WIPO logo
Mobile | Deutsch | Español | Français | 日本語 | 한국어 | Português | Русский | 中文 | العربية |
PATENTSCOPE

Search International and National Patent Collections
World Intellectual Property Organization
Search
 
Browse
 
Translate
 
Options
 
News
 
Login
 
Help
 
Machine translation
1. (WO2011135170) METHOD FOR MANUFACTURING AND UTILIZING FERRITIC-AUSTENITIC STAINLESS STEEL WITH HIGH FORMABILITY
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2011/135170    International Application No.:    PCT/FI2011/050345
Publication Date: 03.11.2011 International Filing Date: 18.04.2011
IPC:
C22C 38/00 (2006.01)
Applicants: OUTOKUMPU OYJ [FI/FI]; Riihitontuntie 7 FI-02200 Espoo (FI) (For All Designated States Except US).
OLIVER, James [GB/SE]; (SE) (For US Only).
JONSSON, Jan Y. [SE/SE]; (SE) (For US Only).
TALONEN, Juho [FI/FI]; (FI) (For US Only)
Inventors: OLIVER, James; (SE).
JONSSON, Jan Y.; (SE).
TALONEN, Juho; (FI)
Agent: OUTOKUMPU OYJ, LEGAL AFFAIRS AND IPR; P.O. Box 140 FI-02201 Espoo (FI)
Priority Data:
20100178 29.04.2010 FI
Title (EN) METHOD FOR MANUFACTURING AND UTILIZING FERRITIC-AUSTENITIC STAINLESS STEEL WITH HIGH FORMABILITY
(FR) PROCÉDÉ DE FABRICATION ET D'UTILISATION D'ACIER INOXYDABLE FERRITIQUE AUSTÉNITIQUE PRÉSENTANT UNE GRANDE APTITUDE AU FORMAGE
Abstract: front page image
(EN)The invention relates to a method for manufacturing a ferritic-austenitic stainless steel having good formability and high elongation. The stainless steel is heat treated so that the microstructure of the stainless steel contains 45 - 75 % austenite in the heat treated condition, the remaining microstructure being ferrite, and the measured Md30 temperature of the stainless steel is adjusted between 0 and 50 °C in order to utilize the transformation induced plasticity (TRIP) for improving the formability of the stainless steel.
(FR)Cette invention concerne un procédé de fabrication et d'utilisation d'acier inoxydable ferritique austénitique présentant une grande aptitude au formage et un allongement élevé. L'acier inoxydable subit un traitement thermique de telle façon que la microstructure de l'acier inoxydable contient de 45 à 75% d'austénite dans l'état suivant le traitement thermique, le reste de la microstructure étant de la ferrite. La température Md30 mesurée de l'acier inoxydable est ajustée entre 0 et 50°C afin d'utiliser la plasticité induite par transformation (TRIP) pour améliorer l'aptitude au formage de l'acier inoxydable.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LR, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)