Effect of boron addition on microstructure and mechanical properties of an additively manufactured superalloy

doi:10.1007/s42243-022-00825-0

CORC > 金属研究所 > 中国科学院金属研究所

	Effect of boron addition on microstructure and mechanical properties of an additively manufactured superalloy
	Wang, Rui 2,3; Wang, Dao-hong 1; Zhang, Peng 1; Yang, Zhi-qing 3; Liang, Jing-jing 3; Li, Jin-guo 3
刊名	JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL
	2022-08-30
页码	9
关键词	Additive manufacturing Superalloy Boron Grain boundary Stress rupture Tension
ISSN号	1006-706X
DOI	10.1007/s42243-022-00825-0
通讯作者	Li, Jin-guo(jgli@imr.ac.cn)
英文摘要	The effect of boron addition (0.010, 0.015, and 0.020 wt.%) on the microstructure and mechanical properties of an additively manufactured superalloy was examined. The as-built microstructure was investigated by scanning electron microscopy and transmission electron microscopy. The results demonstrate that boron precipitates as M3B2 boride at the grain boundary. The increase in boron content increases the amount of gamma/gamma ' eutectic and the size and fraction of M3B2 boride. Boron creates nanoscale fine borides at grain boundaries, which significantly reinforces grain boundaries. The mechanical property analysis indicated that the addition of boron improved the tensile ductility at 760 degrees C and stress rupture properties at 760 degrees C/780 MPa. However, with the excessive addition of boron, the mechanical property was reduced.
资助项目	National Key Research and Development Program of China[2021YFB3702500] ; National Science and Technology Major Project of China[Y2019-VII-0011-0151] ; National Science and Technology Major Project of China[2019-VII-0019-0161]
WOS研究方向	Metallurgy & Metallurgical Engineering
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000847612600001
资助机构	National Key Research and Development Program of China ; National Science and Technology Major Project of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/175025]
专题	金属研究所_中国科学院金属研究所
通讯作者	Li, Jin-guo
作者单位	1.Jiang Feiyue Machine & Pump Grp Co Ltd, Jingjiang 225300, Jiangsu, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China 3.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Wang, Rui,Wang, Dao-hong,Zhang, Peng,et al. Effect of boron addition on microstructure and mechanical properties of an additively manufactured superalloy[J]. JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL,2022:9.
APA	Wang, Rui,Wang, Dao-hong,Zhang, Peng,Yang, Zhi-qing,Liang, Jing-jing,&Li, Jin-guo.(2022).Effect of boron addition on microstructure and mechanical properties of an additively manufactured superalloy.JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL,9.
MLA	Wang, Rui,et al."Effect of boron addition on microstructure and mechanical properties of an additively manufactured superalloy".JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL (2022):9.