Magnesium alloy casting and preparation method thereof
A magnesium alloy and casting technology, applied in the field of magnesium alloy casting and its preparation, can solve the problems of magnesium alloy processing performance, poor mechanical properties, poor fluidity of magnesium alloy, easy oxidation and corrosion, etc. Increased, tissue uniform effect
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Embodiment 1
[0029] A magnesium alloy casting, said casting is composed of the following components by weight percentage: Si: 4.2%; Cu: 0.85%; Al: 3%; W: 0.2%; Mn: 0.1%; Y: 2%; Pr: 0.1%; Ti: 0.1%; Zr: 0.05%; Nd: 0.3%; the balance is Mg and unavoidable impurities. The casting also includes a modificator, which is added in an amount of 2% of the above-mentioned casting components, and the components of the modificator are composed of the following by mass percentage: Zn: 13%; B: 30%, Y: 2%, Gd: 2%, Ce: 4%, Sn: 0.3%, and the balance is Mg.
[0030] The casting also includes a functional salt, which is added in an amount of 0.5% of the above-mentioned casting components, and the components of the functional salt are composed of 40% K2ZrCl6, 40% LiCl and 20% CaF by mass percentage.
[0031] The product prepared in this embodiment has a uniform and smooth surface, no cold shut and cracks, the tensile strength is increased from the original 225MPa~235MPa to more than 300MPa, the yield strength i...
Embodiment 2
[0033] A magnesium alloy casting, said casting is composed of the following components by weight percentage: Si: 2.6%; Cu: 1.5%; Al: 6%; W: 0.8%; Mn: 0.5%; Y: 5%; Pr: 0.2%; Ti: 0.15%; Zr: 0.08%; Nd: 0.7%; the balance is Mg and unavoidable impurities. The casting also includes a modificator, which is added in an amount of 7% of the above-mentioned casting components, and the components of the modificator are composed of the following by mass percentage: Zn: 15%; B: 15%, Y: 2%, Gd: 2%, Ce: 4%, Sn: 0.08%, and the balance is Mg.
[0034] The casting also includes a functional salt, which is added in an amount of 1% of the components of the above-mentioned casting, and the components of the functional salt are composed of 40% K2ZrCl6, 40% LiCl and 20% CaF by mass percentage.
[0035] The product prepared in this embodiment has a uniform and smooth surface, no cold shut and cracks, the tensile strength is increased from the original 225MPa~235MPa to 320MPa, the yield strength is in...
Embodiment 3
[0037] A magnesium alloy casting, said casting is composed of the following components by weight percentage: Si: 3.2%; Cu: 1.2%; Al: 5%; W: 0.6%; Mn: 0.4%; Y: 3%; Pr: 0.15%; Ti: 0.12%; Zr: 0.07%; Nd: 0.5%; the balance is Mg and unavoidable impurities. The casting also includes a modificator, which is added in an amount of 5% of the above-mentioned casting components, and the components of the modificator are composed of the following by mass percentage: Zn: 14%; B: 18%, Y: 2%, Gd: 2%, Ce: 4%, Sn: 0.2%, and the balance is Mg.
[0038] The casting also includes a functional salt, which is added in an amount of 0.8% of the above-mentioned casting components, and the components of the functional salt are composed of 40% K2ZrCl6, 40% LiCl and 20% CaF by mass percentage.
[0039] The product prepared in this embodiment has a uniform and smooth surface, no cold shut and cracks, the tensile strength is increased from the original 225MPa~235MPa to more than 330MPa, the yield strength ...
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