JP5705847B2 - 応力緩和割れに対する高耐性を有する耐熱オーステナイト鋼 - Google Patents
応力緩和割れに対する高耐性を有する耐熱オーステナイト鋼 Download PDFInfo
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- JP5705847B2 JP5705847B2 JP2012521112A JP2012521112A JP5705847B2 JP 5705847 B2 JP5705847 B2 JP 5705847B2 JP 2012521112 A JP2012521112 A JP 2012521112A JP 2012521112 A JP2012521112 A JP 2012521112A JP 5705847 B2 JP5705847 B2 JP 5705847B2
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- steel
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- stress relaxation
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- 229910000831 Steel Inorganic materials 0.000 title claims description 39
- 239000010959 steel Substances 0.000 title claims description 39
- 238000005336 cracking Methods 0.000 title claims description 19
- 239000000203 mixture Substances 0.000 claims description 16
- 238000004519 manufacturing process Methods 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 238000005242 forging Methods 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 34
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 22
- 239000011651 chromium Substances 0.000 description 18
- 229910052759 nickel Inorganic materials 0.000 description 14
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 14
- 229910052720 vanadium Inorganic materials 0.000 description 13
- 229910045601 alloy Inorganic materials 0.000 description 12
- 239000000956 alloy Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 11
- 229910052757 nitrogen Inorganic materials 0.000 description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 10
- 229910052799 carbon Inorganic materials 0.000 description 10
- 229910052750 molybdenum Inorganic materials 0.000 description 10
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 9
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 9
- 229910052804 chromium Inorganic materials 0.000 description 9
- 239000011733 molybdenum Substances 0.000 description 9
- 238000001556 precipitation Methods 0.000 description 9
- 229910052782 aluminium Inorganic materials 0.000 description 8
- 230000035882 stress Effects 0.000 description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 7
- 239000011572 manganese Substances 0.000 description 6
- 230000003647 oxidation Effects 0.000 description 6
- 238000007254 oxidation reaction Methods 0.000 description 6
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 5
- 229910052748 manganese Inorganic materials 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 229910052796 boron Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 229910001566 austenite Inorganic materials 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 101150034785 gamma gene Proteins 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 238000009864 tensile test Methods 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- -1 C 6 carbides Chemical class 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- AUVPWTYQZMLSKY-UHFFFAOYSA-N boron;vanadium Chemical compound [V]#B AUVPWTYQZMLSKY-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 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 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 238000013001 point bending Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
-
- 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
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
-
- 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
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- 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
- C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
-
- 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
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/001—Austenite
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Description
0.1%未満では、これらの効果は達成されない。しかし、シリコンが0.75%を超える場合、鋼の靭性は低減される。シリコンの好ましい範囲は0.2−0.55%である。
Cr(eq)=Cr+Mo+1.5Si+5V+3Al+0.02
Ni(eq)=Ni+30C+x(N−0.045)+0.87、この式において、
0.23%≦N≦0.25%の場合はx=22
0.25%<N≦0.27%の場合はx=20
であり、すべての元素は重量%で示されている。
−厚さ5から100mmの四つ折判の熱間圧延板、
−フランジまたは連結部の製造に使用することができる鍛造品
などの、プロセスによって得ることができる様々な製品ならびにこれらの使用を包含する。
−引張強さ(TS)および全伸び(A)を判定するための、750および850℃における引張試験。30%より大きい伸びが高温で良好な延性を確約するために望ましい。
−シャルピー(Charpy)V型テストは下記条件において行なわれた:650℃において1000時間の熱処理(エージング)後、プレートは、周囲温度に冷却され、この状態でテストした。試験片はプレートに機械加工され、シャルピーV型振り子上20℃でテストした。100ジュールより大きいシャルピー(Charpy)V型破壊エネルギーが満足な靭性を確実にするために望ましい。エージングが通常この種の材料の著しい靭性の低下を招くので、この判定基準は厳しくなっている。
−ISOクリープテストは、36MPaの応力レベル下750℃、および16MPaの応力レベル下850℃における破断時間を判定するために行なわれた。36MPa下750℃において0.5×105hより長いか同等のクリープ破断寿命が望ましい。
−750℃、3000h後のスケール厚さの合計が、いくつかの試験片上で測定された。これは、高温における耐酸化性レベルを示す。
−引張試験、クリープテスト、シャルピーV型テストおよびスケール厚さの結果を表2に示す。
−75hの緩和時間の後には大きく割れ始めるので、モリブデンおよびバナジウムを含まない参照例の鋼である合金Cは非常に応力緩和割れしやすい。さらに、750℃における伸びが十分ではない。
−合金Dはバナジウムを含有せず、過度のアルミニウム含有量を有しており、その結果、高温で不十分な延性となる。
−合金Eは過度の炭素含有量を有しており、バナジウムを含有しない。結果として、炭窒化物、粗いシグマ相およびM23C6炭化物の析出が起こり、650℃において1000h後にシャルピーエネルギー減少をもたらす。さらに、この合金は特に約650℃の温度でSRCしやすかった。
−合金Fは過度のクロム含有量を有しているが、モリブデンおよびバナジウムを含有しない。結果として、金属間相が形成され、シャルピー靭性を低減する一方、この合金は非常にSRCしやすい。
−合金Gは過度の炭素およびニッケル含有量を有しているが、モリブデン、バナジウムおよび窒素の含有量が不十分である。結果として、600−700℃の処理の後、大きい割れ目が現われるので、合金GはSRCによる損傷を示す。合金HがSRCしにくくても、750℃におけるこの寿命は、バナジウムおよび窒素の含有量が低いことにより、目標値0.5×105h未満である。
−炭素、ニッケル、モリブデン、ホウ素、バナジウムおよび窒素の不適当な含有量により、合金Iは600℃においてSRCしやすい。
Claims (4)
- 組成として、重量パーセントで、
0.019%≦C≦0.030%
0.5%≦Mn≦3%
0.1%≦Si≦0.75%
Al≦0.25%
18%≦Cr≦25%
12%≦Ni≦20%
1.5%≦Mo≦3%
0.001%≦B≦0.008%
0.25%≦V≦0.35%
0.23%≦N≦0.27%
を含み、残部が鉄および不可避的不純物であり、但し
Ni(eq)≧1.11Cr(eq)−8.24、この式において、
Cr(eq)=Cr+Mo+1.5Si+5V+3Al+0.02
Ni(eq)=Ni+30C+x(N−0.045)+0.87、この式において、
0.23%≦N≦0.25%の場合はx=22
0.25%<N≦0.27%の場合はx=20
であり、
750℃、36MPa下でのクリープ破断寿命が0.5×10 5 hより長い、
緩和割れしにくいオーステナイト鋼。 - 14%≦Ni≦17%である、請求項1に記載の鋼。
- 伸びが750℃の温度で30%より大きい、請求項1または2のいずれかに記載の組成を備える鋼製品。
- 原子炉容器、鍛造品およびパイプラインの製造のための、請求項1または2のいずれかに記載の組成を有する鋼製品または請求項3に記載の鋼製品の使用。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09290581A EP2287351A1 (en) | 2009-07-22 | 2009-07-22 | Heat-resistant austenitic steel having high resistance to stress relaxation cracking |
EP09290581.9 | 2009-07-22 | ||
PCT/IB2010/001759 WO2011010206A2 (en) | 2009-07-22 | 2010-07-20 | Heat-resistant austenitic steel having high resistance to stress relaxation cracking |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2012533689A JP2012533689A (ja) | 2012-12-27 |
JP5705847B2 true JP5705847B2 (ja) | 2015-04-22 |
Family
ID=41328895
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012521112A Active JP5705847B2 (ja) | 2009-07-22 | 2010-07-20 | 応力緩和割れに対する高耐性を有する耐熱オーステナイト鋼 |
Country Status (15)
Country | Link |
---|---|
US (3) | US20120237389A1 (ja) |
EP (2) | EP2287351A1 (ja) |
JP (1) | JP5705847B2 (ja) |
KR (1) | KR20120047260A (ja) |
CN (1) | CN102482749B (ja) |
AU (1) | AU2010274717B2 (ja) |
BR (1) | BR112012001328B1 (ja) |
CA (1) | CA2768719C (ja) |
ES (1) | ES2663087T3 (ja) |
PL (1) | PL2456901T3 (ja) |
RU (1) | RU2528606C2 (ja) |
SI (1) | SI2456901T1 (ja) |
UA (1) | UA105534C2 (ja) |
WO (1) | WO2011010206A2 (ja) |
ZA (1) | ZA201200423B (ja) |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2750283A (en) * | 1953-05-27 | 1956-06-12 | Armco Steel Corp | Stainless steels containing boron |
US3649376A (en) * | 1966-01-13 | 1972-03-14 | Ugine Kuhlmann | Process for preparing and treating austenitic stainless steels |
SE364996B (ja) * | 1971-07-21 | 1974-03-11 | Uddeholms Ab | |
JPS60116750A (ja) * | 1983-11-28 | 1985-06-24 | Nippon Steel Corp | V,νを含むオ−ステナイト系耐熱合金 |
JPH0694583B2 (ja) * | 1984-10-03 | 1994-11-24 | 株式会社東芝 | 耐熱オーステナイト鋳鋼 |
JPS61201760A (ja) * | 1985-03-05 | 1986-09-06 | Sumitomo Metal Ind Ltd | 黒液回収処理用ボイラ−の構造部材 |
SU1342940A1 (ru) * | 1986-05-13 | 1987-10-07 | Предприятие П/Я А-3513 | Нержавеюща сталь |
JPH0550288A (ja) * | 1991-08-22 | 1993-03-02 | Nippon Steel Corp | クリープ破断強度及び耐脆化性の優れたオーステナイト系ステンレス鋼溶接材料 |
JP3409965B2 (ja) * | 1996-05-22 | 2003-05-26 | 川崎製鉄株式会社 | 深絞り性に優れるオーステナイト系ステンレス熱延鋼板およびその製造方法 |
AT410550B (de) * | 2002-01-23 | 2003-05-26 | Boehler Edelstahl | Reaktionsträger werkstoff mit erhöhter härte für thermisch beanspruchte bauteile |
JP4424471B2 (ja) * | 2003-01-29 | 2010-03-03 | 住友金属工業株式会社 | オーステナイト系ステンレス鋼およびその製造方法 |
CN1328405C (zh) * | 2003-03-20 | 2007-07-25 | 住友金属工业株式会社 | 高压氢气用不锈钢、由该钢制作的容器以及器具 |
KR100689783B1 (ko) * | 2003-06-10 | 2007-03-08 | 수미도모 메탈 인더스트리즈, 리미티드 | 수소 가스용 오스테나이트 스테인레스강 및 그 제조 방법 |
DE602005021286D1 (de) * | 2004-09-15 | 2010-07-01 | Sumitomo Metal Ind | Stahl-Rohr mit ausgezeichneter Beständigkeit gegen Abblättern auf der inneren Oberfläche |
US20060243356A1 (en) * | 2005-02-02 | 2006-11-02 | Yuusuke Oikawa | Austenite-type stainless steel hot-rolling steel material with excellent corrosion resistance, proof-stress, and low-temperature toughness and production method thereof |
EP2199420B1 (en) * | 2007-10-04 | 2013-05-22 | Nippon Steel & Sumitomo Metal Corporation | Austenitic stainless steel |
-
2009
- 2009-07-22 EP EP09290581A patent/EP2287351A1/en not_active Withdrawn
-
2010
- 2010-07-20 RU RU2012106247/02A patent/RU2528606C2/ru active
- 2010-07-20 BR BR112012001328-9A patent/BR112012001328B1/pt active IP Right Grant
- 2010-07-20 ES ES10795762.3T patent/ES2663087T3/es active Active
- 2010-07-20 US US13/386,141 patent/US20120237389A1/en not_active Abandoned
- 2010-07-20 AU AU2010274717A patent/AU2010274717B2/en active Active
- 2010-07-20 UA UAA201201893A patent/UA105534C2/uk unknown
- 2010-07-20 KR KR1020127004115A patent/KR20120047260A/ko not_active Application Discontinuation
- 2010-07-20 PL PL10795762T patent/PL2456901T3/pl unknown
- 2010-07-20 JP JP2012521112A patent/JP5705847B2/ja active Active
- 2010-07-20 EP EP10795762.3A patent/EP2456901B1/en active Active
- 2010-07-20 CN CN201080038172.8A patent/CN102482749B/zh active Active
- 2010-07-20 WO PCT/IB2010/001759 patent/WO2011010206A2/en active Application Filing
- 2010-07-20 CA CA2768719A patent/CA2768719C/en active Active
- 2010-07-20 SI SI201031655T patent/SI2456901T1/sl unknown
-
2012
- 2012-01-19 ZA ZA2012/00423A patent/ZA201200423B/en unknown
-
2018
- 2018-05-29 US US15/991,428 patent/US20180274067A1/en not_active Abandoned
-
2022
- 2022-03-21 US US17/699,324 patent/US11884997B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
EP2456901B1 (en) | 2017-12-20 |
EP2287351A1 (en) | 2011-02-23 |
RU2528606C2 (ru) | 2014-09-20 |
US11884997B2 (en) | 2024-01-30 |
JP2012533689A (ja) | 2012-12-27 |
ES2663087T3 (es) | 2018-04-11 |
WO2011010206A3 (en) | 2011-05-19 |
SI2456901T1 (sl) | 2018-10-30 |
ZA201200423B (en) | 2012-09-26 |
BR112012001328B1 (pt) | 2018-04-24 |
US20230040035A1 (en) | 2023-02-09 |
CN102482749B (zh) | 2016-04-20 |
US20180274067A1 (en) | 2018-09-27 |
KR20120047260A (ko) | 2012-05-11 |
CA2768719A1 (en) | 2011-01-27 |
BR112012001328A2 (pt) | 2017-02-07 |
WO2011010206A2 (en) | 2011-01-27 |
PL2456901T3 (pl) | 2018-12-31 |
RU2012106247A (ru) | 2013-08-27 |
CA2768719C (en) | 2015-06-02 |
EP2456901A2 (en) | 2012-05-30 |
AU2010274717B2 (en) | 2015-04-02 |
CN102482749A (zh) | 2012-05-30 |
US20120237389A1 (en) | 2012-09-20 |
UA105534C2 (uk) | 2014-05-26 |
AU2010274717A1 (en) | 2012-03-01 |
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