Computational Design of Novel Ni Superalloys with Low Crack Susceptibility for Additive Manufacturing

doi:10.1007/s11661-022-06653-x

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	Computational Design of Novel Ni Superalloys with Low Crack Susceptibility for Additive Manufacturing
	Yu, Hao 2; Liang, Jingjing 1; Bi, Zhongnan 3; Li, Jinguo 1; Xu, Wei 2
刊名	METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
	2022-06-01
卷号	53 期号:6 页码:1945-1954
ISSN号	1073-5623
DOI	10.1007/s11661-022-06653-x
通讯作者	Xu, Wei(xuwei@ral.neu.edu.cn)
英文摘要	Additive manufacturing (AM) has enabled the fabrication of innovative, geometrically complex components of metallic materials with minimal material waste. However, the application of AM in processing Ni superalloys remains challenging because of the high crack susceptibility. To address this problem, a computationally design method was applied to design novel Ni superalloys with low crack proneness as well as decent service performance. Different types of crack formation mechanisms during AM processing, i.e., the hot tear cracks and strain-age cracks, have been considered, while a series of corresponding criteria to quantitively describe the crack susceptibility were parallelly analyzed. To select the most proper criteria as optimization index in alloy design regime, a series of prototype alloys with wide range of alloying elements were printed, with their crack behaviors being quantitively captured. The freezing range criterion and strain-age crack criterion were then determined as the optimization index in the design routine. A genetic algorithm was applied to probe the compositional search domain, while a Pareto front linking the hot tear crack criterion and strain-age crack criterion was constructed by combining results of two separate optimization routes. Novel Ni compositions with optimized crack resistance as well as decent microstructural features were thereby identified. The new solutions are predicted to possess fairly better crack formation resistance compared to existing Ni superalloys. Moreover, the newly designed alloys manage to computationally outperform the existing printable alloys in all aspects of temperature capability, creep properties and oxidation resistance.
资助项目	National Key Research and Development Program[2021YFB3702503] ; National Natural Science Foundation of China[U1808208] ; National Natural Science Foundation of China[51961130389] ; Fundamental Research Funds for the Central Universities[N2107006]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000782877000002
资助机构	National Key Research and Development Program ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/172770]
专题	金属研究所_中国科学院金属研究所
通讯作者	Xu, Wei
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Northeastern Univ, State Key Lab Rolling & Automat, Shenyang 110819, Peoples R China 3.Cent Iron & Steel Res Inst, High Temp Mat Dept, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Yu, Hao,Liang, Jingjing,Bi, Zhongnan,et al. Computational Design of Novel Ni Superalloys with Low Crack Susceptibility for Additive Manufacturing[J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,2022,53(6):1945-1954.
APA	Yu, Hao,Liang, Jingjing,Bi, Zhongnan,Li, Jinguo,&Xu, Wei.(2022).Computational Design of Novel Ni Superalloys with Low Crack Susceptibility for Additive Manufacturing.METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,53(6),1945-1954.
MLA	Yu, Hao,et al."Computational Design of Novel Ni Superalloys with Low Crack Susceptibility for Additive Manufacturing".METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE 53.6(2022):1945-1954.