作用応力下における表面硬さの異なるS60C炭素鋼の腐食挙動

抄録

This study was aimed to examine the anodic polarization curve under various applied stresses and the state of pit formation for the high carbon steel S60C with different surface hardness in corrosive solution.
The main results obtained are summerized as follows.
1) The specimen with higher surface hardness indicate the increase rate of anodic current becomes larger with increasing applied stress.
2) When the specimens have a higher surface hardness and formed unstable surface stractures due to deviation of Cementite, the possibility becomes more larger that the fracture may be caused by corrosion phenomenon.