Effect of Pouring Temperature on Mechanical Properties and Oxidation Resistance of AZ80 Mechanical Shell by Liquid Die Forging
In order to explore the influence rules of pouring temperature on the mechanical properties and oxidation resistance of liquid die forged AZ80 mechanical shell,the liquid die forging test of AZ80 magnesium alloy mechanical shell samples was carried out with different pouring temperatures under the melting temperature of 720℃,the specific pressure of 50 MPa,the indenter speed of 60 mm/s,the filling speed of 8 m/s,the filling time of 1.1 s,the holding time of 10 s and the mold preheating temperature of 280℃.The mechanical properties and oxidation resistance of the samples were tested and analyzed.The results show that with the increase of pouring temperature from 610℃to 670℃,the mechanical properties and oxidation resistance(350℃×24 h)of the samples increase first and then decrease.The pouring temperature of liquid die forging for AZ80 magnesium alloy mechanical shell sample is preferably 655℃.
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