Effect of B and Ce on Microstructure and Properties of Co-8.8Al-9.8W-2Ta Superalloys

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	Effect of B and Ce on Microstructure and Properties of Co-8.8Al-9.8W-2Ta Superalloys
	Xu, Yangtao 1,2,3; Li, Huai 2,3; Ma, Tengfei 2,3; Lv, Xin 2,3
刊名	Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
	2022-03-01
卷号	51 期号:3 页码:921-926
关键词	Binary alloys Cerium Cerium alloys Cobalt alloys Grain boundaries Microhardness Microstructure Tantalum alloys Ternary alloys Tungsten alloys Element mapping Grain boundary regions Matrix alloy Microstructure and properties Property Secondary phase XRD
ISSN号	1002-185X
英文摘要	In order to improve the properties of Co-8.8Al-9.8W-2Ta alloy, effects of adding 0.4at%Ce and 0.4at%B elements on the microstructure and properties of the matrix alloy were studied. Microstructure, EDS element mapping, phase composition and hardness were investigated by SEM, EPMA, XRD and hardness tester. The results show that both Ce and B can inhibit the precipitation of the secondary phase, and spheroidize the secondary phase. Co3W phase is precipitated in the grain boundary region of 0.4Ce alloy, and Ce mainly forms compounds Ce2Co17 and Al2Ce2Co15. Co3W and Co7W6 phases are mainly formed in the grain boundary region of 0.4B alloy, and B element mainly forms compound CoW2B2. Both Ce and B element can improve the microhardness of the alloy, and 0.4Ce alloy shows the highest microhardness (5434 MPa). © 2022, Science Press. All right reserved.
语种	中文
出版者	Science Press
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/158448]
专题	省部共建有色金属先进加工与再利用国家重点实验室
作者单位	1.Baiyin Research Institute of Novel Materials, Lanzhou University of Technology, Baiyin; 730900, China 2.School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou; 730050, China; 3.State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou; 730050, China;
推荐引用方式 GB/T 7714	Xu, Yangtao,Li, Huai,Ma, Tengfei,et al. Effect of B and Ce on Microstructure and Properties of Co-8.8Al-9.8W-2Ta Superalloys[J]. Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering,2022,51(3):921-926.
APA	Xu, Yangtao,Li, Huai,Ma, Tengfei,&Lv, Xin.(2022).Effect of B and Ce on Microstructure and Properties of Co-8.8Al-9.8W-2Ta Superalloys.Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering,51(3),921-926.
MLA	Xu, Yangtao,et al."Effect of B and Ce on Microstructure and Properties of Co-8.8Al-9.8W-2Ta Superalloys".Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering 51.3(2022):921-926.