DIODE LASER SURFACE ALLOYING OF ARMOR STEEL WITH TUNGSTEN CARBIDE

被引：9
|
作者：
Janicki, D. [1 ]
Gorka, J. [1 ]
Kwasny, W. [2 ]
Golombek, K. [2 ]
Kondracki, M. [3 ]
Zuk, M. [1 ]
机构：
[1] Silesian Tech Univ, Fac Mech Engn, Welding Dept, 18A Konarskiego Str, PL-44100 Gliwice, Poland
[2] Silesian Tech Univ, Fac Mech Engn, Inst Engn Mat & Biomat, 18A Konarskiego Str, PL-44100 Gliwice, Poland
[3] Silesian Tech Univ, Fac Mech Engn, Dept Foundry Engn, 18A Konarskiego Str, PL-44100 Gliwice, Poland
来源：
ARCHIVES OF METALLURGY AND MATERIALS | 2017年 / 62卷 / 02期
关键词：
laser surface alloying; diode laser; armor steel; metal matrix composite; tungsten carbide; PERFORMANCE; COATINGS;
D O I：
10.1515/amm-2017-0072
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Metal matrix composite (MMC) surface layers reinforced by WC were fabricated on armor steel ARMOX 500T plates via a laser surface alloying process. The microstructure of the layers was assessed by scanning electron microscopy and X-ray diffraction. The surface layers having the WC fraction up to 71 vol% and an average hardness of 1300 HV were produced. The thickness of these layers was up to 650 mu m. The addition of a titanium powder in the molten pool increased the wettability of WC particles by the liquid metal in the molten pool increasing the WC fraction. Additionally, the presence of titanium resulted in the precipitation of the (Ti,W)C phase, which significantly reduced the fraction of W-rich complex carbides and improved a structural integrity of the layers.
引用
收藏
页码：473 / 481
页数：9
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