US3771975A - Sinter metal alloy - Google Patents
Sinter metal alloy Download PDFInfo
- Publication number
- US3771975A US3771975A US00161929A US3771975DA US3771975A US 3771975 A US3771975 A US 3771975A US 00161929 A US00161929 A US 00161929A US 3771975D A US3771975D A US 3771975DA US 3771975 A US3771975 A US 3771975A
- Authority
- US
- United States
- Prior art keywords
- percent
- titanium
- metal alloy
- weight
- chromium
- 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
- 229910001092 metal group alloy Inorganic materials 0.000 title claims abstract description 19
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 15
- 239000010936 titanium Substances 0.000 claims abstract description 13
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 13
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 12
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 12
- 239000011651 chromium Substances 0.000 claims abstract description 12
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052796 boron Inorganic materials 0.000 claims abstract description 9
- 239000010949 copper Substances 0.000 claims abstract description 9
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 9
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 7
- 239000011733 molybdenum Substances 0.000 claims abstract description 7
- 229910052742 iron Inorganic materials 0.000 claims abstract description 6
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 5
- 239000010955 niobium Substances 0.000 claims abstract description 5
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims abstract description 5
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 5
- 239000010937 tungsten Substances 0.000 claims abstract description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 7
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 claims description 5
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 3
- 229910000990 Ni alloy Inorganic materials 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 abstract description 12
- 239000000956 alloy Substances 0.000 abstract description 12
- 150000001247 metal acetylides Chemical class 0.000 abstract description 10
- 230000005484 gravity Effects 0.000 abstract description 8
- 230000007797 corrosion Effects 0.000 abstract description 7
- 238000005260 corrosion Methods 0.000 abstract description 7
- 229910052720 vanadium Inorganic materials 0.000 abstract description 5
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 abstract description 5
- 229910052715 tantalum Inorganic materials 0.000 abstract description 4
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 abstract description 4
- 239000004411 aluminium Substances 0.000 abstract description 2
- 229910052782 aluminium Inorganic materials 0.000 abstract description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 2
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 239000011230 binding agent Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 229910021332 silicide Inorganic materials 0.000 description 2
- QIJNJJZPYXGIQM-UHFFFAOYSA-N 1lambda4,2lambda4-dimolybdacyclopropa-1,2,3-triene Chemical compound [Mo]=C=[Mo] QIJNJJZPYXGIQM-UHFFFAOYSA-N 0.000 description 1
- NGNBDVOYPDDBFK-UHFFFAOYSA-N 2-[2,4-di(pentan-2-yl)phenoxy]acetyl chloride Chemical compound CCCC(C)C1=CC=C(OCC(Cl)=O)C(C(C)CCC)=C1 NGNBDVOYPDDBFK-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 229910039444 MoC Inorganic materials 0.000 description 1
- 229910001275 Niobium-titanium Inorganic materials 0.000 description 1
- 206010041662 Splinter Diseases 0.000 description 1
- DZZDTRZOOBJSSG-UHFFFAOYSA-N [Ta].[W] Chemical compound [Ta].[W] DZZDTRZOOBJSSG-UHFFFAOYSA-N 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- RJSRQTFBFAJJIL-UHFFFAOYSA-N niobium titanium Chemical compound [Ti].[Nb] RJSRQTFBFAJJIL-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- -1 titanium carbides Chemical class 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
- C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
- C22C29/067—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds comprising a particular metallic binder
Definitions
- ABSTRACT [30] Foreign Application Priority Data July 16 1970 Germany P 20 35 266 5
- Very hard, corrosion-resistant low specific gravity sinter alloys comprise a major proportion of one or more 152 11.5.131. 29/182.7 29/182 8 carbides of titanium chmmium and vanadium and a [51] Int.
- Cl B22f 3/00 minor proportion of an austenitic metal alloy contain [58] Field of Search l l U 29/182 5 182 7 ing 0.2 to 1.2 percent Cu, 0.2 to 1.2 percent of niobi- I I i 6 um/tantalum and/or titanium, 0.5 to 29 percent molybdcnum, 0.005 to 0.1 percent boron, 10 to 66 per- [56] References Cited cent nickel, and optionally carbon, chromium, alumin- UNITED STATES PATENTS ium, manganese, tungsten and iron.
- the invention relates to a sinter metal alloy that is very hard and tough, resistant to corrosion and also has a low specific gravity, and which comprises one or more of the carbides titanium, chromium and vanadium and an austenitic alloy as hereinafter set forth.
- the alloy of the present invention in addition to high wear resistance and resistance to corrosion, possesses maximum toughness allied with low specific gravity.
- Other features of the alloy are high compressive strength and hardness and oxidation resistance. Such characteristics are required by bearing materials exposed to high temperatures, or materials for making balls for ball mills.
- Ceramic materials made of oxides such as alumina and silica; metal carbides such as tungsten-tantalum, niobium-titanium or molybdenum carbide; or borides, nitrides and silicides only partly meet the above stated requirements. Thus ceramic materials are too brittle, they easily splinter and their compressive strength and wear resistance are insufficient. Pure carbides are likewise too brittle and in the majority of instances have too high a specific gravity. Hard metals consisting of metal carbides and metal binders usually have too high a specific gravity and lack corrosion resistance. Hard metals based on titanium carbides with metallic binders have low specific gravities, but they lack toughness and corrosion resistance. Borides, nitrides and silicides individually are as brittle as glass and therefore are likewise unsuitable for the purposes of the present invention. Metal alloys do not comply with the desired properties because they lack compressive strength and hardness.
- the invention provides a sinter metal alloy comprising 55 to 80 percent by weight of one or more of the carbides of titanium, chromium and vanadium in the form of individual or mixed carbides and 45 to 20 percent by weight of an austenitic metal alloy consisting essentially of to 0.08 carbon 0.2 to 1.8 copper 0.2 to 1.2 niobium/tantalum and/or titanium 0.5 to 29 molybdenum 0.005 to 0.1 boron 0 to 23 chromium 0 to 1.7 aluminium 0 to 1.9 manganese 0 to 6.8 tungsten 0 to 68 iron to 66 nickel.
- a preferred alloy according to the invention comprises about 70 percent by weight of titanium carbide containing less than 0.01 percent of free carbon and 30 percent by weight of an austenitic nickel alloy consisting essentially of 16.8 chromium 16.8 molybdenum 0.8 copper 4.7 tungsten 0.3 niobium 0.03 carbon 0.02 boron balance nickel.
- a further preferred alloy according to the invention comprises about percent by weight of titanium carbide containing less than 0.01 percent free carbon and 30 percent by weight of an austenitic steel alloy consisting essentially of 18.0 chromium 1.0 molybdenum 0.8 copper 12.0 nickel 0.3 titanium 0.01 boron 0.03 carbon balance iron.
- the specific gravity of the said preferred alloys is 5.80 g/cc., the hardness thereof is between 70 and 72 Re, the compressive strength from 300 to 350 lrg/mm and the corrosion resistance, particularly under reducing conditions to halides, acid chloride solutions and hydrochloric acid, is satisfactory.
- the toughness of the sinter metal alloys according to the invention was tested on sintered balls which were dropped or projected from a height of 10 metres onto a concrete slab. The balls bounced to regain their original height without any tendency of splintering.
- Sinter metal alloys according to the invention may be produced in conventional manner by first pre-grinding the alloying components to a maximum of 6 ,u., the carbide component and the several elements or key alloys of the binder metal alloy are then wet ground in attrition mills to a final grain size of not more than 3 p. with a large proportion of fines and then dried, the milling liquid being expelled in a vacuum dryer.
- the thusground components are then mixed, and the mixture thoroughly kneaded with the addition of a liquid to the powder whereby granulation is effected and fiowability is improved, and the granular mixture is then compacted using a mechanical or isostatic press, and the compacts thus obtained are then sintered to form an alloy and a crystalline solid solution, in a vacuum sintering furnace under a pressure of less than 10 torr at a temperature of from 1250 to 1350C for a total, i.e. heating, holding and cooling, time of 8 to 48 hours.
- the alloy may be used for instance as a material for making balls for ball mills which are to work in a neutral, oxidising or corrosive atmosphere, e.g. at a temperature of up to 800C.
- the alloy is also suitable for parts that in use are exposed to high temperatures, for example ball bearings, roller bearings, thrust bearings, slideways and gas bearings.
- Due to the austenitic structure of the binder metal alloy the sinter metal alloys according to the invention can be used for parts that must be non-magnetic, for instance for the punches or dies of presses that operate in a magnetic field.
- a sinter metal alloy that comprises 55 to percent by weight of one or more of the carbides of titanium, chromium and vanadium in the form of individual or mixed carbides and 45 to 20 percent by weight of an austenitic metal alloy consisting essentially of 0 to 0.08 carbon 0.2 to 1.8 copper 0.2 to 1.2 niobium/tantalum and/or titanium 0.03 carbon 0.02 boron balance nickel.
- a sinter metal alloy according to claim 1 compris- 5 ing about 70 percent by weight of titanium carbide containing lessthan 0.01 percent free carbon and 30 percent by weight of an austenitic steel alloy consisting essentially of 18.0 chromium 1.0 molybdenum 0.8 copper 12.0 nickel 0.3 titanium 0.01 boron 0.03 carbon balance iron.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19702035226 DE2035226C (de) | 1970-07-16 | Verwendung einer Sintermetallegierung fur verschleißfeste, mechanisch und korro sionschemisch hoch beanspruchte Gegenstande mit geringer Dichte |
Publications (1)
Publication Number | Publication Date |
---|---|
US3771975A true US3771975A (en) | 1973-11-13 |
Family
ID=5776908
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00161929A Expired - Lifetime US3771975A (en) | 1970-07-16 | 1971-07-09 | Sinter metal alloy |
Country Status (5)
Country | Link |
---|---|
US (1) | US3771975A (enrdf_load_stackoverflow) |
CH (1) | CH564092A5 (enrdf_load_stackoverflow) |
CS (1) | CS152401B2 (enrdf_load_stackoverflow) |
FR (1) | FR2101566A5 (enrdf_load_stackoverflow) |
GB (1) | GB1295005A (enrdf_load_stackoverflow) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3967935A (en) * | 1972-09-11 | 1976-07-06 | Deutsche Edelstahlwerke Gesellschaft Mit Beschrankter Haftung | Corrosion and wear resistant steel sinter alloy |
US4019874A (en) * | 1975-11-24 | 1977-04-26 | Ford Motor Company | Cemented titanium carbide tool for intermittent cutting application |
US4466829A (en) * | 1981-04-06 | 1984-08-21 | Mitsubishi Kinzoku Kabushiki Kaisha | Tungsten carbide-base hard alloy for hot-working apparatus members |
US4650353A (en) * | 1982-05-24 | 1987-03-17 | Gte Products Corporation | Printer wire |
US4963183A (en) * | 1989-03-03 | 1990-10-16 | Gte Valenite Corporation | Corrosion resistant cemented carbide |
US5273571A (en) * | 1992-12-21 | 1993-12-28 | Valenite Inc. | Nonmagnetic nickel tungsten cemented carbide compositions and articles made from the same |
US6793705B2 (en) | 2001-10-24 | 2004-09-21 | Keystone Investment Corporation | Powder metal materials having high temperature wear and corrosion resistance |
CN102773489A (zh) * | 2012-07-30 | 2012-11-14 | 四川材料与工艺研究所 | 一种高纯超细钒铬钛混合粉的制备方法 |
CN106521286A (zh) * | 2016-11-09 | 2017-03-22 | 安徽孺子牛轴承有限公司 | 一种用于云台电机的轴承材料及其制备方法 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2630266C3 (de) * | 1976-07-06 | 1979-10-31 | Thyssen Edelstahlwerke Ag, 4000 Duesseldorf | Verwendung einer Sinterstahllegierung für Werkzeuge und Verschleißteile |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3369891A (en) * | 1965-08-20 | 1968-02-20 | Chromalloy American Corp | Heat-treatable nickel-containing refractory carbide tool steel |
US3380861A (en) * | 1964-05-06 | 1968-04-30 | Deutsche Edelstahlwerke Ag | Sintered steel-bonded carbide hard alloys |
US3522020A (en) * | 1966-01-03 | 1970-07-28 | Iit Res Inst | Stainless steels |
US3591362A (en) * | 1968-03-01 | 1971-07-06 | Int Nickel Co | Composite metal powder |
US3623849A (en) * | 1969-08-25 | 1971-11-30 | Int Nickel Co | Sintered refractory articles of manufacture |
-
1971
- 1971-06-11 CH CH856971A patent/CH564092A5/xx not_active IP Right Cessation
- 1971-06-29 GB GB1295005D patent/GB1295005A/en not_active Expired
- 1971-07-01 CS CS4854A patent/CS152401B2/cs unknown
- 1971-07-09 US US00161929A patent/US3771975A/en not_active Expired - Lifetime
- 1971-07-12 FR FR7125428A patent/FR2101566A5/fr not_active Expired
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3380861A (en) * | 1964-05-06 | 1968-04-30 | Deutsche Edelstahlwerke Ag | Sintered steel-bonded carbide hard alloys |
US3369891A (en) * | 1965-08-20 | 1968-02-20 | Chromalloy American Corp | Heat-treatable nickel-containing refractory carbide tool steel |
US3522020A (en) * | 1966-01-03 | 1970-07-28 | Iit Res Inst | Stainless steels |
US3591362A (en) * | 1968-03-01 | 1971-07-06 | Int Nickel Co | Composite metal powder |
US3623849A (en) * | 1969-08-25 | 1971-11-30 | Int Nickel Co | Sintered refractory articles of manufacture |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3967935A (en) * | 1972-09-11 | 1976-07-06 | Deutsche Edelstahlwerke Gesellschaft Mit Beschrankter Haftung | Corrosion and wear resistant steel sinter alloy |
US4019874A (en) * | 1975-11-24 | 1977-04-26 | Ford Motor Company | Cemented titanium carbide tool for intermittent cutting application |
US4466829A (en) * | 1981-04-06 | 1984-08-21 | Mitsubishi Kinzoku Kabushiki Kaisha | Tungsten carbide-base hard alloy for hot-working apparatus members |
US4650353A (en) * | 1982-05-24 | 1987-03-17 | Gte Products Corporation | Printer wire |
US4963183A (en) * | 1989-03-03 | 1990-10-16 | Gte Valenite Corporation | Corrosion resistant cemented carbide |
US5273571A (en) * | 1992-12-21 | 1993-12-28 | Valenite Inc. | Nonmagnetic nickel tungsten cemented carbide compositions and articles made from the same |
US6793705B2 (en) | 2001-10-24 | 2004-09-21 | Keystone Investment Corporation | Powder metal materials having high temperature wear and corrosion resistance |
CN102773489A (zh) * | 2012-07-30 | 2012-11-14 | 四川材料与工艺研究所 | 一种高纯超细钒铬钛混合粉的制备方法 |
CN102773489B (zh) * | 2012-07-30 | 2013-11-06 | 四川材料与工艺研究所 | 一种高纯超细钒铬钛混合粉的制备方法 |
CN106521286A (zh) * | 2016-11-09 | 2017-03-22 | 安徽孺子牛轴承有限公司 | 一种用于云台电机的轴承材料及其制备方法 |
Also Published As
Publication number | Publication date |
---|---|
DE2035226A1 (enrdf_load_stackoverflow) | 1972-04-27 |
CH564092A5 (enrdf_load_stackoverflow) | 1975-07-15 |
GB1295005A (enrdf_load_stackoverflow) | 1972-11-01 |
FR2101566A5 (enrdf_load_stackoverflow) | 1972-03-31 |
CS152401B2 (enrdf_load_stackoverflow) | 1973-12-19 |
DE2035226B2 (de) | 1972-04-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Li et al. | Microstructure and properties of Ti (C, N)–TiB2–FeCoCrNiAl high-entropy alloys composite cermets | |
US5045512A (en) | Mixed sintered metal materials based on borides, nitrides and iron binder metals | |
US6030429A (en) | Hard sintered alloy | |
US2814566A (en) | Boron and carbon containing hard cemented materials and their production | |
US3967935A (en) | Corrosion and wear resistant steel sinter alloy | |
US3838981A (en) | Wear-resistant power metallurgy nickel-base alloy | |
US3676161A (en) | Refractories bonded with aluminides,nickelides,or titanides | |
US3771975A (en) | Sinter metal alloy | |
US3551991A (en) | Infiltrated cemented carbides | |
JP2668955B2 (ja) | 複硼化物基焼結体及びその製造方法 | |
JPH068484B2 (ja) | 加工可能なホウ素含有ステンレス鋼合金から製造される物品及びその製造方法 | |
US3737289A (en) | Carbide alloy | |
US2840891A (en) | High temperature structural material and method of producing same | |
US4131450A (en) | Process for manufacturing cobalt-base reduced powder | |
US3737290A (en) | Sintered titanium alloy | |
Gurwell | Solid-state sintering of tungsten heavy alloys | |
US4880600A (en) | Method of making and using a titanium diboride comprising body | |
US3554740A (en) | Nickel-aluminum electrical resistance elements | |
US4859124A (en) | Method of cutting using a titanium diboride body | |
US3510276A (en) | Sintered titanium carbide bodies | |
JPS644983B2 (enrdf_load_stackoverflow) | ||
US2806800A (en) | Boron and carbon containing hard cemented materials and their production | |
JP4140928B2 (ja) | 耐摩耗性硬質焼結合金 | |
EP0323628A1 (en) | Fine grain tungsten heavy alloys containing additives | |
US5372979A (en) | Composite materials based on titanium diboride |