Effect of Al on Microstructure and Mechanical Properties of ATI 718Plus by Laser Additive Manufacturing

doi:10.1007/s40195-024-01764-3

IMR OpenIR

	Effect of Al on Microstructure and Mechanical Properties of ATI 718Plus by Laser Additive Manufacturing
	Zhang, Zhipeng 1,2,3; Liu, Jide 3; Wang, Xinguang 3; Chu, Zhaokuang 3; Zhou, Yizhou 3; Wang, Jianjun 1,2; Li, Jinguo 3
通讯作者	Liu, Jide(jdliu@imr.ac.cn) ; Li, Jinguo(jgli@imr.ac.cn)
	2024-09-15
发表期刊	ACTA METALLURGICA SINICA-ENGLISH LETTERS
ISSN	1006-7191
页码	16
摘要	To clarify the mechanism of the role of Al element in the additive manufacturing of Ni-based superalloys, ATI 718Plus alloys with varying Al contents (1, 3, and 5 wt%) were fabricated using the laser additive manufacturing and the effects of Al content on the microstructure and mechanical properties were systematically analyzed. The experimental and CALPHAD simulation results show that with the increase in Al addition, the freezing range of the alloys was lowered, but this has a paradoxical effect on the susceptibility of the alloy to hot-tearing and solid-state cracking. The addition of Al increased the gamma ' and Laves phase volume fractions and suppressed the precipitation of the eta phase. Simultaneously improving gamma/gamma ' lattice misfits effectively promoted the transformation of gamma ' phase from spherical to cubic. The precipitation of NiAl phase in the 5 wt% Al-added alloy was determined, the formation mechanism of NiAl phase was analyzed, and the solidification sequence of the precipitated phase in the alloy was summarized. In addition, with the increase in Al addition, the microhardness of the alloy increased gradually, the tensile strength increased at first and then decreased, but the plasticity deteriorated seriously. The insights gained from this study offer valuable theoretical guidance for the strategic compositional design of additively manufactured Ni-based superalloys destined for deployment under extreme conditions.
关键词	Laser additive manufacturing ATI 718Plus Laves phase Microstructure Mechanical properties
资助者	National Science and Technology Major Project
DOI	10.1007/s40195-024-01764-3
收录类别	SCI
语种	英语
资助项目	National Science and Technology Major Project[J2019-VI-0004-0144]
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001313688000003
出版者	CHINESE ACAD SCIENCES, INST METAL RESEARCH
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/189980
专题	中国科学院金属研究所
通讯作者	Liu, Jide; Li, Jinguo
作者单位	1.Northeastern Univ, Sch Mat Sci & Engn, Key Lab Anisotropy & Texture Mat MOE, Shenyang 110819, Peoples R China 2.Northeastern Univ, Res Ctr Met Wires, Shenyang 110819, Peoples R China 3.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Zhipeng,Liu, Jide,Wang, Xinguang,et al. Effect of Al on Microstructure and Mechanical Properties of ATI 718Plus by Laser Additive Manufacturing[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2024:16.
APA	Zhang, Zhipeng.,Liu, Jide.,Wang, Xinguang.,Chu, Zhaokuang.,Zhou, Yizhou.,...&Li, Jinguo.(2024).Effect of Al on Microstructure and Mechanical Properties of ATI 718Plus by Laser Additive Manufacturing.ACTA METALLURGICA SINICA-ENGLISH LETTERS,16.
MLA	Zhang, Zhipeng,et al."Effect of Al on Microstructure and Mechanical Properties of ATI 718Plus by Laser Additive Manufacturing".ACTA METALLURGICA SINICA-ENGLISH LETTERS (2024):16.