公开(公告)号：EP2699704A4

公开(公告)日：2015-03-11

申请号：EP12774657

申请日：2012-04-18

Applicant: OUTOKUMPU OY

Inventor： OLIVER JAMES ,  JONSSON JAN Y ,  TALONEN JUHO ,  PETTERSSON RACHEL ,  ANDERSSON JAN-OLOF

IPC: C22C38/00 ,  C21D6/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/08 ,  C22C38/16 ,  C22C38/44

CPC classification number: C21D6/004 ,  C21D1/26 ,  C21D1/42 ,  C21D6/002 ,  C21D6/005 ,  C21D2211/001 ,  C21D2211/005 ,  C22C38/001 ,  C22C38/02 ,  C22C38/42 ,  C22C38/44 ,  C22C38/58 ,  Y02P10/253

Abstract: The invention relates to a method for manufacturing a ferritic-austenitic stainless steel having good formability, good weldability and high elongation. The stainless steel containing the sum of carbon and nitrogen C+N in the range 0.17-0.295 in weight % in which sum C+N a lower carbon content to avoid sensitisation during welding is compensated by an increased nitrogen content to maintain formability 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.

公开(公告)号：EP2566994A4

公开(公告)日：2017-04-05

申请号：EP11777324

申请日：2011-04-18

Applicant: OUTOKUMPU OY

Inventor： TALONEN JUHO ,  TAULAVUORI TERO ,  KODUKULA SURESH

IPC: C22C38/00 ,  C21C5/00 ,  C21D6/00 ,  C22C38/02 ,  C22C38/42 ,  C22C38/58

CPC classification number: C22C38/58 ,  C21D6/002 ,  C21D6/005 ,  C22C38/001 ,  C22C38/02 ,  C22C38/42

公开(公告)号：EP3191612A4

公开(公告)日：2018-01-24

申请号：EP15834538

申请日：2015-08-21

Applicant: OUTOKUMPU OY

Inventor： TALONEN JUHO

IPC: C22C38/48 ,  C21D1/26 ,  C21D8/02 ,  C22C38/42 ,  C22C38/44 ,  C22C38/46 ,  C22C38/50 ,  C22C38/58

CPC classification number: C21D9/46 ,  C21D1/26 ,  C21D8/0236 ,  C21D8/0273 ,  C21D2211/001 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/42 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50 ,  C22C38/58

Abstract: An austenitic stainless steel including in weight % 0-0.4% C, 0-3% Si, 3-20% Mn, 10-30% Cr, 0-4.5% Ni, 0-3% Mo, 0-3% Cu, 0.05-0.5% N, 0-0.5% Nb, 0-0.5% Ti, 0-0.5% V, the balance of Fe and inevitable impurities. The content of at least one of the elements in the group of niobium (Nb), titanium (Ti) or vanadium (V) is more than 0.05% so that the total amount of niobium (Nb), titanium (Ti) and vanadium (V) contents is in the range of 0.05-0.5%. The grain size of the steel is less than 10 micrometer after annealing the cold deformed product and the difference between the yield strengths of the steel measured in transverse and parallel directions to the rolling direction is lower than 5%. Also, a method for producing the austenitic stainless steel.

公开(公告)号：EP3017072A4

公开(公告)日：2017-08-02

申请号：EP14820539

申请日：2014-06-19

Applicant: OUTOKUMPU OY

Inventor： TALONEN JUHO

IPC: C21D3/06 ,  C21D3/00 ,  C21D7/02 ,  C21D8/00 ,  C21D8/02 ,  C22C38/40

CPC classification number: C21D3/06 ,  C21D1/74 ,  C21D6/001 ,  C21D6/002 ,  C21D6/005 ,  C21D8/0436 ,  C22C38/001 ,  C22C38/02 ,  C22C38/40 ,  C22C38/42 ,  C22C38/58

Abstract: The invention relates to a stainless steel exhibiting transformation-induced plasticity (TRIP) effect resistant to delayed cracking and to the method for producing the stainless steel. The resistance to delayed cracking in the stainless steel is achieved limiting the total hydrogen content of the stainless steel measured by inert gas fusion method below 4 weight ppm, preferably below 3 weight ppm by a heat treatment performed at the temperature range between 100° C. and 700° C. for 0.1-300 hours, preferably at 200-600° C. for 1-100 hours, and more preferably at 250-500° C. for 1-100 hours.

Abstract translation: 本发明涉及具有抗延迟裂纹的转变诱发塑性（TRIP）效应的不锈钢及其制造方法。 通过在100℃的温度范围内进行的热处理，实现了不锈钢中延迟裂纹的抗性，通过惰性气体熔融法测量的不锈钢的总氢含量低于4重量ppm，优选低于3重量ppm 和700℃下0.1-300小时，优选200-600℃下1-100小时，更优选250-500℃下1-100小时。

公开(公告)号：EP2563945A4

公开(公告)日：2016-12-07

申请号：EP11774473

申请日：2011-04-18

Applicant: OUTOKUMPU OY

Inventor： OLIVER JAMES ,  JONSSON JAN Y ,  TALONEN JUHO

IPC: C22C38/00 ,  C22C38/02 ,  C22C38/42 ,  C22C38/58

CPC classification number: C22C38/02 ,  C21D6/002 ,  C21D6/005 ,  C21D2201/02 ,  C21D2211/001 ,  C21D2211/005 ,  C22C38/001 ,  C22C38/42 ,  C22C38/58

Abstract: 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.

Abstract translation: 本发明涉及一种用于制造具有良好的成形性和高伸长率的铁素体 - 奥氏体系不锈钢的方法。 不锈钢进行热处理，所以没有不锈钢的组织中含有在热处理条件下45-75％的奥氏体，剩余的显微组织为铁素体，和不锈钢的测量的MD 30温度调整在0〜50℃下 为了利用用于提高不锈钢的可成形性的相变诱发塑性（TRIP）。

公开(公告)号：BR112012027704B1

公开(公告)日：2020-12-01

申请号：BR112012027704

申请日：2011-04-18

Applicant: OUTOKUMPU OY

Inventor： JONSSON JAN Y ,  OLIVER JAMES ,  TALONEN JUHO

IPC: C22C38/00

Abstract: método para fabricação e utilização de aço inoxidável ferrítico-austenítico com alta formabilidade a presente invenção está correlacionada a um método de fabricação de um aço inoxidável ferrítico-austenítico, tendo satisfatória formabilidade e alto alongamento. o aço inoxidável é tratado termicamente, de modo que a sua microestrutura contenha 45-75% de austenita na condição tratada termicamente, a microestrutura restante sendo ferrita, e a temperatura medida md30 do aço inoxidável é ajustada entre 0 e 50ºc, a fim de utilizar a plasticidade induzida por transformação (trip) para melhorar a formabilidade do aço inoxidável.

公开(公告)号：CA2832921C

公开(公告)日：2020-03-31

申请号：CA2832921

申请日：2012-04-18

Applicant: OUTOKUMPU OY

Inventor： OLIVER JAMES ,  JONSSON JAN Y ,  TALONEN JUHO ,  PETTERSSON RACHEL ,  ANDERSSON JAN-OLOF

IPC: C21D6/00 ,  C22C38/02 ,  C22C38/58

Abstract: The invention relates to a method for manufacturing a ferritic-austenitic stainless steel having good formability, good weldability and high elongation. The stainless steel containing the sum of carbon and nitrogen C+N in the range 0,17 - 0,295 in weight % in which sum C+N a lower carbon content to avoid sensitisation during welding is compensated by an increased nitrogen content to maintain formability 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.

公开(公告)号：MX339084B

公开(公告)日：2016-05-10

申请号：MX2012012874

申请日：2011-04-18

Applicant: OUTOKUMPU OY

Inventor： TALONEN JUHO ,  KODUKULA SURESH ,  TAULAVUORI TERO

IPC: C22C38/58 ,  C21C5/00 ,  C22C38/40 ,  C22C38/42 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50 ,  C22C38/54

Abstract: La invención se refiere a un acero inoxidable austenítico, al bajo níquel, con elevada resistencia al agrietamiento retardado, y al uso de este acero. El acero contiene en % peso 0.02 - 0.15% de carbono; 7 -15% de manganeso; 14 - 19% de cromo; 0.1 - 4% de níquel; 0.1- 3% de cobre; 0.05 - 0.3% de nitrógeno, el resto del acero siendo fierro e impurezas inevitables, y el intervalo de la composición química en términos de la suma de los contenidos de carbono y nitrógeno (C+N) y la temperatura Md30 medida está dentro del área definida por los puntos ABCD que tienen los siguientes valores: Punto Md30 °C C+N % A -80 0.1 B +7 0.1 C -40 0.40 D -80 0.40.

公开(公告)号：FI20110375A

公开(公告)日：2012-10-19

申请号：FI20110375

申请日：2011-10-28

Applicant: OUTOKUMPU OY

Inventor： OLIVER JAMES ,  JONSSON JAN Y ,  TALONEN JUHO ,  PETTERSSON RACHEL ,  ANDERSSON JAN-OLOF

Abstract: The invention relates to a method for manufacturing a ferritic-austenitic stainless steel having good formability, good weldability and high elongation. The stainless steel containing the sum of carbon and nitrogen C+N in the range 0.17-0.295 in weight % in which sum C+N a lower carbon content to avoid sensitisation during welding is compensated by an increased nitrogen content to maintain formability 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.

公开(公告)号：CA2797328A1

公开(公告)日：2011-11-10

申请号：CA2797328

申请日：2011-04-18

Applicant: OUTOKUMPU OY

Inventor： TALONEN JUHO ,  TAULAVUORI TERO ,  KODUKULA SURESH

IPC: C22C38/58 ,  C21C5/00 ,  C22C38/40 ,  C22C38/42 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50 ,  C22C38/54

Abstract: The invention relates to a low-nickel austenitic stainless steel with high resistance to delayed cracking and the use of the steel. The steel contains in weight % 0,02 - 0,15 % carbon, 7 - 15 % manganese, 14 - 19 % chromium, 0,1 - 4 % nickel, 0,1 - 3 % copper, 0,05 - 0,3 % nitrogen, the balance of the steel being iron and inevitable impurities, and the chemical composition range in terms of the sum of carbon and nitrogen contents (C+N) and the measured Md3o-temperature is inside the area defined by the points ABCD which have the following values Point Md30 °C C+N % A - 80 0,1 B + 7 0,1 C - 40 0,40 D - 80 0,40.