DE60202598D1 - Ultra-hochfester ausscheidungshärtbarer rostfreier stahl und daraus hergestellter länglicher band - Google Patents
Ultra-hochfester ausscheidungshärtbarer rostfreier stahl und daraus hergestellter länglicher bandInfo
- Publication number
- DE60202598D1 DE60202598D1 DE60202598T DE60202598T DE60202598D1 DE 60202598 D1 DE60202598 D1 DE 60202598D1 DE 60202598 T DE60202598 T DE 60202598T DE 60202598 T DE60202598 T DE 60202598T DE 60202598 D1 DE60202598 D1 DE 60202598D1
- Authority
- DE
- Germany
- Prior art keywords
- alloy
- stainless steel
- therefor
- ultra
- long
- 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
- 239000010935 stainless steel Substances 0.000 title abstract 2
- 229910001220 stainless steel Inorganic materials 0.000 title abstract 2
- 230000007774 longterm Effects 0.000 title 1
- 239000000956 alloy Substances 0.000 abstract 4
- 229910045601 alloy Inorganic materials 0.000 abstract 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 abstract 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract 1
- 239000011575 calcium Substances 0.000 abstract 1
- 229910052791 calcium Inorganic materials 0.000 abstract 1
- 239000012535 impurity Substances 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 239000011574 phosphorus Substances 0.000 abstract 1
- 229910052698 phosphorus Inorganic materials 0.000 abstract 1
- 238000001556 precipitation Methods 0.000 abstract 1
- 229910052761 rare earth metal Inorganic materials 0.000 abstract 1
- 150000002910 rare earth metals Chemical class 0.000 abstract 1
- 230000000087 stabilizing effect Effects 0.000 abstract 1
- 239000011593 sulfur Substances 0.000 abstract 1
- 229910052717 sulfur Inorganic materials 0.000 abstract 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
- C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
-
- 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
- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
-
- 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
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- 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
- 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
- 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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/005—Modifying the physical properties by deformation combined with, or followed by, heat treatment 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
- C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips of ferrous alloys
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Heat Treatment Of Steel (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Golf Clubs (AREA)
- Chemical Vapour Deposition (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Materials For Medical Uses (AREA)
- Secondary Cells (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US27900701P | 2001-03-27 | 2001-03-27 | |
| US279007P | 2001-03-27 | ||
| PCT/US2002/009231 WO2002079534A1 (en) | 2001-03-27 | 2002-03-26 | Ultra-high-strength precipitation-hardenable stainless steel and elongated strip made therefrom |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE60202598D1 true DE60202598D1 (de) | 2005-02-17 |
| DE60202598T2 DE60202598T2 (de) | 2006-03-23 |
Family
ID=23067285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE60202598T Expired - Lifetime DE60202598T2 (de) | 2001-03-27 | 2002-03-26 | Ultra-hochfester ausscheidungshärtbarer rostfreier stahl und daraus hergestellter länglicher band |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US6630103B2 (de) |
| EP (1) | EP1373590B1 (de) |
| JP (1) | JP4431815B2 (de) |
| KR (1) | KR100910193B1 (de) |
| AT (1) | ATE286991T1 (de) |
| BR (1) | BR0208714A (de) |
| CA (1) | CA2442068C (de) |
| DE (1) | DE60202598T2 (de) |
| ES (1) | ES2236510T3 (de) |
| IL (2) | IL158081A0 (de) |
| MX (1) | MXPA03008788A (de) |
| TW (1) | TWI248467B (de) |
| WO (1) | WO2002079534A1 (de) |
Families Citing this family (44)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE525291C2 (sv) * | 2002-07-03 | 2005-01-25 | Sandvik Ab | Ytmodifierat rostfritt stål |
| JP3955811B2 (ja) * | 2002-11-05 | 2007-08-08 | Ｓｒｉスポーツ株式会社 | ゴルフクラブヘッド |
| WO2004048641A1 (en) * | 2002-11-26 | 2004-06-10 | Crs Holdings, Inc. | Process for improving the hot workability of a cast superalloy ingot |
| US7901519B2 (en) | 2003-12-10 | 2011-03-08 | Ati Properties, Inc. | High strength martensitic stainless steel alloys, methods of forming the same, and articles formed therefrom |
| TW200641153A (en) * | 2003-04-08 | 2006-12-01 | Gainsmart Group Ltd | Ultra-high strength weathering steel and method for making same |
| US7329383B2 (en) | 2003-10-22 | 2008-02-12 | Boston Scientific Scimed, Inc. | Alloy compositions and devices including the compositions |
| DE112004002872T5 (de) * | 2004-05-19 | 2007-06-14 | Sumitomo (Sei) Steel Wire Corp., Itami | Kompositleitung für einen Kabelbaum und Verfahren zur Herstellung derselben |
| US20060032556A1 (en) * | 2004-08-11 | 2006-02-16 | Coastcast Corporation | Case-hardened stainless steel foundry alloy and methods of making the same |
| US7879159B2 (en) * | 2005-01-25 | 2011-02-01 | QuesTek Innovations, LLC | Martensitic stainless steel strengthened by Ni3Ti η-phase precipitation |
| US8710405B2 (en) * | 2005-04-15 | 2014-04-29 | Nippon Steel & Sumikin Stainless Steel Corporation | Austenitic stainless steel welding wire and welding structure |
| EP1891250A1 (de) * | 2005-05-31 | 2008-02-27 | Sandvik Intellectual Property AB | Metallbandprodukt, wie eine elektrische kontaktfeder, und herstellung davon |
| FR2887558B1 (fr) * | 2005-06-28 | 2007-08-17 | Aubert & Duval Soc Par Actions | Composition d'acier inoxydable martensitique, procede de fabrication d'une piece mecanique a partir de cet acier et piece ainsi obtenue |
| BRPI0709615A2 (pt) | 2006-03-13 | 2011-07-19 | Minilap Technologies Inc | conjunto e método cirúrgico minimamente invasivo |
| US7766937B2 (en) | 2006-03-13 | 2010-08-03 | Mini-Lap Technologies, Inc. | Minimally invasive surgical assembly and methods |
| US8133255B2 (en) * | 2006-03-13 | 2012-03-13 | Mini-Lap Technologies, Inc. | Minimally invasive surgical assembly and methods |
| US9486238B2 (en) * | 2006-03-13 | 2016-11-08 | Teleflex Medical Incorporated | Minimally invasive surgical clamps, assemblies and methods |
| US8313507B2 (en) * | 2006-03-13 | 2012-11-20 | Mini-Lap Technologies, Inc. | Minimally invasive rake retractor and method for using same |
| US7780798B2 (en) | 2006-10-13 | 2010-08-24 | Boston Scientific Scimed, Inc. | Medical devices including hardened alloys |
| TW201002831A (en) * | 2008-02-29 | 2010-01-16 | Crs Holdings Inc | Method of making a high strength, high toughness, fatigue resistant, precipitation hardenable stainless steel and product made therefrom |
| US8956351B2 (en) * | 2008-04-09 | 2015-02-17 | Teleflex Medical Incorporated | Minimally invasive surgical needle and cauterizing assembly and methods |
| US7931758B2 (en) | 2008-07-28 | 2011-04-26 | Ati Properties, Inc. | Thermal mechanical treatment of ferrous alloys, and related alloys and articles |
| JP5262423B2 (ja) * | 2008-08-21 | 2013-08-14 | セイコーインスツル株式会社 | ゴルフクラブヘッド、そのフェース部及びその製造方法 |
| ES2421431T3 (es) * | 2008-10-31 | 2013-09-02 | Crs Holdings Inc | Fleje de aleación de acero inoxidable de resistencia ultra-alta, un método de fabricación del mismo y un método de uso del mismo para fabricar la cabeza de un palo de golf |
| FR2947565B1 (fr) * | 2009-07-03 | 2011-12-23 | Snecma | Traitement cryogenique d'un acier martensitique a durcissement mixte |
| US9326757B2 (en) | 2009-12-31 | 2016-05-03 | Teleflex Medical Incorporated | Surgical instruments for laparoscopic aspiration and retraction |
| DE102010025287A1 (de) | 2010-06-28 | 2012-01-26 | Stahlwerk Ergste Westig Gmbh | Chrom-Nickel-Stahl |
| GB201016731D0 (en) | 2010-10-05 | 2010-11-17 | Rolls Royce Plc | An alloy steel |
| US10094007B2 (en) * | 2013-10-24 | 2018-10-09 | Crs Holdings Inc. | Method of manufacturing a ferrous alloy article using powder metallurgy processing |
| US11446553B2 (en) | 2013-11-05 | 2022-09-20 | Karsten Manufacturing Corporation | Club heads with bounded face to body yield strength ratio and related methods |
| US10695620B2 (en) | 2013-11-05 | 2020-06-30 | Karsten Manufacturing Corporation | Club heads with bounded face to body yield strength ratio and related methods |
| FR3013738B1 (fr) * | 2013-11-25 | 2016-10-14 | Aubert & Duval Sa | Acier inoxydable martensitique, piece realisee en cet acier et son procede de fabrication |
| US20160329139A1 (en) * | 2015-05-04 | 2016-11-10 | Carpenter Technology Corporation | Ultra-low cobalt iron-cobalt magnetic alloys |
| GB2546808B (en) * | 2016-02-01 | 2018-09-12 | Rolls Royce Plc | Low cobalt hard facing alloy |
| GB2546809B (en) * | 2016-02-01 | 2018-05-09 | Rolls Royce Plc | Low cobalt hard facing alloy |
| US11692232B2 (en) | 2018-09-05 | 2023-07-04 | Gregory Vartanov | High strength precipitation hardening stainless steel alloy and article made therefrom |
| WO2020227195A1 (en) * | 2019-05-06 | 2020-11-12 | Northwestern University | Ultra-high strength steel and forming methods and applications of same |
| CN110144441B (zh) * | 2019-05-29 | 2021-02-12 | 西安理工大学 | 0Cr13Ni5Mo不锈钢的热处理方法 |
| CA3106648C (en) * | 2020-02-04 | 2022-09-13 | Daido Steel Co., Ltd. | Precipitation hardening martensitic stainless steel |
| MX2022010646A (es) | 2020-02-26 | 2023-02-01 | Crs Holdings Llc | Acero inoxidable endurecible por precipitacion de alta tenacidad a la fractura y alta resistencia. |
| RU2751064C1 (ru) * | 2020-06-17 | 2021-07-07 | Федеральное государственное унитарное предприятие "Всероссийский научно-исследовательский институт авиационных материалов" (ФГУП "ВИАМ") | Высокопрочная порошковая коррозионно-стойкая сталь |
| CN113699464A (zh) * | 2021-08-25 | 2021-11-26 | 哈尔滨工程大学 | 一种超高强高性能薄板马氏体时效不锈钢及其制备方法 |
| CN114921629B (zh) * | 2022-07-20 | 2022-11-15 | 中北大学 | 一种7Cr14马氏体不锈钢及其碳化物的细化工艺 |
| CN115233115B (zh) * | 2022-07-21 | 2023-05-16 | 江苏康瑞新材料科技股份有限公司 | 一种冷镦辐条用不锈钢丝及其制备方法 |
| CN117026097B (zh) * | 2023-10-10 | 2023-12-29 | 内蒙古科技大学 | 一种马氏体时效钢及其制备方法 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US36382A (en) * | 1862-09-02 | Improvement in car-couplings | ||
| GB1056561A (en) * | 1962-10-02 | 1967-01-25 | Armco Steel Corp | Chromium-nickel-aluminium steel and method for heat treatment thereof |
| DE1458359B2 (de) * | 1963-07-11 | 1971-05-06 | Deutsche Edelstahlwerke AG, 4150Krefeld | Verwendung einer stahllegierung als hochfester aushaertbarer rostbestaendiger baustahl |
| SE469986B (sv) | 1991-10-07 | 1993-10-18 | Sandvik Ab | Utskiljningshärdbart martensitiskt rostfritt stål |
| US5411613A (en) * | 1993-10-05 | 1995-05-02 | United States Surgical Corporation | Method of making heat treated stainless steel needles |
| US5855844A (en) * | 1995-09-25 | 1999-01-05 | Crs Holdings, Inc. | High-strength, notch-ductile precipitation-hardening stainless steel alloy and method of making |
-
2002
- 2002-03-26 DE DE60202598T patent/DE60202598T2/de not_active Expired - Lifetime
- 2002-03-26 IL IL15808102A patent/IL158081A0/xx active IP Right Grant
- 2002-03-26 ES ES02728568T patent/ES2236510T3/es not_active Expired - Lifetime
- 2002-03-26 MX MXPA03008788A patent/MXPA03008788A/es active IP Right Grant
- 2002-03-26 BR BR0208714-6A patent/BR0208714A/pt not_active Application Discontinuation
- 2002-03-26 KR KR1020037012621A patent/KR100910193B1/ko active IP Right Grant
- 2002-03-26 WO PCT/US2002/009231 patent/WO2002079534A1/en active IP Right Grant
- 2002-03-26 AT AT02728568T patent/ATE286991T1/de active
- 2002-03-26 EP EP02728568A patent/EP1373590B1/de not_active Expired - Lifetime
- 2002-03-26 US US10/106,661 patent/US6630103B2/en not_active Expired - Lifetime
- 2002-03-26 CA CA2442068A patent/CA2442068C/en not_active Expired - Lifetime
- 2002-03-26 JP JP2002577937A patent/JP4431815B2/ja not_active Expired - Fee Related
- 2002-03-27 TW TW091106003A patent/TWI248467B/zh not_active IP Right Cessation
-
2003
- 2003-09-24 IL IL158081A patent/IL158081A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BR0208714A (pt) | 2004-07-20 |
| US6630103B2 (en) | 2003-10-07 |
| TWI248467B (en) | 2006-02-01 |
| IL158081A (en) | 2006-08-01 |
| KR100910193B1 (ko) | 2009-07-30 |
| WO2002079534A1 (en) | 2002-10-10 |
| ATE286991T1 (de) | 2005-01-15 |
| EP1373590A1 (de) | 2004-01-02 |
| ES2236510T3 (es) | 2005-07-16 |
| JP4431815B2 (ja) | 2010-03-17 |
| IL158081A0 (en) | 2004-03-28 |
| JP2004522859A (ja) | 2004-07-29 |
| MXPA03008788A (es) | 2004-02-12 |
| CA2442068C (en) | 2010-08-10 |
| CA2442068A1 (en) | 2002-10-10 |
| DE60202598T2 (de) | 2006-03-23 |
| EP1373590B1 (de) | 2005-01-12 |
| US20030049153A1 (en) | 2003-03-13 |
| KR20030081534A (ko) | 2003-10-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE60202598D1 (de) | Ultra-hochfester ausscheidungshärtbarer rostfreier stahl und daraus hergestellter länglicher band | |
| DE60002745D1 (de) | Hochfester rostfreier automatenstahl | |
| DE602006016281D1 (de) | Zusammensetzung von martensitischem nichtrostendem stahl, verfahren zur herstellung eines mechanischen teils daraus und resultierendes teil | |
| SI1874973T1 (sl) | Popuščeno martenzitno jeklo postopek izdelave dela iz tovrstnega jekla ter del ki je izdelan nata način | |
| TW200702443A (en) | High Cr cast iron having excellent fatigue crack resistance and the manufacturing method thereof | |
| TW200734469A (en) | High strength and high toughness alloy with low density and the method of making | |
| ATE505567T1 (de) | Hochfeste magnesiumlegierung | |
| EP1108495A3 (de) | Schweisszusatzwerkstoff und Verfahren zum Herstellen einer Schweissverbindung | |
| DE69807340T2 (de) | Legierung und verfahren zur verzinkung von stahl | |
| BR0314470B1 (pt) | aÇo de altÍssima resistÊncia mecÂnica, folha de aÇo e processo de fabricaÇço de uma folha de aÇo. | |
| PL1645647T3 (pl) | Aluminiowy stop odlewniczy, utwardzalny ze starzeniem naturalnym i sposób wytwarzania odlewu aluminiowego | |
| MXPA03011556A (es) | Aleacion magnetica a la corrosion, un articulo elaborado a partir de la misma y un metodo para utilizarla. | |
| SE9602494D0 (sv) | Användning av ett stål | |
| PL350819A1 (en) | An enhanced machinability precipitation-hardenable stainless steel for critical applications | |
| EP0205693B1 (de) | Sonderstähle und Verfahren zu ihrer Herstellung | |
| DE60200586D1 (de) | Isotropischer hochfester stahl, verfahren zur herstellung von blechen und hergestellte bleche | |
| EP1054074A3 (de) | Wismut und Schwefel enthaltenden zerspanbaren Stahl mit ausgezeichneter Dehnbarkeit bei hohen Temperaturen und Herstellungsverfahren dafür | |
| BR0106337A (pt) | Composição de aço, processo de fabricação e peças formadas com essas composições, particularmente válvulas | |
| JP3958193B2 (ja) | オーステナイト系快削ステンレス鋼 | |
| EP1825014A4 (de) | Stahl mit hervorragender wetterbeständigkeit in meeresnähe sowie herstellungsverfahren dafür | |
| JP2004176080A (ja) | 腕時計用外装部品 | |
| MXPA02006831A (es) | Metodo para elaborar desoxidador compuesto de acero liquido y el desoxidador compuesto utilizando el metodo del mismo. | |
| JPH03107442A (ja) | 耐候性に優れた鋳鉄 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8364 | No opposition during term of opposition |