Abstract
The development of ceramic coating to metals was stimulated by the need for high temperature, wear and corrosion resistant materials. Recently TiC is used as a ceramic coating material.
In the present study, the X-ray method was successfully applied to measure the residual stress distribution in TiC coated steels. The X-ray elastic constants were determined and compared with the mechanically measured values.
The results obtained are summarized as follows;
(1) The X-ray elastic constants determined were
As-coated: S1=3.97×10-4(GPa-1), S2/2=2.92×10-3(GPa-1)
Quenched: S2/2=1.89×10-3(GPa-1)
Annealed: S2/2=2.07×10-3(GPa-1)
Quenched and Tempered: S2/2=1.13×10-3(GPa-1) for TiC (113) phase.
And As-coated Ex-ray was 397(GPa) which was lower than the mechanically determined value of 421(GPa), respectively.
(2) The residual stress distribution determined by the X-ray method indicated high compressive stress above -1.5--3.5(GPa) in the TiC layer.
