Repair of K403 Superalloy Damaged Blades by a Powder Metallurgy Method

IMR OpenIR

	Repair of K403 Superalloy Damaged Blades by a Powder Metallurgy Method
	Zhang Jie 1,2; Zhai Yuchun 1; Wang Maocai 2
通讯作者	Zhai Yuchun(zhaiyc@smm.neu.edu.cn)
	2015-09-01
发表期刊	RARE METAL MATERIALS AND ENGINEERING
ISSN	1002-185X
卷号	44 期号:9 页码:2222-2227
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.
关键词	powder metallurgy repairing process K403 superalloy blade
收录类别	SCI
语种	英语
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000362612500027
出版者	NORTHWEST INST NONFERROUS METAL RESEARCH
引用统计	被引频次：1[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/321006/120898
专题	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.