... composed of ferum Journal of Physical Science, Vol. 18(1), 75–85, 2007 75 WEAR MECHANISM OF TiN, TiAlN AND TiCN COATED DRILLS DURING DRILLING OF CARBON STEEL R.J. Talib*, M.R.M. Toff and ... piece as a result of broken cutting lip and land, and blunting-off chisel wedge. 6. ACKNOWLEDGEMENTS The authors are grateful to the Government of Malaysia for the funding of this research. ... which have low boiling temperatures such as Mn and P might have depleted away and could not be detected by spot EDX analysis. Boiling temperature of Mn and P is about 1246°C and 44.1°C, respectively....