فهرس المقالات Single Step Incremental High Pressure Torsion (SIHPT) حرية الوصول المقاله صفحة الملخص نص كامل 1 - Optimal Design of Steppers in Single Step High Pressure Torsion (SIHPT) Process as a Novel SPD Method Mehdi Eskandarzadeh Ghader Faraji A. Masoumi Ali Kalaki