Bulk nickel-based chromium and phosphorous bearing metallic glasses
First Claim
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1. A metallic glass alloy comprising:
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Ni(68.6−
w−
x−
y−
z)Cr8.7+wNb3+xP16.5+yB3.2+z,where w, x, y, and z are positive or negative atomic percentages that represent a deviation from the base composition having absolute values that satisfy;
0.21|w|+0.84|x|+0.96|y|+1.18|z|<
1.89, andwherein the alloy has a critical rod diameter of at least 3 mm.
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Abstract
Ni-based Cr- and P-bearing alloys that can from centimeter-thick amorphous articles are provided. Within the family of alloys, millimeter-thick bulk-glassy articles can undergo macroscopic plastic bending under load without fracturing catastrophically.
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Citations
44 Claims
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1. A metallic glass alloy comprising:
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Ni(68.6−
w−
x−
y−
z)Cr8.7+wNb3+xP16.5+yB3.2+z,where w, x, y, and z are positive or negative atomic percentages that represent a deviation from the base composition having absolute values that satisfy;
0.21|w|+0.84|x|+0.96|y|+1.18|z|<
1.89, andwherein the alloy has a critical rod diameter of at least 3 mm. - View Dependent Claims (2, 3)
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4. A metallic glass alloy comprising:
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Ni(100−
a−
b−
c−
d)CraNbbPcBdwhere a, b, c, and d represent atomic percentages, and where; a is greater than 2.5 and less than 15, b is greater than 1.5 and less than 4.5, c is greater than 14.5 and less than 18.5, and d is greater than 1.5 and less than 4.5; and wherein the alloy has a critical rod diameter of at least 4 mm. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A metallic glass alloy comprising:
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Ni(100−
a−
b−
c−
d−
e)CraNbbPcBdSiewhere a, b, c, d, and e are atomic percentages, and wherein; a is between 4 and 14, b is between 1.8 and 4.3, c is between 13.5 and 17.5, d is between 2.3 and 3.9, and e is up to 2; and wherein the alloy has a critical rod diameter of at least 3 mm. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41)
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42. A metallic glass alloy selected from the group consisting of:
- Ni69Cr8.5Nb3P17B2.5, Ni69Cr8.5Nb3P16.75B2.75, Ni69Cr8.5Nb3P16.5B3, Ni69Cr8.5Nb3P16B3.5, Ni69Cr8.5Nb3P15.75B3.75, Ni69Cr9Nb2.5P16.5B3, Ni69Cr8.75Nb2.75P16.5B3, Ni69Cr8.25Nb3.25P16.5B3, Ni69Cr8Nb3.5P16.5B3, Ni69Cr7.5Nb4P16.5B3, Ni72.5Cr5Nb3P16.5B3, Ni71.5Cr6Nb3P16.5B3, Ni70.5Cr7Nb3P16.5B3, Ni69.5Cr8Nb3P16.5B3, Ni68.5Cr9Nb3P16.5B3, Ni68Cr9.5Nb3P16.5B3, Ni67.5Cr10Nb3P16.5B3, Ni66.5Cr11Nb3P16.5B3, Ni65.5Cr12Nb3P16.5B3, Ni68.5Cr9Nb3P16B3Si0.5, Ni68.5Cr9Nb3P15.5B3Si1, Ni69Cr8.5Nb3P16B3Si0.5, Ni69Cr8.5Nb3P15.5B3Si1, Ni69.03Cr8.75Nb3.02P16.08B3.12, Ni68.17Cr8.65Nb2.98P16.92B3.28, Ni67.75Cr8.59Nb2.96P17.34B3.36, Ni69Cr8.5Nb2.5Ta0.5P15.5B3Si1, and Ni69.5Cr8.5Nb2.5Ta0.5P15.5B3Si1;
wherein the alloy has a critical rod diameter of at least 3 mm.
- Ni69Cr8.5Nb3P17B2.5, Ni69Cr8.5Nb3P16.75B2.75, Ni69Cr8.5Nb3P16.5B3, Ni69Cr8.5Nb3P16B3.5, Ni69Cr8.5Nb3P15.75B3.75, Ni69Cr9Nb2.5P16.5B3, Ni69Cr8.75Nb2.75P16.5B3, Ni69Cr8.25Nb3.25P16.5B3, Ni69Cr8Nb3.5P16.5B3, Ni69Cr7.5Nb4P16.5B3, Ni72.5Cr5Nb3P16.5B3, Ni71.5Cr6Nb3P16.5B3, Ni70.5Cr7Nb3P16.5B3, Ni69.5Cr8Nb3P16.5B3, Ni68.5Cr9Nb3P16.5B3, Ni68Cr9.5Nb3P16.5B3, Ni67.5Cr10Nb3P16.5B3, Ni66.5Cr11Nb3P16.5B3, Ni65.5Cr12Nb3P16.5B3, Ni68.5Cr9Nb3P16B3Si0.5, Ni68.5Cr9Nb3P15.5B3Si1, Ni69Cr8.5Nb3P16B3Si0.5, Ni69Cr8.5Nb3P15.5B3Si1, Ni69.03Cr8.75Nb3.02P16.08B3.12, Ni68.17Cr8.65Nb2.98P16.92B3.28, Ni67.75Cr8.59Nb2.96P17.34B3.36, Ni69Cr8.5Nb2.5Ta0.5P15.5B3Si1, and Ni69.5Cr8.5Nb2.5Ta0.5P15.5B3Si1;
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43. A metallic glass alloy comprising:
- Ni68.6Cr8.7Nb3P16.5B3.2;
wherein the alloy has a critical rod diameter of at least 3 mm.
- Ni68.6Cr8.7Nb3P16.5B3.2;
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44. A metallic glass alloy comprising:
- Ni68.6Cr8.7Nb3P16Si0.5B3.2;
wherein the alloy has a critical rod diameter of at least 3 mm.
- Ni68.6Cr8.7Nb3P16Si0.5B3.2;
Specification