TY - JOUR JF - Journal of Alloys and Compounds SP - 4882 PB - Elsevier TI - Phase constituents and microstructure of laser cladding Al2O3/Ti3Al reinforced ceramic layer on titanium alloy UR - http://www.sciencedirect.com/science/article/pii/S0925838811002842 SN - 0925-8388 EP - 4886 Y1 - 2011/// AV - none ID - eprints2809 KW - X-ray diffraction IS - 14 A1 - Li, Jianing A1 - Chen, Chuanzhong A1 - Lin, Zhaoqing A1 - Squartini, Tiziano VL - 509 N2 - Laser cladding of the Fe3Al + TiB2/Al2O3 pre-placed alloy powder on Ti?6Al?4V alloy can form the Ti3Al/Fe3Al + TiB2/Al2O3 ceramic layer, which can greatly increase wear resistance of titanium alloy. In this study, the Ti3Al/Fe3Al + TiB2/Al2O3 ceramic layer has been researched by means of electron probe, X-ray diffraction, scanning electron microscope and micro-analyzer. In cladding process, Al2O3 can react with TiB2 leading to formation of amount of Ti3Al and B. This principle can be used to improve the Fe3Al + TiB2 laser cladded coating, it was found that with addition of Al2O3, the microstructure performance and micro-hardness of the coating was obviously improved due to the action of the Al?Ti?B system and hard phases. ER -