Analysis of Forging Forming Process for High Strength Magnesium Alloys Mg-8Gd-1.5Y-1M Containing Ti

The forging tests of Mg-8 Gd-1.5 Y-0.8 Ti high-strength magnesium alloy samples containing Ti were carried out with different initial forging temperature,final forging temperature and forging speed.The mechanical properties of obtained alloys were tested and analyzed.The results show that proper increasing of the initial forging temperature,final forging temperature and forging speed contribute to the improvement of mechanical properties.Mg-8 Gd-1.5 Y-0.8 Ti magnesium alloy containing Ti has the highest tensile strength and yield strength at initial forging temperature of 440 ℃,final forging temperature of 350 ℃ and forging speed of 12 mm/min.The tensile strength and yield strength were respectively increased by 51 MPa and 53 MPa compared with those forged at the initial forging temperature of 380 ℃,increased by 46 MPa and 49 MPa respectively at final forging temperature of 290 ℃,and increased by 39 MPa and 37 MPa compared with those forged at 4 mm/min.Thus it is proposed that the best forging process parameters of the Mg-8 Gd-1.5 Y-0.8 Ti high-strength magnesium alloy samples containing Ti are as following:initial forging temperature of 440 ℃,final forging temperature of 350 ℃,and forging speed of 12 mm/min.