Fabrication and characterizations of electrospark coating on aluminum alloy substrate

被引：0
作者：
Guo, F. [1 ]
Hao, J. Z. [1 ]
Li, P. [2 ]
机构：
[1] Jiangan Dist, Wuhan, Peoples R China
[2] Xian Hitech Res Inst, Xian, Peoples R China
来源：
Manufacturing and Engineering Technology | 2015年
关键词：
aluminum alloy; electrospark alloying; composite coating; microhardness;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Using TA2 as electrode, electrospark composite coating was fabricated on 2A12 aluminum alloys surface by electrospark alloying process in air. The microstructure, phase construction, element distribution, and microhardness of the composite coating are presented. The composite coating is continuous and close, which forms metallurgical bonding to the substrate. It consists of Ti-Al intermetallic compounds and a small amount of Ti/Al oxides and nitrides. The content of elements obtained from electrode decreases along the depth direction, contrary to that of elements obtained from 2A12 substrate. Accordingly, the microhardness of cross-section of the composite coating decreases along the depth direction.
引用
收藏
页码：553 / 555
页数：3
相关论文
共 6 条
[1]   Microstructure and Properties of Ti-Al Based Composite Coating Prepared by Electrospark Deposition Process [J].
Guo Feng ;
Su Xun-jia ;
Li Ping ;
Hou Gen-liang ;
Mei Zhen-xing .
MULTI-FUNCTIONAL MATERIALS AND STRUCTURES II, PTS 1 AND 2, 2009, 79-82 :1611-1614
[2]  
Hao Jianjun, 2009, China Welding, V18, P46
[3]  
Wang R.J., 2004, CHINA WELDING, V13, P61
[4]   Microstructural morphology of electrospark deposition layer of a high gamma prime superalloy [J].
Xie, Yu-jiang ;
Wang, Mao-cai .
SURFACE & COATINGS TECHNOLOGY, 2006, 201 (3-4) :691-698
[5]  
Zainul H., 2009, MATER CHEM PHYS, V113, P515
[6]   Anodic films containing polyaniline and nanoparticles for corrosion protection of AA2024T3 aluminium alloy [J].
Zubillaga, O. ;
Cano, F. J. ;
Azkarate, I. ;
Molchan, I. S. ;
Thompson, G. E. ;
Skeldon, P. .
SURFACE & COATINGS TECHNOLOGY, 2009, 203 (10-11) :1494-1501
1