Effect of Carbon on the Microstructures and Mechanical Properties of a Ni-Based Superalloy with High W Content

doi:10.1007/s11665-022-06833-1

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	Effect of Carbon on the Microstructures and Mechanical Properties of a Ni-Based Superalloy with High W Content
	Jiang, Kuo 1; Sheng, Naicheng 2; Sun, Shijie 2; Fan, Shigang 2; Yu, Jinjiang 2; Li, Jinguo 2; Yang, Lin 1; Hou, Guichen 2; Zhou, Yizhou 2; Sun, Xiaofeng 2
刊名	JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
	2022-04-11
页码	11
关键词	alpha-W carbon microstructure mechanical property Ni-based superalloy primary M6C
ISSN号	1059-9495
DOI	10.1007/s11665-022-06833-1
通讯作者	Sheng, Naicheng(ncsheng@imr.ac.cn)
英文摘要	The microstructures and mechanical properties of experimental Ni-based superalloys K416B with high tungsten (W) content and various carbon (C) contents were studied. The results revealed that C addition led to a decrease in the size and volume fraction of eutectic (gamma + gamma') phase. With the increase in C content, the volume fraction and size of MC carbides increased, and an interdendritic network of carbides evolved more prominently. The carbide network occupied most of the interdendritic area and exhibited "dendrite" form. The grain size of the alloy decreased significantly with the increase in C content. The precipitation of alpha-W is observed in the alloys without C, while M6C carbides formed when the C content was raised to 0.27 wt.%. No significant change in tensile properties of the alloy when the carbon content increases from 0 to 0.1 wt.%, when the carbon content is increased to 0.27 wt.% the tensile properties of the alloy decrease significantly. With increasing C content, the stress rupture properties increase. Eutectic and grain boundaries are the weak areas in the stress rupture properties process. As the carbon content increases the eutectic content of the alloy decreases, the grain size increases and grain boundaries decreased. Therefore, the stress rupture properties of the alloy improved. The presence of a large amount of primary M6C reduced the tensile properties of the alloy because the brittle phases in primary M6C were generated as the carbon content increased, and the primary M6C was first fractured during tensile testing.
WOS研究方向	Materials Science
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000780746500004
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/172921]
专题	金属研究所_中国科学院金属研究所
通讯作者	Sheng, Naicheng
作者单位	1.Shenyang Univ Technol, Sch Mat Sci & Engn, Shenyang 110870, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Jiang, Kuo,Sheng, Naicheng,Sun, Shijie,et al. Effect of Carbon on the Microstructures and Mechanical Properties of a Ni-Based Superalloy with High W Content[J]. JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,2022:11.
APA	Jiang, Kuo.,Sheng, Naicheng.,Sun, Shijie.,Fan, Shigang.,Yu, Jinjiang.,...&Sun, Xiaofeng.(2022).Effect of Carbon on the Microstructures and Mechanical Properties of a Ni-Based Superalloy with High W Content.JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,11.
MLA	Jiang, Kuo,et al."Effect of Carbon on the Microstructures and Mechanical Properties of a Ni-Based Superalloy with High W Content".JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE (2022):11.