Wrought aluminum alloy
AssigneeKorea Automotive Technology Institute
InventorsSi Young SUNG, Beom Suck HAN, Se Hoon KIM, Jae Hyuk SHIN, Jin Pyeong KIM
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Abstract
Provided is a wrought aluminum alloy including 5.5 to 6.0 wt % of Zn, 2.0 to 2.5 wt % of Mg, 0.2 to 0.6 wt % of Cu, 0.1 to 0.2 wt % of Cr, at most 0.2 wt % (and more than 0 wt %) of Fe, at most 0.2 wt % (and more than 0 wt %) of Mn, at most 0.2 wt % (and more than 0 wt %) of Si, at most 0.1 wt % (and more than 0 wt %) of Ti, and at most 0.05 wt % (and more than 0 wt %) of Sr, with the remainder being Al.
Claims15
A wrought aluminum alloy comprising:
- 5.5 to 6.0 wt % of Zn;
- 2.0 to 2.5 wt % of Mg;
- 0.2 to 0.6 wt % of Cu;
- 0.1 to 0.2 wt % of Cr;
- at most 0.2 wt % (and more than 0 wt %) of Fe;
- at most 0.2 wt % (and more than 0 wt %) of Mn;
- at most 0.2 wt % (and more than 0 wt %) of Si;
- at most 0.1 wt % (and more than 0 wt %) of Ti;
- and
- at most 0.05 wt % (and more than 0 wt %) of Sr, with the remainder being Al.
A wrought aluminum alloy comprising:
- 5.5 to 6.0 wt % of Zn;
- 2.0 to 2.5 wt % of Mg;
- 0.2 to 0.6 wt % of Cu;
- 0.1 to 0.2 wt % of Cr;
- at most 0.2 wt % (and more than 0 wt %) of Fe;
- at most 0.2 wt % (and more than 0 wt %) of Mn;
- at most 0.2 wt % (and more than 0 wt %) of Si;
- and
- at most 0.1 wt % (and more than 0 wt %) of Ti, with the remainder being Al.
A wrought aluminum alloy comprising:
- 5.5 to 6.0 wt % of Zn;
- 2.0 to 2.5 wt % of Mg;
- 0.2 to 0.6 wt % of Cu;
- 0.1 to 0.2 wt % of Cr;
- at most 0.2 wt % (and more than 0 wt %) of Fe;
- at most 0.2 wt % (and more than 0 wt %) of Mn;
- at most 0.2 wt % (and more than 0 wt %) of Si;
- at most 0.1 wt % (and more than 0 wt %) of Ti;
- at most 0.05 wt % (and more than 0 wt %) of Sr;
- and
- 0.1 to 0.8 wt % of Ag, with the remainder being Al.
A wrought aluminum alloy comprising:
- 0.01 to 0.15 wt % of Ti;
- 0.01 to 0.2 wt % of Sr;
- 5.5 to 6.0 wt % of Zn;
- 1.8 to 2.8 wt % of Mg;
- 0.4 to 0.8 wt % of Cu;
- 0.1 to 0.2 wt % of Cr;
- at most 0.2 wt % (and more than 0 wt %) of Fe;
- at most 0.2 wt % (and more than 0 wt %) of Mn;
- and
- at most 0.2 wt % (and more than 0 wt %) of Si, with the remainder being Al.
A wrought aluminum alloy comprising:
- 0.01 to 0.15 wt % of Ti;
- 5.5 to 6.0 wt % of Zn;
- 1.8 to 2.8 wt % of Mg;
- 0.4 to 0.8 wt % of Cu;
- 0.1 to 0.2 wt % of Cr;
- at most 0.2 wt % (and more than 0 wt %) of Fe;
- at most 0.2 wt % (and more than 0 wt %) of Mn;
- and
- at most 0.2 wt % (and more than 0 wt %) of Si, with the remainder being Al.
A wrought aluminum alloy comprising:
- at least 5.5 wt % and less than 6.0 wt % of Zn;
- 2.0 to 2.5 wt % of Mg;
- 0.2 to 0.6 wt % of Cu;
- 0.1 to 0.2 wt % of Cr;
- at most 0.2 wt % (and more than 0 wt %) of Fe;
- at most 0.2 wt % (and more than 0 wt %) of Mn;
- at most 0.2 wt % (and more than 0 wt %) of Si;
- at most 0.1 wt % (and more than 0 wt %) of Ti;
- at most 0.05 wt % (and more than 0 wt %) of Sr;
- and
- 0.2 to 0.8 wt % of Ag, with the remainder being Al, wherein extrusion is possible at an extrusion speed in the range of 1.2 to 1.5 mm/s, and the yield strength is in the range of 523 to 565 MPa when T6 heat treatment is performed after the extrusion.
A wrought aluminum alloy comprising:
- 0.01 to 0.15 wt % of Ti;
- 0.01 to 0.2 wt % of Sr;
- 5.5 to 6.0 wt % of Zn;
- 1.8 to 2.8 wt % of Mg;
- 0.4 to 0.8 wt % of Cu;
- 0.1 to 0.2 wt % of Cr;
- at most 0.2 wt % (and more than 0 wt %) of Fe;
- at most 0.2 wt % (and more than 0 wt %) of Mn;
- and
- at most 0.2 wt % (and more than 0 wt %) of Si, with the remainder being Al, wherein the extrusion speed is in the range of 1.0 to 1.4 mm/s.
Dependencies are inferred from the claim text.