EFFECT OF CRACK FORMATION TECHNIQUE ON THE RESULTS OF TESTING FOR CORROSION CRACKING

Comparative testing of flat 30KhGSN2A steel samples with fatigue and c orrosion cracks for corrosion cracking were carried out in distilled w ater, a saturated solution of inhibitor (strontium chromate), and in a 0.01 M solution of sodium chloride (concentrated bend loading with si gma(b) = 1450 MPa). The time intervals before sample cracking in all m edia studied were found to differ insignificantly, independently of th e crack formation technique. This fact testifies to the closeness of t he configuration parameters of the cracks developed. The data obtained allow us to propose a less labor-intensive technique of corrosion cra ck formation to speed up steel testing for corrosion cracking.