US2139515A - Alloys for addition to iron and steel - Google Patents
Alloys for addition to iron and steel Download PDFInfo
- Publication number
- US2139515A US2139515A US204190A US20419038A US2139515A US 2139515 A US2139515 A US 2139515A US 204190 A US204190 A US 204190A US 20419038 A US20419038 A US 20419038A US 2139515 A US2139515 A US 2139515A
- Authority
- US
- United States
- Prior art keywords
- iron
- steel
- silicon
- zirconium
- titanium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title description 46
- 229910052742 iron Inorganic materials 0.000 title description 22
- 229910045601 alloy Inorganic materials 0.000 title description 16
- 239000000956 alloy Substances 0.000 title description 16
- 229910000831 Steel Inorganic materials 0.000 title description 12
- 239000010959 steel Substances 0.000 title description 12
- 239000010936 titanium Substances 0.000 description 15
- 229910052719 titanium Inorganic materials 0.000 description 15
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 14
- 229910052710 silicon Inorganic materials 0.000 description 14
- 239000010703 silicon Substances 0.000 description 14
- 229910052726 zirconium Inorganic materials 0.000 description 14
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 13
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 12
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- 239000012535 impurity Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 241000282326 Felis catus Species 0.000 description 1
- 229910000519 Ferrosilicon Inorganic materials 0.000 description 1
- WNMKSPOOQSCFMI-UHFFFAOYSA-N [Zr].[Si].[Fe] Chemical compound [Zr].[Si].[Fe] WNMKSPOOQSCFMI-UHFFFAOYSA-N 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 229910001337 iron nitride Inorganic materials 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002516 radical scavenger Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000002000 scavenging effect Effects 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/06—Deoxidising, e.g. killing
Definitions
- the present application is a continuatiomm- Manganese 0.76
- ferro-silicon, form-titanium, ferrozirconium, iron-silicon-zirconium, and ironsilicon-titanium for the purpose of scavenging molten steel and iron is very well-known and is more or less generally employed in steel and iron 15 manufacturing practice. Their use, however, in-
- iron silill cates titanium cyanonitrides, and zirconium cyanonitrides
- the amount of non-metallicsremaina ing entrapped in the metal is not always the 85 same. Therefore, iron and steel alloys are obtained which have varying physical qualities
- My alloy not only acts as a scavenger in molten iron and steel, 1. e., removes the various impuritiesin the molten metal but also serves to control the grain size of the treated product. 45; While my alloy is composed of silicon, titanium, zirconium and iron and is substantially free from 'carbon, there may be present small percentages of other elements incidental to'the method of production. or inv the raw materials used. .For example, the chemical composition or one melt of this alloy which may be considered typical in respect to the presence or the other metals, is:
- vention consists of an alloy with a minimum amount of carboni-so as to be substantially free from carbon, and contains about 25% to 60% silicon, preferably about 25% to 45% silicon, about 5% to or titanium, and about 5% to 20% or 25% zirconium. In no case, however, does the sum of the silicon, titanium and zirconium exceed 85%.
- the percentage of silicon is at least equal to or greater than the percentage of either the titanium or zirconium.
- the remainder of the alloy is principally iron, although usual impurities or small amounts of other alloying elements may be present.
- An alloy for addition to iron and steel containing about 25% to 60% silicon, about 5% to 25% titanium, about 5% to 25% zirconium, the sum of the silicon, titanium and zirconium not exceeding 85%, and not over about 4.0% carbon, the remainder being principally iron.
- An alloy for addition to iron and steel containing about 25% to 60% silicon, about 5% to 25% titanium, about 5% to 25% zirconium, the sum of the silicon, titanium and zirconium not exceeding 85%, and not over about 1.0% carbo the remainder being principally iron.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Description
Patented Dec. 6, 1938 PATENT OFFICE 2,139,515 I ALLOYS roe ADDITION 'ro mos AND STEEL George L. Norris, Scarsdale, N. Y., assignor to Vanadium Corporation oi America, Bridgeville, Pa., a. corporation oi Delaware No Drawing. Application April 25, 1938, Serial 3 Claims. (01. 75-58) This invention relates to an alloy containing Per cent silicon, titanium, zirconium, and iron, and esp- Silicon" V 40.28 cially to an alloy suitable for addition to molten Titanium 10.62 iron and steel for the purpose of obtaining a Zirconium 10.49
5 more sound, dense and clean metal when such Carbon 0.07 steel or iron solidifies. Aluminum 1.53
The present application is a continuatiomm- Manganese 0.76
part of my copending application, Serial No. Iron Balance 128,230, filed February 27, 1937.
The use of ferro-silicon, form-titanium, ferrozirconium, iron-silicon-zirconium, and ironsilicon-titanium for the purpose of scavenging molten steel and iron is very well-known and is more or less generally employed in steel and iron 15 manufacturing practice. Their use, however, in-
volves very marked deficiencies so that, while they free the molten metal of impurities, such as iron oxide and iron nitride by chemically reacting with these compounds, the products: iron silill cates, titanium cyanonitrides, and zirconium cyanonitrides, remain entrapped in the metal, thereby imparting to it several objectionable qualities. The amount of non-metallicsremaina ing entrapped in the metal is not always the 85 same. Therefore, iron and steel alloys are obtained which have varying physical qualities,
such as ductility, although of the same chemical composition. 1 I have discovered that, the combination of all 80 three elements-silicon, titanium and zirconium --with iron, in proper proportions, produces an alloy which when added to molten iron and steel reacts with; gaseous and other impurities in the molten metals to form reaction products I5 which more readily coagulate and separate from the molten iron or steel. My alloy is readily soluble in molten iron or steel andis more efiectlve and economical than alloys containing only oneor two of the elements silicon, titanium 40 and zirconium in combination with iron.
My alloy not only acts as a scavenger in molten iron and steel, 1. e., removes the various impuritiesin the molten metal but also serves to control the grain size of the treated product. 45; While my alloy is composed of silicon, titanium, zirconium and iron and is substantially free from 'carbon, there may be present small percentages of other elements incidental to'the method of production. or inv the raw materials used. .For example, the chemical composition or one melt of this alloy which may be considered typical in respect to the presence or the other metals, is:
vention consists of an alloy with a minimum amount of carboni-so as to be substantially free from carbon, and contains about 25% to 60% silicon, preferably about 25% to 45% silicon, about 5% to or titanium, and about 5% to 20% or 25% zirconium. In no case, however, does the sum of the silicon, titanium and zirconium exceed 85%. The percentage of silicon is at least equal to or greater than the percentage of either the titanium or zirconium. The remainder of the alloy is principally iron, although usual impurities or small amounts of other alloying elements may be present.
While I have described my alloy in its preferred composition, it is to be understood that the invention is not so limited, but may be otherwise embodied withln the scope of the following claims.
I claim:
1. An alloy for addition to iron and steel, containing about 25% to 60% silicon, about 5% to 25% titanium, about 5% to 25% zirconium, the sum of the silicon, titanium and zirconium not exceeding 85%, and not over about 4.0% carbon, the remainder being principally iron.
2. An alloy for addition to iron and steel, containing about 25% to 60% silicon, about 5% to 25% titanium, about 5% to 25% zirconium, the sum of the silicon, titanium and zirconium not exceeding 85%, and not over about 1.0% carbo the remainder being principally iron.
3. An'alloy for addition to iron and steeLcontaining about 25% to 45% silicon, about 5% to 20% tianium, about 5% to 20% zirconium, and not over about 0.15% carbon, the remainder being principally iron.
GEORGE L. NORRIS.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US204190A US2139515A (en) | 1938-04-25 | 1938-04-25 | Alloys for addition to iron and steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US204190A US2139515A (en) | 1938-04-25 | 1938-04-25 | Alloys for addition to iron and steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2139515A true US2139515A (en) | 1938-12-06 |
Family
ID=22756980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US204190A Expired - Lifetime US2139515A (en) | 1938-04-25 | 1938-04-25 | Alloys for addition to iron and steel |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US2139515A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3765875A (en) * | 1970-07-23 | 1973-10-16 | L Septier | Inoculating alloy for cast irons |
-
1938
- 1938-04-25 US US204190A patent/US2139515A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3765875A (en) * | 1970-07-23 | 1973-10-16 | L Septier | Inoculating alloy for cast irons |
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