Repair of K403 Superalloy Damaged Blades by a Powder Metallurgy Method

CORC > 金属研究所 > 中国科学院金属研究所

	Repair of K403 Superalloy Damaged Blades by a Powder Metallurgy Method
	Zhang Jie 1,2; Zhai Yuchun 1; Wang Maocai 2
刊名	RARE METAL MATERIALS AND ENGINEERING
	2015-09-01
卷号	44 期号:9 页码:2222-2227
关键词	powder metallurgy repairing process K403 superalloy blade
ISSN号	1002-185X
通讯作者	Zhai Yuchun(zhaiyc@smm.neu.edu.cn)
英文摘要	The damaged K403 superalloy blades were repaired and remanufactured by a powder metallurgy repairing process (china powder metallurgy, CPM), using nickel-based superalloy powder containing a small amount of B alloy and nano-Ni powder separately. X-ray diffraction, scanning electronic microscope (SEM), EDX, and EPMA electro-probe were employed to investigate the phase composition, morphology and microstructure of the repaired areas. Meanwhile, performances of repairing areas and interface bonding were evaluated. Finally, the mechanism on the densification of repairing areas and the bonding of interface were also examined. The results show that the damaged blades could be restored to the original shape and size by CPM process, using appropriate repairing powder. In addition, it shows better properties using B alloy powder addition for K403 repairing. The diffusion of element B plays a key role in the densification of repairing areas and bonding of interface, in which the reaction equation could be expressed as NimBn+(Cr, W)->gamma+(Cr-2,W)B-2. According to calculation, in the CPM process, the concentration of element B in the interface could be decreased to below the eutectic concentration.
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	NORTHWEST INST NONFERROUS METAL RESEARCH
WOS记录号	WOS:000362612500027
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/120897]
专题	金属研究所_中国科学院金属研究所
通讯作者	Zhai Yuchun
作者单位	1.Northeastern Univ, Shenyang 110819, Peoples R China 2.Chinese Acad Sci, State Key Lab Corros & Protect, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Zhang Jie,Zhai Yuchun,Wang Maocai. Repair of K403 Superalloy Damaged Blades by a Powder Metallurgy Method[J]. RARE METAL MATERIALS AND ENGINEERING,2015,44(9):2222-2227.
APA	Zhang Jie,Zhai Yuchun,&Wang Maocai.(2015).Repair of K403 Superalloy Damaged Blades by a Powder Metallurgy Method.RARE METAL MATERIALS AND ENGINEERING,44(9),2222-2227.
MLA	Zhang Jie,et al."Repair of K403 Superalloy Damaged Blades by a Powder Metallurgy Method".RARE METAL MATERIALS AND ENGINEERING 44.9(2015):2222-2227.