Claims
- 1. A hard facing chromium-base alloy consisting essentially of 30.0 to 48.0% by weight of nickel; 1.5 to 15.0% by weight of tungsten and/or 1.0 to 6.5% by weight of molybdenum; and one or more of 0.3 to 2.0% by weight of carbon, 0.1 to 1.5% by weight of boron, 0.5 to 2.5% by weight of aluminum and 0.1 to 1.5% by weight of silicon; the balance being 40.0 or more % by weight of chromium and unavoidable impurities, the maximum sum of tungsten and molybdenum being 15.0 or less % by weight, and comprising a crystallized chromium solid solution as a primary crystalline phase therein.
- 2. A hard facing chromium-base alloy consisting essentially of 30.0 to 48.0% by weight of nickel; 1.5 to 15.0% by weight of tungsten and/or 1.0 to 6.5% by weight of molybdenum; and one or more of 15.0 or less % by weight of iron and/or 10.0 or less % by weight of cobalt wherein the maximum sum of iron and cobalt is 20% by weight, 0.3 to 2.0% by weight of carbon, 0.1 to 1.5% by weight of boron, 0.5 to 2.5% by weight of aluminum and 0.1 to 1.5% by weight of silicon; the balance being 40.0 or more % by weight of chromium and unavoidable impurities, the maximum sum of tungsten and molybdenum being 15.0 or less % by weight, and comprising a crystallized chromium solid solution as a primary crystalline phase therein.
- 3. A hard facing chromium-base alloy consisting essentially of 30.0 to 48.0% by weight of nickel; 1.5 to 15.0% by weight of tungsten and/or 1.0 to 6.5% by weight of molybdenum; and one or more of 1.0 to 4.0% by weight of niobium and/or 0.5 to 2.5% by weight of titanium wherein the maximum sum of niobium and titanium is 5.0% by weight, 0.3 to 2.0% by weight of carbon, 0.1 to 1.5% by weight of boron, 0.5 to 2.5% by weight of aluminum and 0.1 to 1.5% by weight of silicon; the balance being 40.0 or more % by weight of chromium and unavoidable impurities, the maximum sum of tungsten and molybdenum being 15.0 or less % by weight, and comprising a crystallized chromium solid solution as a primary crystalline phase therein.
- 4. A hard facing chromium-base alloy consisting essentially of 30.0 to 48.0% by weight of nickel; 1.5 to 15.0% by weight of tungsten and/or 1.0 to 6.5% by weight of molybdenum; and one or more of 1.0 to 4.0% by weight of niobium and/or 0.5 to 2.5% by weight of titanium wherein the maximum sum of niobium and titanium is 5.0% by weight, 15.0 or less % by weight of iron and/or 10.0 or less % by weight of cobalt wherein the maximum sum of iron and cobalt is 20% by weight, 0.3 to 2.0% by weight of carbon, 0.1 to 1.5% by weight of boron, 0.5 to 2.5% by weight of aluminum and 0.1 to 1.5% by weight of silicon; the balance being 40.0 or more % by weight of chromium and unavoidable impurities, the maximum sum of tungsten and molybdenum being 15.0 or less % by weight, and comprising a crystallized chromium solid solution as a primary crystalline phase therein.
- 5. A hard facing chromium-base alloy consisting essentially of 30.0 to 48.0% by weight of nickel; 1.5 to 15.0% by weight of tungsten and/or 1.0 to 6.5% by weight of molybdenum; and one or more of 0.01 to 0.12% by weight of one or more of aluminum, yttrium, misch metal, zirconium and hafnium, 0.3 to 2.0% by weight of carbon, 0.1 to 1.5% by weight of boron, 0.1 to 1.5% by weight of silicon; the balance being 40.0 or more % by weight of chromium and unavoidable impurities, the maximum sum of tungsten and molybdenum being 15.0 or less % by weight, and comprising a crystallized chromium solid solution as a primary crystalline phase therein.
- 6. A hard facing chromium-base alloy consisting essentially of 30.0 to 48.0% by weight of nickel; 1.5 to 15.0% by weight of tungsten and/or 1.0 to 6.5% by weight of molybdenum; and one or more of 1.0 to 4.0% by weight of niobium and/or 0.5 to 2.5% by weight of titanium wherein the maximum sum of niobium and titanium is 5.0% by weight, 0.01 to 0.12% by weight of one or more or aluminum, yttrium, misch metal, circonium and hafnium, 0.3 to 2.0% by weight of carbon, 0.1 to 1.5% by weight of boron, 0.1 to 1.5% by weight of silicon; the balance being 40.0 or more % by weight of chromium and unavoidable impurities, the maximum sum of tungsten and molybdenum being 15.0 or less % by weight, and comprising a crystallized chromium solid solution as a primary crystalline phase therein.
Priority Claims (8)
Number |
Date |
Country |
Kind |
3-214026 |
Aug 1991 |
JPX |
|
3-329196 |
Dec 1991 |
JPX |
|
3-329197 |
Dec 1991 |
JPX |
|
3-329198 |
Dec 1991 |
JPX |
|
3-329199 |
Dec 1991 |
JPX |
|
3-329200 |
Dec 1991 |
JPX |
|
4-15995 |
Jan 1992 |
JPX |
|
4-76631 |
Mar 1992 |
JPX |
|
Parent Case Info
This application is a continuation of Ser. No. 07/883,960 filed May 15, 1992, now U.S. Pat. No. 5,314,659.
US Referenced Citations (5)
Foreign Referenced Citations (7)
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Country |
68284 |
Jan 1983 |
EPX |
357216 |
Mar 1990 |
EPX |
2168402 |
Aug 1973 |
FRX |
2371515 |
Jun 1978 |
FRX |
1608116 |
Dec 1970 |
DEX |
62-256941 |
Nov 1987 |
JPX |
63-11644 |
Jan 1988 |
JPX |
Continuations (1)
|
Number |
Date |
Country |
Parent |
883960 |
May 1992 |
|