A strong plasticizing processing method for brittle-prone rare-earth magnesium alloy
A processing method and rare earth magnesium technology, applied in the field of magnesium alloy processing, can solve the problems of poor strength and plasticity of rare earth magnesium alloys that tend to be brittle, and achieve the effects of improving the strength and plasticity of the alloy, increasing the tensile strength, and improving the plasticity of the alloy.
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specific Embodiment approach 1
[0029] Specific embodiment 1: The strong plasticizing processing method of the brittle rare earth magnesium alloy in this embodiment is carried out according to the following steps;
[0030] Step 1: The brittle-prone as-cast alloy is subjected to solid solution treatment to obtain a solid solution alloy;
[0031] The solution treatment process is as follows: heating the brittle-prone as-cast alloy to 480-510°C and keeping the temperature for 5-40h, then quenching with 80-99°C hot water until the alloy temperature is the same as the water temperature, and then air-cooling or cooling to room temperature with normal temperature water ; A supersaturated solid solution with approximately single phase was obtained; the holding time of the brittle-prone as-cast alloy in the solution treatment process was prolonged with the increase of Gd content;
[0032] Step 2: Extruding and deforming the solid solution alloy obtained in Step 1 to obtain an extruded alloy; the grains in the extrude...
specific Embodiment approach 2
[0045]Embodiment 2: The difference between this embodiment and Embodiment 1 is that the brittle-prone as-cast alloy in step 1 is an as-cast multicomponent alloy with as-cast fracture elongation less than 6% and Gd element mass fraction of not less than 5%. Rare earth magnesium alloy.
specific Embodiment approach 3
[0046] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the solution treatment process in step 1 is: heating the brittle-prone as-cast alloy to 510°C and holding it for 7 hours, and then quenching with 90°C hot water until the alloy temperature is the same as the water temperature, and then air-cooled or cooled to room temperature with normal temperature water.
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