Effect of Sulfur on Microstructures and Solidification Characteristics of a Nickel-Base Single Crystal Superalloy

doi:10.1007/s12540-022-01193-w

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	Effect of Sulfur on Microstructures and Solidification Characteristics of a Nickel-Base Single Crystal Superalloy
	Chen, Shaofeng 2,3; Sheng, Naicheng 1,3; Fan, Shigang 3; Sun, Shijie 3; Hou, Guichen 3; Li, Jinguo 3; Liu, Lirong 2; Zhou, Yizhou 3; Sun, Xiaofeng 3
刊名	METALS AND MATERIALS INTERNATIONAL
	2022-06-09
页码	10
关键词	Nickel-based single crystal superalloy Sulfur doping Microstructure Solidification
ISSN号	1598-9623
DOI	10.1007/s12540-022-01193-w
通讯作者	Sheng, Naicheng(ncsheng@imr.ac.cn)
英文摘要	The effects of sulfur on the microstructures and solidification characteristics of a second-generation single crystal superalloy were clarified through optical microscope (OM), scanning electron microscope (SEM), differential scanning calorimetry (DSC) and electron probe microanalysis (EPMA). When sulfur was added to the alloy, the area fraction of the eutectic and microporosity decreased with the area fraction of MC carbides increasing. The gamma / gamma' eutectic morphology changed from mosaic + fan + coarse gamma' to mosaic + fan as the sulfur content increased, and very few gamma / gamma' eutectic was found in the alloy with the highest sulfur content. Moreover, sulfur tended to segregate at the interdendritic regions and form Hf / Cr- rich sulfides, which were adjacent to the carbides or eutectic. This work not only uncovers some sulfides wrapped by eutectic or carbides, but also presents the solidification sequence of the interdendritic regions in high sulfur content alloy was discussed.
资助项目	Innovation Academy for light-duty Gas Turbine, Chinese Academy of Sciences[CXYJJ20-QN-02] ; Natural Science Foundation of Liaoning Province[2020-MS-014] ; Chinese Academy of Sciences Talent Program Project
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	KOREAN INST METALS MATERIALS
WOS记录号	WOS:000808411300002
资助机构	Innovation Academy for light-duty Gas Turbine, Chinese Academy of Sciences ; Natural Science Foundation of Liaoning Province ; Chinese Academy of Sciences Talent Program Project
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/174275]
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.Chinese Acad Sci, Innovat Acad Light Duty Gas Turbine, Beijing 100190, Peoples R China 2.Shenyang Univ Technol, Sch Mat Sci & Technol, Shenyang 110870, Peoples R China 3.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	Chen, Shaofeng,Sheng, Naicheng,Fan, Shigang,et al. Effect of Sulfur on Microstructures and Solidification Characteristics of a Nickel-Base Single Crystal Superalloy[J]. METALS AND MATERIALS INTERNATIONAL,2022:10.
APA	Chen, Shaofeng.,Sheng, Naicheng.,Fan, Shigang.,Sun, Shijie.,Hou, Guichen.,...&Sun, Xiaofeng.(2022).Effect of Sulfur on Microstructures and Solidification Characteristics of a Nickel-Base Single Crystal Superalloy.METALS AND MATERIALS INTERNATIONAL,10.
MLA	Chen, Shaofeng,et al."Effect of Sulfur on Microstructures and Solidification Characteristics of a Nickel-Base Single Crystal Superalloy".METALS AND MATERIALS INTERNATIONAL (2022):10.