Powder plasma arc additive manufacturing of (AlTi)2x(CoCrNi)100-2x medium-entropy alloys: Microstructure evolution and mechanical properties

doi:10.1016/j.jallcom.2023.172474

IMR OpenIR

	Powder plasma arc additive manufacturing of (AlTi)2x(CoCrNi)100-2x medium-entropy alloys: Microstructure evolution and mechanical properties
	Luo, Jinle 1; Chen, Xizhang 1; Deev, Vladislav B.2,3,4; Wen, Ming 4; Shen, Yong 5; Konovalov, Sergey 1,6
通讯作者	Chen, Xizhang(chenxizhang@wzu.edu.cn) ; Wen, Ming()
	2024-01-05
发表期刊	JOURNAL OF ALLOYS AND COMPOUNDS
ISSN	0925-8388
卷号	970 页码:11
摘要	In this work the effects of Al and Ti element addition on the microstructure and mechanical properties of CoCrNi medium-entropy alloys (MEAs) has been investigated. A novel (AlTi)2x(CoCrNi)100-2x MEAs was fabricated by using powder plasma arc additive manufacturing technique. The influences of Al and Ti elements on the microstructure, mechanical properties and strengthening mechanisms were analyzed by XRD, EBSD and TEM. The (AlTi)2x(CoCrNi)100-2x MEAs exhibited columnar crystal structure, but the average grain size and texture decreased continuously with increasing values of x. Moreover, tensile test results showed that (CoCrNi)90Al5Ti5 alloy possessed strength-ductility balance (yield strength, ultimate tensile strength and elongation to failure of 664 MPa, 897 MPa and 19.3 %, respectively). The analysis on the strengthening mechanism showed that the solid solution strengthening effect was more dominant with increasing of the x in all alloys. (CoCrNi)94Al3Ti3 and (CoCrNi)90Al5Ti5 have similar average grain sizes, wherein the difference in mechanical properties between both the alloys can be mainly attributed to the formation of fine grain sizes. (CoCrNi)90Al5Ti5 has a small amount of dislocations, solid solution strengthening and grain boundary strengthening are the main sources of the excellent properties.
关键词	Additive manufacturing Directed energy deposition Medium-entropy alloys Microstructure Mechanical properties
资助者	National Natural Science Foundation of China ; Scientific Research Fund of Zhejiang Provincial Education Department
DOI	10.1016/j.jallcom.2023.172474
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51975419] ; Scientific Research Fund of Zhejiang Provincial Education Department[Y202248963]
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001101305000001
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：5[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/321006/177352
专题	中国科学院金属研究所
通讯作者	Chen, Xizhang; Wen, Ming
作者单位	1.Wenzhou Univ, Coll Mech & Elect Engn, Wenzhou 325035, Peoples R China 2.Wenzhou Jinghe Intelligent Mfg Sci & Technol Co, Wenzhou 325035, Peoples R China 3.Natl Univ Sci & Technol MISiS, Dept Met Forming, Moscow 119049, Russia 4.Kunming Inst Precious Met, State Key Lab Adv Technol Comprehens Utilizat Plat, Kunming 650106, Peoples R China 5.Chinese Acad Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China 6.Siberian State Ind Univ, Novokuznetsk 654007, Russia
推荐引用方式 GB/T 7714	Luo, Jinle,Chen, Xizhang,Deev, Vladislav B.,et al. Powder plasma arc additive manufacturing of (AlTi)2x(CoCrNi)100-2x medium-entropy alloys: Microstructure evolution and mechanical properties[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2024,970:11.
APA	Luo, Jinle,Chen, Xizhang,Deev, Vladislav B.,Wen, Ming,Shen, Yong,&Konovalov, Sergey.(2024).Powder plasma arc additive manufacturing of (AlTi)2x(CoCrNi)100-2x medium-entropy alloys: Microstructure evolution and mechanical properties.JOURNAL OF ALLOYS AND COMPOUNDS,970,11.
MLA	Luo, Jinle,et al."Powder plasma arc additive manufacturing of (AlTi)2x(CoCrNi)100-2x medium-entropy alloys: Microstructure evolution and mechanical properties".JOURNAL OF ALLOYS AND COMPOUNDS 970(2024):11.