TY CONF TI EFFECT OF NONMETALLIC INCLUSIONS ON THE IMPACT STRENGTH OF 20GL STEEL CAR CASTINGS KW microstructure KW impact strength KW side frame KW spring beam KW 20gl steel JO Ensuring and improving the quality of engineering and aerospace products AU Bogadnov, R.A. AU Davydov, S.V. AU Chuhchin, D.G. PY 2024 PB Bryansk State Technical University