Nano-reinforcing Composite Coatings Fabricated by Laser Internal Nitridation

IMR OpenIR

	Nano-reinforcing Composite Coatings Fabricated by Laser Internal Nitridation
	W. F. Wang; X. Le Hu; Y. G. Zheng
	2014
发表期刊	Integrated Ferroelectrics
ISSN	1058-4587
卷号	153 期号:1 页码:113-119
摘要	The internal nitridation composite coatings with in-suit synthesis nano particulates were fabricated by laser cladding on titanium alloy substrate for investigating the formation mechanisms and performances. The microstructures, phase composition and mechanical property were studied by SEM, XRD, micro-hardness tests and cavitation erosion tests. The results show that, Ti2N reinforcing particulates are in the size of similar to 50 nm and disperse homogeneously in the alpha-Ti matrix. As a result, the average hardness of the laser internal nitridation coating is 371.4 HV which is about 23.8% higher than that of the substrate. The analysis indicates that, the difficulty of long range diffusion of atoms and the in-suit precipitation from the parent grains in solid state are the reason why Ti2N are only of similar to 50 nm diameters. For 6h cavitation erosion tests, the cumulative volume loss of internal nitridation sample is only similar to 62.7% of the substrate, which shows well prospect for application.
部门归属	[wang, wei fu ; le hu, xiao] zhejiang univ technol, key lab e&m, minist educ & zhejiang prov, hangzhou 310014, zhejiang, peoples r china. [zheng, yu gui] chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china. [wang, wei fu ; le hu, xiao] zhejiang univ technol, coll mech engn, hangzhou 310014, zhejiang, peoples r china. ; zheng, yg (reprint author), chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china. ; wwfphd@aliyun.com
关键词	Ti-n Composites Laser Internal Nitridation Nano Particulate Cavitation Erosion
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/72921
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	W. F. Wang,X. Le Hu,Y. G. Zheng. Nano-reinforcing Composite Coatings Fabricated by Laser Internal Nitridation[J]. Integrated Ferroelectrics,2014,153(1):113-119.
APA	W. F. Wang,X. Le Hu,&Y. G. Zheng.(2014).Nano-reinforcing Composite Coatings Fabricated by Laser Internal Nitridation.Integrated Ferroelectrics,153(1),113-119.
MLA	W. F. Wang,et al."Nano-reinforcing Composite Coatings Fabricated by Laser Internal Nitridation".Integrated Ferroelectrics 153.1(2014):113-119.