Preparation and Tribological Properties of NiCrBSiC Reinforced Laser Alloying Layer

Abstract

This work is based on dry sliding wear of an NiCrBSiC-reinforced layer deposited on Ti-3Al-2V alloy using the laser alloying technique, the parameters of which could provide almost crack-free layers with minimum dilution and very low porosity. Scanning electron microscopy (SEM) images indicated that a laser alloying layer with a metallurgical joint to the substrate was formed. Compared to Ti-3Al-2V substrate, an improvement in wear resistance was observed for the alloying layer. In addition, the friction and wear behavior of the laser alloying layer was highly dependent on the applied normal load and sliding speed.

KEY WORDS:

• Laser Alloying Technique
• Surfaces
• Titanium Alloys

Acknowledgments

Review led by Hong Liang