EP1339880B1 - Procede pour fabriquer une bande ou une piece decoupee dans une bande en acier maraging laminee a froid - Google Patents
Procede pour fabriquer une bande ou une piece decoupee dans une bande en acier maraging laminee a froid Download PDFInfo
- Publication number
- EP1339880B1 EP1339880B1 EP01996631A EP01996631A EP1339880B1 EP 1339880 B1 EP1339880 B1 EP 1339880B1 EP 01996631 A EP01996631 A EP 01996631A EP 01996631 A EP01996631 A EP 01996631A EP 1339880 B1 EP1339880 B1 EP 1339880B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- strip
- heat treatment
- steel
- process according
- hardening heat
- 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
- 238000000034 method Methods 0.000 title claims description 22
- 229910001240 Maraging steel Inorganic materials 0.000 title claims description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 14
- 239000010959 steel Substances 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 229910052719 titanium Inorganic materials 0.000 claims description 10
- 229910052782 aluminium Inorganic materials 0.000 claims description 9
- 238000005121 nitriding Methods 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 8
- 229910052739 hydrogen Inorganic materials 0.000 claims description 7
- 239000012535 impurity Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 238000001953 recrystallisation Methods 0.000 claims description 6
- 229910052717 sulfur Inorganic materials 0.000 claims description 6
- 238000000137 annealing Methods 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 229910052698 phosphorus Inorganic materials 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 238000005097 cold rolling Methods 0.000 claims description 4
- 229910052748 manganese Inorganic materials 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000003723 Smelting Methods 0.000 claims 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 29
- 229910052750 molybdenum Inorganic materials 0.000 description 14
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 13
- 239000011733 molybdenum Substances 0.000 description 12
- 239000010936 titanium Substances 0.000 description 10
- 229910017052 cobalt Inorganic materials 0.000 description 9
- 239000010941 cobalt Substances 0.000 description 9
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 9
- 229910052759 nickel Inorganic materials 0.000 description 8
- 230000002349 favourable effect Effects 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 5
- 230000009466 transformation Effects 0.000 description 5
- 229910052804 chromium Inorganic materials 0.000 description 3
- 239000011651 chromium Substances 0.000 description 3
- 229910000734 martensite Inorganic materials 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- 238000005482 strain hardening Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000005204 segregation Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 230000008685 targeting Effects 0.000 description 1
- 238000010313 vacuum arc remelting Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips of ferrous alloys
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/02—Hardening by precipitation
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/004—Very low carbon steels, i.e. having a carbon content of less than 0,01%
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/10—Ferrous alloys, e.g. steel alloys containing cobalt
- C22C38/105—Ferrous alloys, e.g. steel alloys containing cobalt containing Co and Ni
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2201/00—Treatment for obtaining particular effects
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0236—Cold rolling
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
- C21D8/0273—Final recrystallisation annealing
Definitions
- the present invention relates to a maraging steel particularly suitable for the manufacture of parts requiring a very good resistance to fatigue.
- maraging steels having different chemical compositions and mechanical characteristics, such as maraging steels containing 18% of nickel, 12% of cobalt, 4% of molybdenum, 1.6% titanium and 0.2% aluminum, or maraging steels containing 18% nickel, 3% molybdenum, 1.4% titanium and 0.1% aluminum, or maraging steels containing 13% chromium, 8% nickel, 2% molybdenum and 1% aluminum. But none of these steels gave satisfactory results. Fatigue suits are always lower than those made with the usual steel.
- the object of the present invention is to overcome this disadvantage and to propose a band or piece of maraging steel having improved fatigue strength.
- the subject of the invention is a method for manufacturing a strip or a piece cut from a cold-rolled maraging steel strip. According to this process, before carrying out the curing heat treatment, the strip or the part is subjected to a cold plastic deformation with a hardening rate greater than 30% and the strip or part is annealed. of recrystallization so as to obtain a fine grain of ASTM index greater than 8.
- the chemical composition of the steel comprises, by weight: 12 % ⁇ Or ⁇ 24 , 5 % 2 , 5 % ⁇ MB ⁇ 12 % 4 , 17 % ⁇ Co ⁇ 20 % al % ⁇ 0 , 15 % Ti ⁇ 0 , 1 % NOT ⁇ 0 , 003 % Yes ⁇ 0 , 1 % mn ⁇ 0 , 1 % VS ⁇ 0 , 005 % S ⁇ 0 , 001 % P ⁇ 0 , 005 % H ⁇ 0 , 0003 % O ⁇ 0 , 001 % the rest being iron and impurities resulting from the preparation, the chemical composition further satisfying the relations: 20 % ⁇ Or + MB ⁇ 27 % 50 ⁇ Co ⁇ MB ⁇ 200 Ti ⁇ NOT ⁇ 2 ⁇ 10 - 4
- the strip or the part is subjected to cold rolling with a reduction rate of between 1% and 10%.
- the maraging steel is remelted under vacuum by the VAR method or remelted a first time under vacuum by the VAR method or electroconductive slag by the ESR process and remelted a second time under vacuum by the VAR method.
- the invention also relates to a strip or piece, less than 1 mm thick, maraging steel having a fine grain ASTM index greater than 8 and a yield strength after curing greater than 1850 MPa.
- the strip or the piece thus obtained can be used for the manufacture of parts such as belts. These pieces are cured by a curing treatment at 450-550 ° C for 1-10 hours which may be followed by surface nitriding.
- the steel is made by targeting a carbon less than 0.005% and then deoxidizing aluminum.
- the steel thus produced is cast in the form of reflow electrodes.
- These electrodes are either remelted under vacuum (VAR method, “Vacuum Arc Remelting” known in itself) to form ingots or slabs, or remelted under vacuum (VAR) or electrically conductive slag (ESR process, "Electro Slag Remelting ", known in itself) to form second electrodes which are themselves remelted under vacuum (VAR) to form ingots or slabs.
- VAR method "Vacuum Arc Remelting” known in itself
- VAR remelted under vacuum
- ESR process Electrically conductive slag Remelting
- the ingots or slabs are then hot-rolled after reheating at about 1200 ° C., and for example between 1150 ° C. and 1250 ° C. to obtain hot-rolled strips a few millimeters thick, and for example about 4 , 5 mm thick.
- the hot rolled strips are pickled then cold rolled with one or more recrystallization anneals to obtain cold-rolled strips less than 1 mm thick, for example 0.4 mm or 0.2 mm thick. .
- the last intermediate recrystallization annealing treatment is carried out at such a thickness that the cold rolled strip has a work hardening rate of greater than 30% and more preferably greater than 40%.
- the thus-hardened strip is annealed, for example in the passage oven, to obtain a fine grain of ASTM index greater than 8 (corresponding to an average grain diameter of less than 20 microns), and better than 10 (corresponding to a diameter average grain less than 10 microns); the grain size being determined according to ASTM E112.
- the annealing treatment intended to obtain a fine grain is carried out under a protective atmosphere by suitably adjusting the temperature and duration parameters. These parameters depend on the particular conditions of realization of the heat treatment and those skilled in the art know how to determine these parameters in each particular case.
- the duration ie the residence time of any point of the strip in the oven
- the set temperature of the oven is between 900 ° C and 1100 ° C
- the furnace atmosphere may be argon with a lower dew temperature preferably at -50 ° C.
- the band can, in addition, be subjected to a light cold rolling with a reduction ratio of between 1% and 10%, which leads to a work hardening rate of the same value.
- the hardening treatment may also be carried out in the oven at a temperature of between 600 ° C. and 700 ° C. for a time of between 30 seconds and 3 minutes.
- the part can be cured on the surface by a nitriding treatment carried out by maintaining a few hours at 500 ° C in a nitrogen-rich reactive gas mixture.
- blanks of parts may be cut into cold-rolled strips of greater thickness than the desired final thickness for the parts. These blanks are shaped, possibly welded, then cold rolled to the final thickness so as to have a work hardening rate greater than 30% or better than 40%. The parts are then annealed under the same conditions as described above, so as to obtain a fine grain of ASTM index greater than 8, or better than 10, and then subjected to a hardening treatment as indicated below. above. The yield strength obtained is high and the resistance to fatigue is excellent.
- Pieces can also be made by cutting, for example by chemical cutting, into hardened strips. The entire process, including the curing heat treatment, is then applied to the web. These parts are, for example, integrated circuit support grids.
- the contents of nickel and molybdenum must be such that 20% ⁇ Ni + Mo ⁇ 27%, and preferably such that 22% ⁇ Ni + Mo ⁇ 25%.
- the cobalt and molybdenum contents In order to obtain a yield strength, after curing heat treatment, greater than 1850 MPa, the cobalt and molybdenum contents must be such that Co x Mo ⁇ 50, and preferably such that Co x Mo ⁇ 70. Indeed the higher the product, the higher the yield strength. But, in order to obtain sufficient ductility, the cobalt and molybdenum contents must be such that Co x Mo ⁇ 200, and preferably such that Co x Mo ⁇ 120. These values respectively correspond to yield strengths of less than approximately 3000 MPa. and 2500 MPa.
- the residual elements must be rigorously controlled to obtain good ductility and fatigue resistance properties. These limitations include: al % ⁇ 0 , 15 % Ti ⁇ 0 , 1 % NOT ⁇ 0 , 003 % Yes ⁇ 0 , 1 % mn ⁇ 0 , 1 % VS ⁇ 0 , 005 % S ⁇ 0 , 001 % P ⁇ 0 , 005 % H ⁇ 0 , 0003 % O ⁇ 0 , 001 %
- the minimum content may be 0% or traces.
- the nitrogen and titanium contents must be such that: Ti x N ⁇ 2 x 10 -4 , or better, ⁇ 1 x 10 -4 .
- a first band A given by way of example, was annealed with hydrogen passage at 1020 ° C for 1 minute to obtain a fine grain of ASTM 11 index and then cured by holding at 490 ° C for 3 hours.
- a second strip B given for comparison, was pass-annealed at 1150 ° C for 1 minute to obtain a coarse grain of ASTM 7 index and then cured by holding at 490 ° C for 3 hours.
- the fatigue limit was greater than 8 ⁇ 10 8 cycles, whereas for the band B the fatigue limit was 5 ⁇ 10 8 cycles.
- Both bands A and B had a yield strength greater than 1850 MPa.
- a maraging steel strip containing 18% nickel, 9% cobalt and 5% molybdenum was also manufactured. 0.5% titanium and 0.1% aluminum.
- This tape was made by the process according to the invention, the grain had an ASTM index of 10 and the yield strength was 1910 MPa. The fatigue limit measured under the same test conditions as in the previous case was 2 x 10 8 cycles.
- These strips can advantageously be used to manufacture belts or any other product, such as integrated circuit support grids.
- transmission belts for an internal combustion engine consisting of jumpers held by rings consisting of narrow strips in accordance with the invention and whose two ends are welded have been manufactured.
- These belts have a lifespan more than ten times longer than the life of identical belts but manufactured with maraging steel strips according to the prior art.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Manufacturing Of Steel Electrode Plates (AREA)
- Soft Magnetic Materials (AREA)
- Heat Treatment Of Articles (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CY20071101302T CY1106925T1 (el) | 2000-11-17 | 2007-09-10 | Διαδικασια για την κατασκευη μιας ταινιας ή ενος τεμαχιου που κοβεται απο μια ταινια χαλυβα μαρτεγηρανσης ψυχρης ελασης |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0014807 | 2000-11-17 | ||
| FR0014807A FR2816959B1 (fr) | 2000-11-17 | 2000-11-17 | Procede pour fabriquer une bande ou une piece decoupee dans une bande en acier maraging laminee a froid |
| PCT/FR2001/003595 WO2002040722A1 (fr) | 2000-11-17 | 2001-11-16 | Procede pour fabriquer une bande ou une piece decoupee dans une bande en acier maraging laminee a froid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1339880A1 EP1339880A1 (fr) | 2003-09-03 |
| EP1339880B1 true EP1339880B1 (fr) | 2007-07-11 |
Family
ID=8856554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01996631A Expired - Lifetime EP1339880B1 (fr) | 2000-11-17 | 2001-11-16 | Procede pour fabriquer une bande ou une piece decoupee dans une bande en acier maraging laminee a froid |
Country Status (16)
| Country | Link |
|---|---|
| US (1) | US6663730B2 (ko) |
| EP (1) | EP1339880B1 (ko) |
| JP (2) | JP4278378B2 (ko) |
| KR (2) | KR20080048544A (ko) |
| CN (1) | CN1298869C (ko) |
| AR (1) | AR034276A1 (ko) |
| AT (1) | ATE366826T1 (ko) |
| AU (1) | AU2002218382A1 (ko) |
| CY (1) | CY1106925T1 (ko) |
| DE (1) | DE60129350T2 (ko) |
| DK (1) | DK1339880T3 (ko) |
| ES (1) | ES2287187T3 (ko) |
| FR (1) | FR2816959B1 (ko) |
| PT (1) | PT1339880E (ko) |
| TW (1) | TW539746B (ko) |
| WO (1) | WO2002040722A1 (ko) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016170519A1 (fr) | 2015-04-23 | 2016-10-27 | Aperam | Acier, produit réalisé en cet acier, et son procédé de fabrication |
| WO2017064537A1 (fr) | 2015-10-15 | 2017-04-20 | Aperam | Acier, produit réalisé en cet acier, et son procédé de fabrication |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE60331111D1 (de) | 2002-11-19 | 2010-03-11 | Hitachi Metals Ltd | Verfahren zur Herstellung von martensitaushärtendem Stahl |
| GB2406891B (en) * | 2003-10-07 | 2006-09-27 | Renold Plc | A transmission chain |
| EP2180073B1 (en) * | 2007-07-11 | 2013-09-11 | Hitachi Metals, Ltd. | Maraging steel for metallic belt |
| EP2412836B1 (en) * | 2009-03-26 | 2014-12-17 | Hitachi Metals, Ltd. | Maraging steel strip |
| SI3004409T1 (sl) | 2013-06-07 | 2017-11-30 | Vdm Metals International Gmbh | Postopek za izdelavo kovinske folije |
| JP6388925B2 (ja) * | 2013-06-07 | 2018-09-12 | ファオデーエム メタルズ ゲゼルシャフト ミット ベシュレンクテル ハフツングＶＤＭ Ｍｅｔａｌｓ ＧｍｂＨ | 金属箔の製造方法 |
| CN104197105A (zh) * | 2014-08-28 | 2014-12-10 | 安徽中臣机电装备科技有限公司 | 一种不锈钢钢管 |
| NL1041468B1 (en) * | 2015-09-08 | 2017-03-22 | Bosch Gmbh Robert | Metal ring component of a drive belt for a continuously variable transmisson. |
| CN107419196B (zh) * | 2017-09-18 | 2019-12-20 | 东北大学 | 屈强比可控的超低碳易焊接中锰汽车用钢及其制备方法 |
| JP2019189927A (ja) * | 2018-04-27 | 2019-10-31 | トヨタ自動車株式会社 | 無端金属リング、及びその製造方法 |
| RU2686706C1 (ru) * | 2018-06-01 | 2019-04-30 | Общество с ограниченной отвественностью "Лаборатория специальной металлургии" (ООО "Ласмет") | Мартенситностареющая высокопрочная сталь 01Н18К9М5Т |
| CN113774289A (zh) * | 2021-08-25 | 2021-12-10 | 哈尔滨工程大学 | 一种2700MPa级高塑韧性高耐蚀马氏体时效不锈钢及其制备方法 |
| CN115786813B (zh) * | 2022-11-09 | 2024-06-11 | 成都先进金属材料产业技术研究院股份有限公司 | 一种马氏体时效钢板材及其制备方法 |
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| US3093519A (en) * | 1961-01-03 | 1963-06-11 | Int Nickel Co | Age-hardenable, martensitic iron-base alloys |
| US3178324A (en) * | 1963-06-03 | 1965-04-13 | United States Steel Corp | Method of producing ultrafine grained steel |
| US3341372A (en) * | 1965-07-12 | 1967-09-12 | Int Nickel Co | Process for heat treating cast maraging steels |
| US3642595A (en) * | 1969-09-23 | 1972-02-15 | Us Air Force | Thermal grain refinement of maraging steel |
| JPS5214518A (en) * | 1975-07-25 | 1977-02-03 | Hitachi Ltd | Process for manufacturing a rotatable drum for the centrifugal separat or for concentrating uranium |
| JPS5262119A (en) * | 1975-11-19 | 1977-05-23 | Hitachi Ltd | Process for producing rotor of centrifugal separator used for concentr ation of uranium |
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| US5792286A (en) * | 1991-12-13 | 1998-08-11 | Nkk Corporation | High-strength thin plate of iron-nickel-cobalt alloy excellent in corrosion resisitance, repeated bending behavior and etchability, and production thereof |
| FR2694303B1 (fr) | 1992-07-30 | 1994-10-21 | Metalimphy | Procédé d'élaboration d'alliages magnétiques doux à très haute perméabilité et alliages en résultant. |
| FR2733630B1 (fr) * | 1995-04-27 | 1997-05-30 | Imphy Sa | Pattes de connexion pour composant electronique |
| FR2737043B1 (fr) | 1995-07-18 | 1997-08-14 | Imphy Sa | Alliage fer-nickel pour masque d'ombre tendu |
| FR2745298B1 (fr) | 1996-02-27 | 1998-04-24 | Imphy Sa | Alliage fer-nickel et bande laminee a froid a texture cubique |
| FR2753017B1 (fr) | 1996-08-29 | 1998-10-16 | Imphy Sa | Moteur pas a pas pour horlogerie dont le stator est constitue d'un alliage magnetique doux et alliage magnetique doux |
| FR2765724B1 (fr) | 1997-07-04 | 1999-08-13 | Imphy Sa | Alliage magnetique doux du type fe-ni-cr-ti pour circuit magnetique d'un relais a haute sensibilite |
| FR2774099B1 (fr) * | 1998-01-23 | 2000-02-25 | Imphy Sa | Acier maraging sans cobalt |
| IL128067A (en) | 1998-02-05 | 2001-10-31 | Imphy Ugine Precision | Iron-cobalt alloy |
| FR2786504B1 (fr) | 1998-12-01 | 2001-01-05 | Imphy Sa | Recipient culinaire pour chauffage par induction et alliage pour realiser un tel recipient |
| US6350293B1 (en) * | 1999-02-23 | 2002-02-26 | General Electric Company | Bottom pour electroslag refining systems and methods |
| DE10010383B4 (de) * | 1999-03-04 | 2004-09-16 | Honda Giken Kogyo K.K. | Verfahren zur Herstellung von Maraging-Stahl |
| FR2791704B1 (fr) | 1999-04-02 | 2001-05-25 | Imphy Ugine Precision | Alliage magnetique doux pour horlogerie |
| JP4178490B2 (ja) * | 1999-06-08 | 2008-11-12 | 日立金属株式会社 | 高疲労強度を有するマルエージング鋼ならびにそれを用いたマルエージング鋼帯 |
| JP4427772B2 (ja) * | 1999-12-24 | 2010-03-10 | 日立金属株式会社 | 高疲労強度を有するマルエージング鋼ならびにそれを用いたマルエージング鋼帯 |
| DE60033772T2 (de) * | 1999-12-24 | 2007-10-31 | Hitachi Metals, Ltd. | Martensitaushärtender Stahl mit hoher Dauerfestigkeit und Band aus dem martensitaushärtenden Stahl |
| JP4507149B2 (ja) * | 1999-12-24 | 2010-07-21 | 日立金属株式会社 | 高疲労強度を有する動力伝達ベルト用マルエージング鋼ならびにそれを用いた動力伝達ベルト用マルエージング鋼帯 |
-
2000
- 2000-11-17 FR FR0014807A patent/FR2816959B1/fr not_active Expired - Lifetime
-
2001
- 2001-11-16 AR ARP010105379A patent/AR034276A1/es unknown
- 2001-11-16 CN CNB018188265A patent/CN1298869C/zh not_active Expired - Lifetime
- 2001-11-16 EP EP01996631A patent/EP1339880B1/fr not_active Expired - Lifetime
- 2001-11-16 AU AU2002218382A patent/AU2002218382A1/en not_active Abandoned
- 2001-11-16 AT AT01996631T patent/ATE366826T1/de active
- 2001-11-16 KR KR1020087009332A patent/KR20080048544A/ko not_active Application Discontinuation
- 2001-11-16 PT PT01996631T patent/PT1339880E/pt unknown
- 2001-11-16 KR KR1020037006549A patent/KR100884639B1/ko active IP Right Grant
- 2001-11-16 DE DE60129350T patent/DE60129350T2/de not_active Expired - Lifetime
- 2001-11-16 ES ES01996631T patent/ES2287187T3/es not_active Expired - Lifetime
- 2001-11-16 TW TW090128454A patent/TW539746B/zh active
- 2001-11-16 JP JP2002543031A patent/JP4278378B2/ja not_active Expired - Lifetime
- 2001-11-16 WO PCT/FR2001/003595 patent/WO2002040722A1/fr active IP Right Grant
- 2001-11-16 DK DK01996631T patent/DK1339880T3/da active
- 2001-11-19 US US09/988,134 patent/US6663730B2/en not_active Expired - Lifetime
-
2007
- 2007-09-10 CY CY20071101302T patent/CY1106925T1/el unknown
-
2008
- 2008-04-25 JP JP2008115217A patent/JP4965502B2/ja not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| None * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016170519A1 (fr) | 2015-04-23 | 2016-10-27 | Aperam | Acier, produit réalisé en cet acier, et son procédé de fabrication |
| WO2016170397A1 (fr) | 2015-04-23 | 2016-10-27 | Aperam | Acier, produit réalisé en cet acier, et son procédé de fabrication |
| WO2017064537A1 (fr) | 2015-10-15 | 2017-04-20 | Aperam | Acier, produit réalisé en cet acier, et son procédé de fabrication |
| WO2017064684A1 (fr) | 2015-10-15 | 2017-04-20 | Aperam | Acier, produit réalisé en cet acier, et son procédé de fabrication |
| CN108138286A (zh) * | 2015-10-15 | 2018-06-08 | 艾普伦 | 钢、所述钢制造的产品及其制造方法 |
| US10731231B2 (en) | 2015-10-15 | 2020-08-04 | Aperam | Steel, product created from said steel, and manufacturing method thereof |
| CN116024505A (zh) * | 2015-10-15 | 2023-04-28 | 艾普伦 | 钢、所述钢制造的产品及其制造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| TW539746B (en) | 2003-07-01 |
| EP1339880A1 (fr) | 2003-09-03 |
| WO2002040722A1 (fr) | 2002-05-23 |
| KR20030055303A (ko) | 2003-07-02 |
| DK1339880T3 (da) | 2007-09-10 |
| ATE366826T1 (de) | 2007-08-15 |
| JP2004514056A (ja) | 2004-05-13 |
| CY1106925T1 (el) | 2012-09-26 |
| CN1630732A (zh) | 2005-06-22 |
| FR2816959B1 (fr) | 2003-08-01 |
| JP2008274436A (ja) | 2008-11-13 |
| CN1298869C (zh) | 2007-02-07 |
| AR034276A1 (es) | 2004-02-18 |
| ES2287187T3 (es) | 2007-12-16 |
| AU2002218382A1 (en) | 2002-05-27 |
| KR20080048544A (ko) | 2008-06-02 |
| US6663730B2 (en) | 2003-12-16 |
| JP4965502B2 (ja) | 2012-07-04 |
| KR100884639B1 (ko) | 2009-02-23 |
| DE60129350D1 (de) | 2007-08-23 |
| FR2816959A1 (fr) | 2002-05-24 |
| PT1339880E (pt) | 2007-08-13 |
| JP4278378B2 (ja) | 2009-06-10 |
| DE60129350T2 (de) | 2008-03-13 |
| US20020059967A1 (en) | 2002-05-23 |
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