Combustion Behavior of GH4061 Alloy in High Pressure and Oxygen-Enriched Atmosphere

doi:10.11900/0412.1961.2022.00551

IMR OpenIR

	Combustion Behavior of GH4061 Alloy in High Pressure and Oxygen-Enriched Atmosphere
	Cao Shuting 1,2; Zhang Shaohua 1; Zhang Jian 1
通讯作者	Zhang Shaohua(zhangshaohua@imr.ac.cn) ; Zhang Jian(jianzhang@imr.ac.cn)
	2023-04-11
发表期刊	ACTA METALLURGICA SINICA
ISSN	0412-1961
卷号	59 期号:4 页码:547-555
摘要	Liquid oxygen (LOX)/kerosene rocket engines are the main power system of heavy launch vehicles around the globe, and the turbine materials are usually exposed to elevated temperatures, high pressure, and oxygen-enriched environment in gas generators. Metal combustion may occur under these working conditions. GH4061 is a newly developed Ni-based superalloy that is used in turbine materials because of its excellent mechanical properties. However, its combustion resistance property has rarely been studied. Recently, several studies on metal combustion have been conducted, but they mainly focus on exploring the rules of metal combustion. Furthermore, the domestically promoted ignitioncombustion (PIC) experiment equipment only supports the test under 2 MPa pressure, which has significantly limited the study of metal combustion at higher pressure. Therefore, the analysis of the metal combustion mechanism remains incomplete. In this study, the 3.5-25 MPa high pressure and oxygenenriched combustion experiments of GH4061 alloy were performed on the basis of independentlydeveloped PIC equipment with a maximum pressure of 25 MPa. A high-speed camera was used to observe and record the combustion process. The postcombustion microstructure was characterized using SEM and EDS, and the combustion product was identified using XRD. The length and rate of burning increase as the oxygen pressure increases. The critical burning pressure of GH4061 under 99.5% oxygen (when igniting at 25 degrees C) is about 5 MPa, according to ASTM-G124. After testing, the transition zone, melting zone, ignition interface, and oxide zone in the samples were characterized. The burning process is due to elements with a higher heat of combustion. During combustion, lower-density molten oxides float up to the melting zone. After testing, small O/Al/Ti-rich particles and large complex oxide particles with dendritic morphology were observed in the melting zone. The effect of oxygen pressure was analyzed using thermodynamics.
关键词	metal combustion high pressure oxygen-enriched superalloy combustion mechanism
资助者	National Natural Science Foundation of China ; Key Research Program of Chinese Academy of Sciences
DOI	10.11900/0412.1961.2022.00551
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[52150233] ; Key Research Program of Chinese Academy of Sciences
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000980757300011
出版者	SCIENCE PRESS
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/177732
专题	中国科学院金属研究所
通讯作者	Zhang Shaohua; Zhang Jian
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Cao Shuting,Zhang Shaohua,Zhang Jian. Combustion Behavior of GH4061 Alloy in High Pressure and Oxygen-Enriched Atmosphere[J]. ACTA METALLURGICA SINICA,2023,59(4):547-555.
APA	Cao Shuting,Zhang Shaohua,&Zhang Jian.(2023).Combustion Behavior of GH4061 Alloy in High Pressure and Oxygen-Enriched Atmosphere.ACTA METALLURGICA SINICA,59(4),547-555.
MLA	Cao Shuting,et al."Combustion Behavior of GH4061 Alloy in High Pressure and Oxygen-Enriched Atmosphere".ACTA METALLURGICA SINICA 59.4(2023):547-555.