High strength, heat-resistant aluminum-based alloys

A high strength, heat resistant aluminum-based alloy having a composition represented by the general formula:

• Al.sub.a Fe.sub.b Mm.sub.c
• wherein:
• a, b and c are atomic percentages falling within the following ranges:
• 50.ltoreq.a.ltoreq.95, 0.5 .ltoreq.b.ltoreq.35 and 0.5.ltoreq.c.ltoreq.25,
• wherein said aluminum-based alloy is composed of a microcrystalline composite structure.

A high strength, heat resistant aluminum-based alloy having a composition represented by the general formula:

• Al.sub.a Fe.sub.b Mm.sub.c' X".sub.c"
• wherein :
• X" is at least one metal element selected from the group consisting of Y, Hf, Nb and Ta;
• and
• a, b, c' and c" are atomic percentages falling within the following ranges:
• 50.ltoreq.a.ltoreq.95, 0.5 .ltoreq.b.ltoreq.35 and 0.5.ltoreq.c=c'+c".ltoreq.25,
• wherein said aluminum-based alloy is composed of a microcrystalline composite structure.

A high strength, heat resistant aluminum-based alloy having a composition represented by the general formula:

• Al.sub.a3 Fe.sub.b3 Ce.sub.c3
• wherein:
• a3, b3 and c3 are atomic percentages falling within the following ranges:
• 66.ltoreq.a3.ltoreq.95, 0.5.ltoreq.b3.ltoreq.9 and 2.5.ltoreq.c3.ltoreq.25,
• wherein said aluminum-based alloy is composed of a microcrystalline composite structure.

A high strength, heat resistant aluminum-based alloy having a composition represented by the general formula:

• Al.sub.a4 Fe.sub.b4 Ce.sub.c4
• wherein:
• a4, b4 and c4 are atomic percentages falling within the following ranges:
• 5.ltoreq. a4.ltoreq.90.5, 9.ltoreq.b4.ltoreq.35 and 0.5.ltoreq.c4.ltoreq.25 wherein said aluminum-based alloy is composed of a microcrystalline composite structure.

A high strength, heat resistant aluminum-based alloy having a composition represented by the general formula:

• Al.sub.a9 Fe.sub.b9 Ce.sub.e1 Y.sub.e2
• wherein:
• a9, b9, e1 and e2 are atomic percentages falling within the following ranges:
• 66.ltoreq.a9.ltoreq.95, 0.5.ltoreq.b9.ltoreq.9 and 3.5.ltoreq.e1+e2.ltoreq.25,
• wherein said aluminum-based alloy is composed of a microcrystalline composite structure.

A high strength, heat resistant aluminum-based alloy having a composition represented by the general formula:

• Al.sub.a10 Fe.sub.b10 Ce.sub.e'1 Y.sub.e'2
• wherein:
• a10, b10, e'1 and e'2 are atomic percentages falling within the following ranges:
• 50.ltoreq.a10.ltoreq.90.5,9.ltoreq.b10.ltoreq.35 and 0.5.ltoreq.e'1+e'2.ltoreq.25,
• wherein said aluminum-based alloy is composed of a microcrystalline composite structure.

A high strength, heat resistant aluminum-based alloy having a composition represented by the general formula:

• Al.sub.a Fe.sub.b' M.sub.2b" Mm.sub.c
• wherein:
• M.sub.2 is at least one metal element selected from the group consisting of V, Cr, Co, Ni, Zr, Ti, Mo and Si;
• and
• a, b', b" and c are atomic percentages falling within the following ranges:
• 50.ltoreq.a.ltoreq.95, 0.5.ltoreq.b=b'+b".ltoreq.35 and 0.5.ltoreq.c.ltoreq.25,
• wherein said aluminum-based alloy is composed of a microcrystalline composite structure.

A high strength, heat resistant aluminum-based alloy having a composition represented by the general formula:

• Al.sub.a Fe.sub.b' M.sub.2b" Mm.sub.c' X".sub.c"
• wherein:
• is at least one metal element selected from the group consisting of V, Cr, Co, Ni, Zr, Ti, Mo and Si;
• X" is at least one metal element selected from the group consisting of Y, Ta, Hf, and Nb;
• and
• a, b', b", c' and c" are atomic percentages falling within the following ranges:
• 50.ltoreq.a.ltoreq.95, 0.5.ltoreq.b=b'+b".ltoreq.35 and 0.5.ltoreq.c=c'+c".ltoreq.25,
• wherein said aluminum-based alloy is composed of a microcrystalline composite structure.

A high strength, heat resistant aluminum-based alloy having a composition represented by the general formula:

• Al.sub.a Fe.sub.b' M.sub.3b" x.sub.2c
• wherein:
• M.sub.3 is at least one metal element selected from the group consisting of Mn, Cu, W, Ca and Li;
• X.sub.2 is at least one metal element selected from the group consisting of Y, La, Ce, Sm, Nd, Hf, Nb, and Ta;
• and
• a, b', b" and c are atomic percentages falling within the following ranges:
• 50.ltoreq.a.ltoreq.95, 0.5.ltoreq.b=b'+b".ltoreq.35 and 0.5.ltoreq.c.ltoreq.25,
• wherein said aluminum-based alloy is composed of a microcrystalline composite structure.

A high strength, heat resistant aluminum-based alloy having a composition represented by the general formula:

• Al.sub.a Fe.sub.b' M.sub.3b" Mm.sub.c
• wherein:
• M.sub.3 is at least one metal element selected from the group consisting of Mn, Cu, W, Ca and Li;
• and
• a, b', b" and c are atomic percentages falling within the following ranges:
• 50.ltoreq.a.ltoreq.95, 0.5.ltoreq.b=b'+b".ltoreq.35 and 0.5.ltoreq.c.ltoreq.25,
• wherein said aluminum-based alloy is composed of a microcrystalline composite structure.

A high strength, heat resistant aluminum-based alloy having a composition represented by the general formula:

• Al.sub.a Fe.sub.b' M.sub.3b" Mm.sub.c' X".sub.c"
• wherein:
• M.sub.3 is at least one metal element selected from the group consisting of Mn, Cu, W, Ca and Li;
• X" is at least one metal element selected from the group consisting of Y, Ta, Nb and Hf;
• and
• a, b', b", c' and c" are atomic percentages falling within the following ranges:
• 50.ltoreq.a.ltoreq.95, 0.5.ltoreq.b=b'+b".ltoreq.35 and 0.5.ltoreq.c=c'+c".ltoreq.25,
• wherein said aluminum-based alloy is composed of a microcrystalline composite structure.

A high strength, heat resistant aluminum-based alloy having a composition represented by the general formula:

• Al.sub.a5 Fe.sub.b'5 M.sub.2b"5 Y.sub.c5
• wherein:
• M.sub.2 is at least one metal element selected from the group consisting of V, Cr, Co, Ni, Zr, Ti, Mo and Si;
• and
• a5, b'5, b"5 and c5 are atomic percentages falling within the following ranges:
• 66.5.ltoreq.a5.ltoreq.95, 0.5.ltoreq.b'5.ltoreq.8.6,0<b"5.ltoreq.34.5, and 3.5<c5.ltoreq.25,
• wherein said aluminum-based alloy is composed of a microcrystalline composite structure.

A high strength, heat resistant aluminum-based alloy having a composition represented by the general formula:

• Al.sub.a6 Fe.sub.b'6 M.sub.2b"6 Y.sub.c6
• wherein:
• M.sub.2 is at least one metal element selected from the group consisting of V, Cr, Co, Ni, Zr, Ti, Mo and Si;
• and
• a6, b'6, b"6 and c6 are atomic percentages falling within the following ranges:
• 50.ltoreq.a6.ltoreq.91, 8.6<b'6<35, 0<b"6<26.5, and 0.5.ltoreq.c6.ltoreq.25,
• wherein said aluminum-based alloy is composed of a microcrystalline composite structure.

A high strength, heat resistant aluminum-based alloy having a composition represented by the general formula:

• Al.sub.a7 Fe.sub.b'7 M.sub.2b"7 Ce.sub.c7
• wherein:
• M.sub.2 is at least one metal element selected from the group consisting of V, Cr, Co, Ni, Zr, ti, Mo and Si;
• and
• a7, b'7, b"7 and c7 are atomic percentages falling within the following ranges:
• 66.5.ltoreq.a7.ltoreq.94, 0.5 .ltoreq.b'7.ltoreq.8.6,0<b"7.ltoreq.34.5, and 2.2<c7.ltoreq.25,
• wherein said aluminum-based alloy is composed of a microcrystalline composite structure.

A high strength, heat resistant aluminum-based alloy having a composition represented by the general formula:

• Al.sub.a8 Fe.sub.b'8 M.sub.2b"8 Ce.sub.c8
• wherein:
• M.sub.2 is at least one metal element selected from the group consisting of V, Cr, Co, Ni, Zr, Ti, Mo and Si;
• and
• A8, b'8, b"8 and c8 are atomic percentages falling within the following ranges:
• 50.ltoreq.a8<90.9, 8.6<b'8<35,0<b"8.ltoreq.26.5 and 0.5.ltoreq.c8.ltoreq.25,
• wherein said aluminum-based alloy is composed of a microcrystalline composite structure.

A high strength, heat resistant aluminum-based alloy having a composition represented by the general formula:

• Al.sub.a11 Fe.sub.b11 M.sub.2b'11 Ce.sub.e3 Y.sub.e4
• wherein:
• M.sub.2 is at least one metal element selected from the group consisting of V, Cr, Co, Ni, Zr, Ti, Mo and Si;
• and
• a11, b11, b'11, e3 and e4 are atomic percentages falling within the following ranges:
• 66. 5.ltoreq.a11.ltoreq.94, 0.5.ltoreq.b11.ltoreq.8.6,0<b'11.ltoreq.34.5 and 3.5<e3+e4.ltoreq.25,
• wherein said aluminum-based alloy is composed of a microcrystalline composite structure.

A high strength, heat resistant aluminum-based alloy having a composition represented by the general formula:

• Al.sub.a12 Fe.sub.b12 M.sub.2b'12 Ce.sub.e'3 Y.sub.e'4
• wherein:
• M.sub.2 is at least one metal element selected from the group consisting of V, Cr, Co, Ni, Zr, Ti, Mo and Si;
• and
• a12, b12, b12', e'3 and e'4 are atomic percentages falling within the following ranges:
• 50.ltoreq.a12<90.9,8.6<b12<35,0<b'12.ltoreq.26.5 and 0.5.ltoreq.e'3+e'4.ltoreq.25,
• wherein said aluminum-based alloy is composed of a microcrystalline composite structure.

A high strength, heat resistant aluminum-based alloy having a composition represented by the general formula:

• Al.sub.a Fe.sub.d1 M.sub.2d2 M.sub.3d3 X.sub.2c
• wherein:
• M.sub.2 is at least one metal element selected from the group consisting of V, Cr, Co, Ni, Zr, Ti, Mo and Si;
• M.sub.3 is at least one metal element selected from the group consisting of Mn, Cu, W, Ca and Li;
• X.sub.2 is at least one metal element selected from the group consisting of Y, La, Ce, Sm, Nd, Hf, Nb and Ta;
• and
• a, d1, d2, d3 and c are atomic percentages falling within the following ranges:
• 5.ltoreq. a.ltoreq.95,0.5.ltoreq.b=d1+d2+d3.ltoreq.35 and 0.5.ltoreq.c.ltoreq.25,
• wherein said aluminum-based alloy is composed of a microcrystalline composite structure.

A high strength, heat resistant aluminum-based alloy having a composition represented by the general formula:

• Al.sub.a Fe.sub.dl M.sub.2d2 M.sub.3d3 Mm.sub.c
• wherein:
• M.sub.2 is at least one metal element selected from the group consisting of V, Cr, Co, Ni, Zr, Ti, Mo and Si;
• M.sub.3 is at least one metal element selected from the group consisting of Mn, Cu, W, Ca and Li;
• and
• a, d1, d2, d3 and c are atomic percentages falling within the following ranges:
• 50.ltoreq.a.ltoreq.95,0.5.ltoreq.b=d1+d2+d3.ltoreq.35and 0.5.ltoreq.c.ltoreq.25,
• wherein said aluminum-based alloy is composed of a microcrystalline composite structure.