Laser surface alloying of molybdenum on aluminum for enhanced wear resistance

被引：37
|
作者：
Rajamure, Ravi Shanker [1 ]
Vora, Hitesh D. [1 ]
Gupta, Niraj [1 ]
Karewar, Shivraj [1 ]
Srinivasan, S. G. [1 ]
Dahotre, Narendra B. [1 ]
机构：
[1] Univ N Texas, Dept Mat Sci & Engn, Lab Laser Aided Addit & Subtract Mfg, Denton, TX 76203 USA
来源：
SURFACE & COATINGS TECHNOLOGY | 2014年 / 258卷
关键词：
Laser surface engineering; Wear resistance; Coatings; Intermetallic; Surface modification; Aluminum; CORROSION-RESISTANCE; MICROSTRUCTURE; OPTIMIZATION; ENERGY;
D O I：
10.1016/j.surfcoat.2014.08.074
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A continuous diode pumped ytterbium laser was used for alloying of molybdenum on Al 1100 to improve its wear resistance. Microstructural and phase analysis was conducted using scanning electron microscopy and X-ray diffraction analysis. Dry wear sliding studies using a pin on disk apparatus at room temperature under a constant normal load of 9 N indicated the increase in wear resistance of laser alloyed coatings. The enhancement in the wear resistance is mainly due to the presence of Al8Mo3 and Al5Mo intermetallic phases within the alloyed surface and their superior physical properties predicted by the first principle calculations. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：337 / 342
页数：6
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