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

doi:10.1007/s42243-022-00825-0

IMR OpenIR

	Effect of boron addition on microstructure and mechanical properties of an additively manufactured superalloy
	Wang, Rui 1,2; Wang, Dao-hong 3; Zhang, Peng 3; Yang, Zhi-qing 1; Liang, Jing-jing 1; Li, Jin-guo 1
通讯作者	Li, Jin-guo(jgli@imr.ac.cn)
	2022-08-30
发表期刊	JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL
ISSN	1006-706X
页码	9
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.
关键词	Additive manufacturing Superalloy Boron Grain boundary Stress rupture Tension
资助者	National Key Research and Development Program of China ; National Science and Technology Major Project of China
DOI	10.1007/s42243-022-00825-0
收录类别	SCI
语种	英语
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
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000847612600001
出版者	SPRINGER
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/175026
专题	中国科学院金属研究所
通讯作者	Li, Jin-guo
作者单位	1.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China 3.Jiang Feiyue Machine & Pump Grp Co Ltd, Jingjiang 225300, Jiangsu, 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.