Microstructure of MC-Fe Composite Layer on Carbon Steel by Laser Surface Alloying

被引：1

作者：

Yamaguchi, Takuto ^{[1
,2
]}

Hagino, Hideki ^{[1
]}

Takemura, Mamoru ^{[1
]}

Nakahira, Atsushi ^{[2
]}

机构：

[1] Technol Res Inst Osaka Prefecture, Izumi, Osaka 5941157, Japan

[2] Osaka Prefecture Univ, Sakai, Osaka 5998531, Japan

来源：

JOURNAL OF LASER MICRO NANOENGINEERING | 2014年 / 9卷 / 02期

关键词：

laser surface alloying; microstructure; metal matrix composite; carbide; steel; TI-6AL-4V; COATINGS; MMC;

D O I：

10.2961/jlmn.2014.02.0001

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Laser alloying using carbide forming elements (Ti, Nb, and V) was carried out to form an MCFe composite coating on a carbon steel substrate for improving wear resistance. The microstructure of laser alloyed zone was studied by OM, SEM/EDS, STEM, and XRD to reveal the effect of additional elements and laser alloying conditions on the distribution of carbides. The laser alloyed zone was found to consist of MC carbide and iron matrix. Hardness and wear properties of the laser alloyed zone were improved as compared with the laser transformation hardened sample. Dispersion of carbide within the laser alloyed zone is shown to be effective in decreasing the friction coefficient and improving wear resistance.

引用

页码：83 / 87

页数：5

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