Preparation method of long-period stacking order (LPSO) structural phase enhanced magnesium gadolinium zinc calcium aluminium alloy plate
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- TAIYUAN UNIV OF TECH
- Publication Date
- 2017-08-18
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Abstract
Description
technical field
[0001] The invention relates to a preparation method of a long-period ordered stacking structure phase-reinforced magnesium-gadolinium-zinc-calcium-aluminum alloy plate, which belongs to the technical field of preparation and application of nonferrous metal materials. Background technique
[0002] Long-period stacking order, LPSO has high hardness, high elastic modulus, high thermal stability, and has a coherent interphase interface with the magnesium matrix, which can significantly improve the strength, plasticity, and corrosion resistance of magnesium alloys However, it is difficult for magnesium-gadolinium-zinc alloys to form LPSO phases in the as-cast state, and the LPSO phase can only be formed after a long time of high-temperature solution treatment; while the brittle β-( MgZn) 3 The Gd phase is often distributed in the grain boundary in the form of a coarse continuous network / skeleton, splitting the matrix of the magnesium alloy and deteriorating the ...