Rail welding transition material resistant to stress corrosion damage and preparation method thereof

A method for preparing a rail welding transition material resistant to stress corrosion damage, the rail welding transition material comprising the following components in mass percentage:

• 0.02-0.04% of C, Si≤0.20%, 6.5-7.0% of Mn, 11.0-11.5% of Ni, 17.6-18.0% of Cr, 2.1-2.4% of Mo, 0.02-0.04% of N, 0.05-0.15% of Nb, 0.05-0.15% of V, P≤0.015%, S≤0.010%, with the balance being Fe, the method comprising the following steps:
• mixing the components as raw materials, smelting, and casting to obtain a steel ingot;
• and
• subjecting the steel ingot to homogenization treatment, followed by pre-forging to obtain a forged billet;
• and subjecting the forged billet to hot deformation followed by rapid water cooling to obtain the rail welding transition material.