Diamond-like carbon (DLC) coatings were deposited on Si(100) and stainless steel substrates by laser induced high current pulsed arc (LIHCPA) system, A Pulsed current more than 1 kA was generated oil the target in order to make DLC coatings have higher hardness and denser structure. The experimental results have shown that the are current had strong influence on the hardness and sp(3) content of the DLC coatings. It has been observed that when the are current was raised from 1 kA to 4 kA, the hardness increased from 28 GPa to 52 GPa, and the sp(3) fraction of the DLC Films measured by XPS increased from 47% to 61% accordingly. The corrosion behavior of DLC coatings were also studied in 0.5 M H(2)SO(4) solution by using potentiodynamic polarization method. These results reveal that DLC coatings on stainless steel exhibited excellent corrosion behavior especially in lower corrosion current which was less than 4 x 10(-7) A/cm(2). (C) 2008 Elsevier B.V. All rights reserved.