公开(公告)号：KR20200144599A

公开(公告)日：2020-12-29

申请号：KR20207036828

申请日：2012-09-05

Applicant: OUTOKUMPU OY

Inventor： OLIVER JAMES ,  JONSSON JAN Y ,  THULIN ALEXANDER

IPC: C22C38/58 ,  C22C38/02 ,  C22C38/42 ,  C22C38/44

Abstract: 본발명은, TRIP 효과를이용한고성형성및, 균형잡힌공식저항당량지수에의한고내식성을갖는듀플렉스페라이트오스테나이트계스테인레스강에관한것이다. 듀플렉스스테인레스강은 0.04 중량% 미만의탄소, 0.7 중량% 미만의규소, 2.5 중량% 미만의망간, 18.5 ~ 22.5 중량% 의크롬, 0.8 ~ 4.5 중량% 의니켈, 0.6 ~ 1.4 중량% 의몰리브덴, 1 중량% 미만의구리, 0.10 ~ 0.24 중량% 의질소를함유하고, 나머지는철 및, 스테인레스강들에서발생되는불가피한불순물들이다.

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：EP3080311A4

公开(公告)日：2017-07-26

申请号：EP14870087

申请日：2014-12-10

Applicant: OUTOKUMPU OY

Inventor： OLIVER JAMES ,  ANDERSSON JAN-OLOF ,  SCHEDIN ERIK

IPC: C21D6/00 ,  C21D1/26 ,  C21D6/02 ,  C21D7/02 ,  C21D7/10 ,  C21D8/00 ,  C21D8/02 ,  C21D8/04 ,  C21D9/48 ,  C22C38/06 ,  C22C38/40

CPC classification number: C21D9/48 ,  C21D1/26 ,  C21D6/02 ,  C21D7/02 ,  C21D7/10 ,  C21D8/02 ,  C21D8/0405 ,  C21D8/0436 ,  C21D8/0442 ,  C21D2211/001 ,  C21D2211/005 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/06 ,  C22C38/40 ,  C22C38/42 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50 ,  C22C38/52 ,  C22C38/54 ,  C22C38/58

Abstract: The invention relates to a method for producing a high-strength ferritic austenitic duplex stainless steel with the TRIP (Transformation induced plasticity) effect with deformation. After the heat treatment on the temperature range of 950 1150° C. in order to have high tensile strength level of at least 1000 MPa with retained formability the ferritic austenitic duplex stainless steel is deformed with a reduction degree of at least 10%, preferably at least 20% so that with a reduction degree of 20% the elongation (A50) is at least 15%.

Abstract translation: 本发明涉及用于生产具有变形的TRIP（相变诱发塑性）效应的高强度铁素体奥氏体双相不锈钢的方法。 在950-1150℃的温度范围内进行热处理以具有至少1000MPa的高拉伸强度水平并保持可成形性之后，铁素体奥氏体双相不锈钢以至少10％的还原度变形，优选在 至少20％，使得在还原度为20％时伸长率（A50）至少为15％。

公开(公告)号：EP3158101A4

公开(公告)日：2017-12-13

申请号：EP15809637

申请日：2015-06-11

Applicant: OUTOKUMPU OY

Inventor： OLIVER JAMES ,  JONSSON JAN Y

IPC: C22C38/42 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/44 ,  C22C38/58

CPC classification number: C22C38/44 ,  C21D2211/001 ,  C21D2211/005 ,  C22C38/00 ,  C22C38/001 ,  C22C38/02 ,  C22C38/04 ,  C22C38/42 ,  C22C38/58

Abstract: The invention relates to a duplex ferritic austenitic stainless steel having high formability utilizing the TRIP effect and high corrosion resistance with the high pitting resistance equivalent. The duplex stainless steel contains less than 0,04 weight % carbon, 0,2-0,8 weight % silicon, 0,3-2,0 weight % manganese, 4,0-19,0 weight % chromium, 2,0-5,0 weight % nickel, 4,0-7,0 weight % molybdenum, less than 4,5 weight % tungsten, 0,1-1,5 weight % copper, 0,14-0,23 weight % nitrogen, the rest being iron and inevitable impurities occurring in stainless steels. Further, the co-effect of the chromium, molybdenum and tungsten contents in weight % is in the range of 20

公开(公告)号：EP3102714A4

公开(公告)日：2017-09-20

申请号：EP15743800

申请日：2015-02-02

Applicant: OUTOKUMPU OY

Inventor： OLIVER JAMES ,  JONSSON JAN Y

IPC: C22C38/42 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/40 ,  C22C38/44 ,  C22C38/58

CPC classification number: C22C38/58 ,  C21D2211/001 ,  C21D2211/005 ,  C22C38/001 ,  C22C38/02 ,  C22C38/04 ,  C22C38/40 ,  C22C38/42 ,  C22C38/44

Abstract: The invention relates to a duplex ferritic austenitic stainless steel having high formability utilizing the TRIP effect and high corrosion resistance with the balanced pitting resistance equivalent. The duplex stainless steel contains less than 0.04 weight % carbon, 0.2-0.8 weight % silicon, less than 2.0 weight % manganese, 16.5-19.5 weight % chromium, 3.0-4.7 weight % nickel, 1.5-4.0 weight % molybdenum, less than 3.5 weight % tungsten, less than 1 weight % copper, 0.13-0.26 weight % nitrogen, the rest being iron and inevitable impurities occurring in stainless steels.

Abstract translation: 本发明涉及一种双相铁素体奥氏体不锈钢，其利用TRIP效应和高耐腐蚀性以及平衡的耐点蚀性等同而具有高成形性。 双相不锈钢含有小于0.04重量％的碳，0.2-0.8重量％的硅，小于2.0重量％的锰，16.5-19.5重量％的铬，3.0-4.7重量％的镍，1.5-4.0重量％的钼，小于3.5 重量％的钨，少于1重量％的铜，0.13-0.26重量％的氮，其余为铁和不锈钢中出现的不可避免的杂质。

公开(公告)号：EP3008222A4

公开(公告)日：2017-02-15

申请号：EP14810949

申请日：2014-06-12

Applicant: OUTOKUMPU OY

Inventor： OLIVER JAMES ,  SCHEDIN ERIK ,  PETTERSSON RACHEL

IPC: C22C38/42 ,  C22C38/38 ,  C22C38/44 ,  C22C38/54 ,  C22C38/58

CPC classification number: C22C38/58 ,  C21D6/002 ,  C21D9/0081 ,  C21D2211/001 ,  C21D2211/005 ,  C22C38/001 ,  C22C38/005 ,  C22C38/02 ,  C22C38/40 ,  C22C38/42 ,  C22C38/44 ,  C22C38/54

Abstract: The invention relates to a duplex ferritic austenitic stainless steel having 40-60 volume % ferrite and 40-60 volume austenite, preferably 45-55 volume % ferrite and 45-55 volume % austenite at the annealed condition, and having improved cold workability and impact toughness. The stainless steel contains in weight % less than 0.07% carbon (C), 0.1-2.0% silicon (Si), 3-5% manganese (Mn), 19-23% chromium (Cr), 1.1-1.9% nickel (Ni), 1.1-3.5% copper (Cu), 0.18-0.30% nitrogen (N), optionally molybdenum (Mo) and/or tungsten (W) in a total amount calculated with the formula (Mo+½W) 10, where Creq=Cr+1.5Si+Mo+2Ti−0.5Nb Nieq=Ni+0.5Mn+30(C−N)+0.5(Cu+Co)

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：EP2753724A4

公开(公告)日：2015-09-23

申请号：EP12830561

申请日：2012-09-05

Applicant: OUTOKUMPU OY

Inventor： OLIVER JAMES ,  JONSSON JAN Y ,  THULIN ALEXANDER

IPC: C22C38/02 ,  C22C38/42 ,  C22C38/44 ,  C22C38/58

CPC classification number: C22C38/58 ,  C21D6/004 ,  C22C38/001 ,  C22C38/02 ,  C22C38/04 ,  C22C38/42 ,  C22C38/44

公开(公告)号：BR112014005275B1

公开(公告)日：2022-09-20

申请号：BR112014005275

申请日：2012-09-05

Applicant: OUTOKUMPU OY

Inventor： OLIVER JAMES ,  JONSSON JAN Y ,  THULIN ALEXANDER

IPC: C22C38/02 ,  C22C38/42 ,  C22C38/44 ,  C22C38/58

Abstract: AÇO INOXIDÁVEL DUPLEX A presente invenção está correlacionada a um aço inoxidável duplex ferrítico-austenítico, o qual apresenta uma alta formabilidade utilizando o efeito TRIP, e uma alta resistência à corrosão e equivalente resistência à corrosão por ponto otimizada. O aço inoxidável duplex contém menos de 0,04% em peso de carbono, menos de 0,7% em peso de silício, menos de 2,5% em peso de manganês, de 18,5-22,5% em peso de cromo, de 0, 8-4, 5% em peso de níquel, de 0, 6-1, 4% em peso de molibdênio, menos de 1% em peso de cobre, de 0,10-0,24% em peso de nitrogênio, o restante sendo ferro e inevitáveis impurezas que ocorrem nos aços invenção inoxidáveis.

公开(公告)号：EA033710B1

公开(公告)日：2019-11-19

申请号：EA201691349

申请日：2015-02-02

Applicant: OUTOKUMPU OY

Inventor： OLIVER JAMES ,  JONSSON JAN Y

IPC: C22C38/42 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/44

Abstract: Изобретениеотноситсяк дуплекснойферритно-аустенитнойнержавеющейстали, обладающейвысокойспособностьюк формоизменениюс использованиемэффектапластичности, наведеннойпревращением, ивысокойстойкостьюк коррозиисосбалансированнымэквивалентомстойкостик точечнойкоррозии. Дуплекснаянержавеющаястальсодержитменее 0,04 мас.% углерода, от 0,2 до 0,8 мас.% кремния, менее 2,0 мас.% марганца, от 16,5 до 19,5 мас.% хрома, от 3,0 до 4,7 мас.% никеля, от 1,5 до 4,0 мас.% молибдена, менее 3,5 мас.% вольфрама, менее 1 мас.% меди, от 0,13 до 0,26 мас.% азота, остальноесоставляетжелезои неизбежныепримеси, присутствующиев нержавеющихсталях.