In-situ formation of TIC reinforced intermetallic-matrix composite layers produced by laser cladding

doi:10.4028/0-87849-410-3.1380

	In-situ formation of TIC reinforced intermetallic-matrix composite layers produced by laser cladding
	Fan, Ding 1,2; Zhang, Jian-Bin 2; Sun, Yao-Ning 2; Dai, Jing-Jie 2; Fu, Rui 2
	2007
关键词	Energy dispersive spectroscopy Interfaces (materials) Laser cladding Microhardness Scanning electron microscopy Superalloys Titanium carbide X ray diffraction analysis In-situ formation Metallurgical interface Superalloy substrates
卷号	336-338 II
DOI	10.4028/0-87849-410-3.1380
页码	1380-1382
英文摘要	Laser cladding technique was used to form Ni3(Si,Ti) intermetallic composite coating reinforced by in-situ formation TiC particles on Ni-based superalloy substrate. The experimental results showed that an excellent bonding between the coating and the substrate was ensured by a strong metallurgical interface. The clad coating was very well and free from cracks and pores. By means of scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), and X-ray diffraction (XRD), the effect of Ti-C addition to the microstructure and microhardness of the coating was investigated. The microstructure of the coating was mainly composed of Ni(Si), Ni 3(Si,Ti) and TiC. The average microhardness of the coating was improved with increasing the Ti-C content. The microhardness was up to 780Hv when Ti-C addition was 20 wt. pct, which was much greater than that of Ni-based superalloy substrate.
会议录	Key Engineering Materials
会议录出版者	Trans Tech Publications Ltd
语种	英语
ISSN号	10139826
内容类型	会议论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/117065]
专题	材料科学与工程学院省部共建有色金属先进加工与再利用国家重点实验室
作者单位	1.Key Laboratory of Non-ferrous Metal Alloys, Ministry of Education, Lanzhou University of Technology, Lanzhou 730050, China 2.State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Lanzhou University of Technology, Lanzhou 730050, China;
推荐引用方式 GB/T 7714	Fan, Ding,Zhang, Jian-Bin,Sun, Yao-Ning,et al. In-situ formation of TIC reinforced intermetallic-matrix composite layers produced by laser cladding[C]. 见:.