Ti-SiC Composite and TiC Ceramic Layer Formation on Ti6Al4V Surface by Laser Alloying of Pre-Placed SiC Coating
Source: Advanced Performance Materials, Volume 6, Number 1, May 1999 , pp. 71-83(13)
Abstract:The Ti-6Al-4V alloy pre-placed with SiC coating was laser alloyed using high power CO2 laser. The laser alloyed cross section shows dendrite and Ti-SiC composite layer microstructure and the respective hardness was 650–800 HV and 1500–2000 HV. The observed hardness was 2 to 7 times greater than that measured on the bulk Ti-6Al-4V substrate. The laser alloyed surface produced high temperature ceramic phases such as TiC, TiSi and Ti5Si3. The elemental analysis was qualitatively estimated using SIMS analysis.
Document Type: Regular Paper
Publication date: May 1, 1999