Influence Mechanism of Silicon on Carbide Phase Precipitation of a Corrosion Resistance Nickel Based Superalloy

doi:10.3390/ma13040959

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	Influence Mechanism of Silicon on Carbide Phase Precipitation of a Corrosion Resistance Nickel Based Superalloy
	Liu, T ; Yang, M ; Han, FF ; Dong, JS
刊名	MATERIALS
	2020
卷号	13 期号:4 页码:-
关键词	STRESS-RUPTURE PROPERTIES TERM THERMAL EXPOSURE MICROSTRUCTURAL EVOLUTION HEAT-TREATMENT ALLOY REDISTRIBUTION DECOMPOSITION DISSOLUTION BEHAVIORS CEMENTITE
ISSN号	1996-1944
DOI	10.3390/ma13040959
文献子类	期刊论文
英文摘要	The effect of silicon on diffusion behavior of the carbide forming elements in Ni-Mo-Cr-Fe based corrosion-resistant alloy is studied by diffusion couple experiment. One group of diffusion couples are made of the alloy with a different silicon content, another group of diffusion couples are made of pure nickel and the alloy with different silicon content (0Si, 2Si). Two groups of alloys with same silicon content and different carbon content are also prepared, the microstructure of solution and aging state of these two groups alloys are analyzed, and their stress rupture properties are tested. The effect of silicon on the diffusion of alloy elements and the interaction effect of carbon and silicon on the microstructure and stress rupture properties of the alloy are analyzed. The mechanism of Si on the precipitation behavior of carbide phase in Ni-Mo-Cr-Fe corrosion resistant alloy is discussed. The results show that silicon can promote the diffusion of carbide forming elements and the formation of carbide. The precipitation behavior of the secondary phase is the result of the interaction effect of silicon and carbon, and is related to the thermal history of the alloy. Combined with the characteristic of primary carbides, it is confirmed that the precipitation of M12C type secondary carbide is caused by the relative lack of carbon element and the relative enrichment of carbide forming elements such as molybdenum. The stress rupture properties of two silicon-containing alloys with different carbon contents in solution and aging state are tested. The stress rupture life of low carbon alloy is lower compared with high carbon alloy at solution state, but after aging treatment, the stress rupture life of low carbon alloy is significantly improved, and higher than that of high carbon alloy. The main aim of this research is to reveal the influence mechanism of silicon on carbide phase precipitation of a Ni-Mo-Cr-Fe based corrosion-resistant superalloy, which provides theoretical basis and reference for later alloy design and engineering application.
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/32935]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
作者单位	1.Jiangsu Univ Technol, Sch Mat Engn, Changzhou 213001, Jiangsu, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 3.Shanghai Inst Appl Phys, Chinese Acad Sci, Shanghai 201800, Peoples R China
推荐引用方式 GB/T 7714	Liu, T,Yang, M,Han, FF,et al. Influence Mechanism of Silicon on Carbide Phase Precipitation of a Corrosion Resistance Nickel Based Superalloy[J]. MATERIALS,2020,13(4):-.
APA	Liu, T,Yang, M,Han, FF,&Dong, JS.(2020).Influence Mechanism of Silicon on Carbide Phase Precipitation of a Corrosion Resistance Nickel Based Superalloy.MATERIALS,13(4),-.
MLA	Liu, T,et al."Influence Mechanism of Silicon on Carbide Phase Precipitation of a Corrosion Resistance Nickel Based Superalloy".MATERIALS 13.4(2020):-.