on the non-equilibrium microstructures of a nickel-based superalloy fabricated by laser powder bed fusion".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 900(2024):10.