TY JOUR TI OPTIMAL INDUCTOR DESIGN FOR SURFACE HARDENING OF CYLINDRICAL BILLETS BASED ON NUMERICAL TWO-DIMENSIONAL MODEL KW surface induction hardening KW optimal inductor design KW alternance method KW numerical simulation KW temperature deviation KW heating process JO Vestnik of Astrakhan State Technical University. Series: Management, computer science and informatics AU Pleshivtseva, Y.. AU Popov, A.. AU Popova, M.. AU Derevyanov, M.. PY 2019 IS PB Astrakhan State Technical University