Stress corrosion crack growth behavior of a low alloy steel in 3.0% NaCl solution

摘要: Stress corrosion crack growth behavior of a low alloy steel in 3.0% NaCl solution was studied. The investigation also examines the influence initial stress intensity factor (Ki) and overload plastic zone size on incubation period rate. Compact tension specimens with (TL) orientation prepared from SAE 4140 hardened tempered condition were used. To examine overload, initially fatigue precracked overloaded to various levels, namely 10, 25, 50% more than levels at two different (Ki= 28 46 MPa√m) unloaded. these studied after reloading them their (i.e., Ki = MPa√m, respectively) keeping submerged solution.