BRPI0815648B1 - liga de aço de engrenagem de endurecimento secundário e processo de fabricação desta - Google Patents
liga de aço de engrenagem de endurecimento secundário e processo de fabricação desta Download PDFInfo
- Publication number
- BRPI0815648B1 BRPI0815648B1 BRPI0815648A BRPI0815648A BRPI0815648B1 BR PI0815648 B1 BRPI0815648 B1 BR PI0815648B1 BR PI0815648 A BRPI0815648 A BR PI0815648A BR PI0815648 A BRPI0815648 A BR PI0815648A BR PI0815648 B1 BRPI0815648 B1 BR PI0815648B1
- Authority
- BR
- Brazil
- Prior art keywords
- alloy
- room temperature
- steel
- carburization
- hours
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- 229910000851 Alloy steel Inorganic materials 0.000 title claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 32
- 239000000956 alloy Substances 0.000 claims description 32
- 239000002244 precipitate Substances 0.000 claims description 10
- 238000005496 tempering Methods 0.000 claims description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 239000011159 matrix material Substances 0.000 claims description 7
- 230000007704 transition Effects 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 6
- 239000006185 dispersion Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 229910000734 martensite Inorganic materials 0.000 claims description 6
- 229910052804 chromium Inorganic materials 0.000 claims description 5
- 238000007654 immersion Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 229910052750 molybdenum Inorganic materials 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- -1 M2C carbides Chemical class 0.000 claims description 4
- 238000005242 forging Methods 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 229910052719 titanium Inorganic materials 0.000 claims description 4
- 238000000265 homogenisation Methods 0.000 claims description 3
- 229910052758 niobium Inorganic materials 0.000 claims description 3
- 229910052721 tungsten Inorganic materials 0.000 claims description 3
- 229910052726 zirconium Inorganic materials 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 238000004806 packaging method and process Methods 0.000 claims description 2
- 229910052720 vanadium Inorganic materials 0.000 claims description 2
- 238000000137 annealing Methods 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000005255 carburizing Methods 0.000 claims 1
- 239000012530 fluid Substances 0.000 claims 1
- 229910052759 nickel Inorganic materials 0.000 claims 1
- 238000010606 normalization Methods 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 description 35
- 239000010959 steel Substances 0.000 description 35
- 239000011162 core material Substances 0.000 description 13
- 238000012545 processing Methods 0.000 description 8
- 230000004927 fusion Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 6
- 238000001556 precipitation Methods 0.000 description 6
- 230000006698 induction Effects 0.000 description 5
- 238000010791 quenching Methods 0.000 description 5
- 230000000171 quenching effect Effects 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 230000004044 response Effects 0.000 description 3
- 239000000523 sample Substances 0.000 description 3
- 238000006748 scratching Methods 0.000 description 3
- 230000002393 scratching effect Effects 0.000 description 3
- 239000000470 constituent Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007571 dilatometry Methods 0.000 description 1
- 230000003467 diminishing effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000007542 hardness measurement Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000003325 tomography Methods 0.000 description 1
Classifications
-
- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
- C21D1/19—Hardening; Quenching with or without subsequent tempering by interrupted quenching
- C21D1/22—Martempering
-
- 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
- C21D6/004—Heat treatment of ferrous alloys containing Cr and Ni
-
- 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
- C21D6/007—Heat treatment of ferrous alloys containing Co
-
- 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
- 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
- C21D6/04—Hardening by cooling below 0 degrees Celsius
-
- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/32—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for gear wheels, worm wheels, or the like
-
- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/52—Ferrous alloys, e.g. steel alloys containing chromium with nickel with cobalt
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
- C21D1/25—Hardening, combined with annealing between 300 degrees Celsius and 600 degrees Celsius, i.e. heat refining ("Vergüten")
-
- 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
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/008—Martensite
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)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
- Heat Treatment Of Articles (AREA)
- Heat Treatment Of Steel (AREA)
- Gears, Cams (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US95730707P | 2007-08-22 | 2007-08-22 | |
| US12/194,964 US8801872B2 (en) | 2007-08-22 | 2008-08-20 | Secondary-hardening gear steel |
| PCT/US2008/073966 WO2009055133A2 (en) | 2007-08-22 | 2008-08-22 | Secondary-hardening gear steel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| BRPI0815648A2 BRPI0815648A2 (pt) | 2015-02-18 |
| BRPI0815648B1 true BRPI0815648B1 (pt) | 2017-03-28 |
Family
ID=40547343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BRPI0815648A BRPI0815648B1 (pt) | 2007-08-22 | 2008-08-22 | liga de aço de engrenagem de endurecimento secundário e processo de fabricação desta |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US8801872B2 (enExample) |
| EP (1) | EP2181199B1 (enExample) |
| JP (1) | JP5588869B2 (enExample) |
| CN (1) | CN101784681B (enExample) |
| BR (1) | BRPI0815648B1 (enExample) |
| CA (1) | CA2695472C (enExample) |
| WO (1) | WO2009055133A2 (enExample) |
Families Citing this family (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8084537B2 (en) * | 2005-03-17 | 2011-12-27 | Dow Global Technologies Llc | Polymer blends from interpolymers of ethylene/α-olefin with improved compatibility |
| CN103014724A (zh) * | 2011-09-23 | 2013-04-03 | 杨洁 | 螺纹模具强化耐磨制备方法 |
| CN104039483B (zh) | 2011-12-30 | 2017-03-01 | 思高博塔公司 | 涂层组合物 |
| US11590609B2 (en) * | 2012-01-18 | 2023-02-28 | Purdue Research Foundation | Laser shock peening apparatuses and methods |
| WO2014059177A1 (en) | 2012-10-11 | 2014-04-17 | Scoperta, Inc. | Non-magnetic metal alloy compositions and applications |
| CN103233106B (zh) * | 2012-11-02 | 2014-08-06 | 重庆长风机器有限责任公司 | 一种钢热处理变形处理方法 |
| US9802387B2 (en) | 2013-11-26 | 2017-10-31 | Scoperta, Inc. | Corrosion resistant hardfacing alloy |
| AT515148B1 (de) | 2013-12-12 | 2016-11-15 | Böhler Edelstahl GmbH & Co KG | Verfahren zur Herstellung von Gegenständen aus Eisen-Cobalt-Molybdän/Wolfram-Stickstoff-Legierungen |
| CN104014594A (zh) * | 2014-06-06 | 2014-09-03 | 首钢总公司 | 一种解决齿轮钢棒材冷剪后侧向弯曲的方法 |
| US11130205B2 (en) | 2014-06-09 | 2021-09-28 | Oerlikon Metco (Us) Inc. | Crack resistant hardfacing alloys |
| CA2956382A1 (en) | 2014-07-24 | 2016-01-28 | Scoperta, Inc. | Impact resistant hardfacing and alloys and methods for making the same |
| US10465267B2 (en) | 2014-07-24 | 2019-11-05 | Scoperta, Inc. | Hardfacing alloys resistant to hot tearing and cracking |
| CA2971202C (en) | 2014-12-16 | 2023-08-15 | Scoperta, Inc. | Tough and wear resistant ferrous alloys containing multiple hardphases |
| WO2016126456A1 (en) | 2015-02-04 | 2016-08-11 | Sikorsky Aircraft Corporation | Methods and processes of forming gears |
| US10494708B2 (en) | 2015-04-02 | 2019-12-03 | Sikorsky Aircraft Corporation | Carburization of steel components |
| CN108350528B (zh) | 2015-09-04 | 2020-07-10 | 思高博塔公司 | 无铬和低铬耐磨合金 |
| CN107949653B (zh) | 2015-09-08 | 2021-04-13 | 思高博塔公司 | 用于粉末制造的形成非磁性强碳化物的合金 |
| MX393339B (es) | 2015-11-10 | 2025-03-24 | Scoperta Inc | Materiales de rociado por arco de dos hilos controlado por oxidación. |
| US11279996B2 (en) | 2016-03-22 | 2022-03-22 | Oerlikon Metco (Us) Inc. | Fully readable thermal spray coating |
| CN105951001A (zh) * | 2016-05-24 | 2016-09-21 | 江苏金基特钢有限公司 | 低自噪声特种钢及其加工方法 |
| CN105821341A (zh) * | 2016-05-24 | 2016-08-03 | 江苏金基特钢有限公司 | 耐磨耐蚀的特种钢及其制备方法 |
| CN105821342A (zh) * | 2016-05-24 | 2016-08-03 | 江苏金基特钢有限公司 | 耐磨易成型特种钢及其加工方法 |
| WO2019191400A1 (en) | 2018-03-29 | 2019-10-03 | Oerlikon Metco (Us) Inc. | Reduced carbides ferrous alloys |
| WO2020086971A1 (en) | 2018-10-26 | 2020-04-30 | Oerlikon Metco (Us) Inc. | Corrosion and wear resistant nickel based alloys |
| US12227853B2 (en) | 2019-03-28 | 2025-02-18 | Oerlikon Metco (Us) Inc. | Thermal spray iron-based alloys for coating engine cylinder bores |
| CN110184421A (zh) * | 2019-04-03 | 2019-08-30 | 中钢集团邢台机械轧辊有限公司 | 一种提高机床固定顶尖硬度和耐磨性的强化方法 |
| AU2020269275B2 (en) | 2019-05-03 | 2025-05-22 | Oerlikon Metco (Us) Inc. | Powder feedstock for wear resistant bulk welding configured to optimize manufacturability |
| CN110423955B (zh) * | 2019-07-29 | 2020-10-20 | 中国航发北京航空材料研究院 | 表层超硬化型超高强度耐热齿轮轴承钢及制备方法 |
| JP7478685B2 (ja) * | 2020-02-19 | 2024-05-07 | クエステック イノベーションズ リミテッド ライアビリティ カンパニー | 析出強化された浸炭可能及び窒化可能な合金鋼 |
| CN111364001A (zh) * | 2020-04-30 | 2020-07-03 | 中国航发哈尔滨东安发动机有限公司 | 一种提升x-53材料渗碳效果的工艺方法 |
| CN116426846B (zh) * | 2023-04-28 | 2024-12-24 | 东北大学 | 一种复相析出的2.4GPa含铝高钴镍二次硬化钢及其制备方法 |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2147119A (en) * | 1936-08-05 | 1939-02-14 | Cleveland Twist Drill Co | Alloy compositions |
| JPS5161B1 (enExample) * | 1967-09-18 | 1976-01-05 | ||
| CA1085190A (en) | 1977-07-13 | 1980-09-09 | Thoni V. Philip | Case-hardening alloy steel and case-hardened article made therefrom |
| US7235212B2 (en) * | 2001-02-09 | 2007-06-26 | Ques Tek Innovations, Llc | Nanocarbide precipitation strengthened ultrahigh strength, corrosion resistant, structural steels and method of making said steels |
| JPH05239602A (ja) * | 1992-02-25 | 1993-09-17 | Daido Steel Co Ltd | 高面圧部品 |
| US6221183B1 (en) * | 1992-11-16 | 2001-04-24 | Hitachi Metals, Ltd. | High-strength and low-thermal-expansion alloy, wire of the alloy and method of manufacturing the alloy wire |
| US6458220B1 (en) * | 1998-01-28 | 2002-10-01 | Northwestern University | Case hardened steel blades for sports equipment and method of manufacture |
| US6379475B1 (en) * | 1998-01-28 | 2002-04-30 | Northwestern University Business & Finance Office | Case hardened dies for improved die life |
| AU742183B2 (en) * | 1998-01-28 | 2001-12-20 | Northwestern University | Advanced case carburizing secondary hardening steels |
| US6491767B1 (en) * | 1998-01-28 | 2002-12-10 | Northwestern University | Case hardened dies for improved die life |
| ATE464403T1 (de) * | 2002-02-08 | 2010-04-15 | Questek Innovations Llc | Ultra-hochfeste, korrosionsbeständige, baustahle, verfestigt durch nanokarbid-ausscheidungen |
| US8118949B2 (en) * | 2006-02-24 | 2012-02-21 | GM Global Technology Operations LLC | Copper precipitate carburized steels and related method |
| US8758527B2 (en) * | 2006-12-15 | 2014-06-24 | Sikorsky Aircraft Corporation | Gear material for an enhanced rotorcraft drive system |
-
2008
- 2008-08-20 US US12/194,964 patent/US8801872B2/en active Active
- 2008-08-22 CN CN2008801045341A patent/CN101784681B/zh not_active Expired - Fee Related
- 2008-08-22 EP EP08843244.8A patent/EP2181199B1/en active Active
- 2008-08-22 WO PCT/US2008/073966 patent/WO2009055133A2/en not_active Ceased
- 2008-08-22 JP JP2010522059A patent/JP5588869B2/ja active Active
- 2008-08-22 BR BRPI0815648A patent/BRPI0815648B1/pt not_active IP Right Cessation
- 2008-08-22 CA CA2695472A patent/CA2695472C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| WO2009055133A3 (en) | 2009-07-23 |
| US20090199930A1 (en) | 2009-08-13 |
| BRPI0815648A2 (pt) | 2015-02-18 |
| EP2181199A2 (en) | 2010-05-05 |
| CN101784681B (zh) | 2012-07-25 |
| CA2695472C (en) | 2013-10-15 |
| JP2010537050A (ja) | 2010-12-02 |
| CA2695472A1 (en) | 2009-04-30 |
| CN101784681A (zh) | 2010-07-21 |
| US8801872B2 (en) | 2014-08-12 |
| JP5588869B2 (ja) | 2014-09-10 |
| WO2009055133A2 (en) | 2009-04-30 |
| EP2181199B1 (en) | 2018-08-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| BRPI0815648B1 (pt) | liga de aço de engrenagem de endurecimento secundário e processo de fabricação desta | |
| KR100422416B1 (ko) | 표면침탄 2차 경화강 | |
| Yuan et al. | A novel strategy for the design of advanced engineering alloys—strengthening turbine disk superalloys via twinning structures | |
| KR20070099658A (ko) | Ｎｉ₃Ｔｉη―상 석출에 의해 강화된 마르텐사이트스테인리스 스틸 | |
| BR112016015645B1 (pt) | Tira de aço inoxidável para válvulas de charneira | |
| Dudko et al. | Tempering behavior of novel low-alloy high-strength steel | |
| Kuhn et al. | Science and Technology of Hi gh Per formance Fer ritic (HiperFer) Stainless Steels | |
| Cui et al. | Recent advances on composition-microstructure-properties relationships of precipitation hardening stainless steel | |
| Jurči et al. | Investigation of the microstructural changes and hardness variations of sub-zero treated Cr-V ledeburitic tool steel due to the tempering treatment | |
| Borgioli | The expanded phases formed in stainless steels by means of low-temperature thermochemical treatments: a corrosion perspective | |
| Sudhakar et al. | Superplastic grade titanium alloy: comparative evaluation of mechanical properties, microstructure, and fracture behavior | |
| CN100497708C (zh) | 一种低合金超高强度钢及其热处理工艺 | |
| Fu et al. | Microstructure evolution and mechanical properties of X6CrNiMoVNb11-2 stainless steel after heat treatment | |
| Saha et al. | Evolution of transient nature nanoscale softening during martensite tempering | |
| Fedoseeva et al. | The effect of prolonged annealing on the structural stability of nanoparticle-hardened low-carbon 9% Cr–3% Co steel | |
| Gao et al. | Microstructure Evolution in an Advanced 9Cr–1.5 Mo–1Co–VNbBN Alloy during Heat Treatment and High Temperature Aging | |
| Lee et al. | Effect of matrix hardness on the creep properties of a 12CrMoVNb steel | |
| Stanford et al. | Martensite/particle interactions and the shape memory effect in an Fe–Mn–Si-based alloy | |
| Shah et al. | Optimization of cryogenic process for enhancing the wear resistance of novel HNMS steel for cryogenic bearings of launch vehicle | |
| Cavaliere | Hydrogen Embrittlement: The Case of Titanium Alloys | |
| Mirzaev et al. | Effect of intercritical quench hardening on mechanical properties of 11% CR steel | |
| Song et al. | State of the art stainless steel provides improved properties for widely varying applications | |
| Suprihanto et al. | Corrosion resistance of AISI 316L after short holding time of high temperature gas nitriding (HTGN) | |
| Blinov et al. | Cyclic Strength of Nonmagnetic Vanadium-Containing Aging Steels | |
| Sarkar et al. | Effect of ferrite grain size on cyclic ratcheting behavior of a low-carbon niobium bearing microalloyed steel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| B08F | Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette] |
Free format text: REFERENTE A 7A ANUIDADE. |
|
| B08G | Application fees: restoration [chapter 8.7 patent gazette] | ||
| B07A | Application suspended after technical examination (opinion) [chapter 7.1 patent gazette] | ||
| B09A | Decision: intention to grant [chapter 9.1 patent gazette] | ||
| B16A | Patent or certificate of addition of invention granted [chapter 16.1 patent gazette] | ||
| B21F | Lapse acc. art. 78, item iv - on non-payment of the annual fees in time |
Free format text: REFERENTE A 15A ANUIDADE. |
|
| B24J | Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12) |
Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2737 DE 20-06-2023 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013. |