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1. 发明申请

WO2016016683A1 A METHOD FOR PRODUCING A HIGH STRENGTH STEEL PIECE 审中-公开
标题翻译：一种生产高强度钢板的方法
公开(公告)号：WO2016016683A1
公开(公告)日：2016-02-04
申请号：PCT/IB2014/002342
申请日：2014-07-30
申请人： ARCELORMITTAL
发明人： ARLAZAROV, Artem
IPC分类号： C21D9/02 , C23C2/00 , C22C38/00
CPC分类号： C21D9/46 , C21D1/18 , C21D1/22 , C21D1/26 , C21D6/004 , C21D6/005 , C21D6/008 , C21D9/573 , C21D11/00 , C21D2211/001 , C21D2211/008 , C22C38/00 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/34 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/54 , C22C38/58 , C23C2/02 , C23C2/06 , C23C2/40
摘要： A method for producing a high strength steel piece by heat treating the piece on an equipment in order to obtain desired mechanical properties is provided. The heat treatment includes a final treatment including at least an overaging for which it is possible to calculate two final treatment parameters OAP1 and OAP2 depending at least on the at least one operating point. The method includes the steps of determining a minimum first final treatment parameter OAP1 min and a maximum second final treatment parameter OAP2 max respectively, in order to obtain the desired mechanical properties and determining at least the operating points of the overaging section such that the first final treatment parameter OAP1 and the second final treatment parameter OAP2 resulting from operating points are such that: OAP1≥OAP1 min and OAP2 ≤ OAP2 max. The method further includes heat treating the piece on the equipment running according to the determined operating points.
摘要翻译：提供了一种通过在设备上热处理以获得期望的机械性能来制造高强度钢片的方法。所述热处理包括最终处理，其包括至少一种过时效应，对于该处理，可以至少在至少一个操作点上计算两个最终处理参数OAP1和OAP2。该方法包括以下步骤：分别确定最小第一最终处理参数OAP1min和最大第二最终处理参数OAP2max，以便获得期望的机械性能并至少确定过时效部分的操作点，使得第一最终处理参数治疗参数OAP1和由操作点产生的第二次最终治疗参数OAP2使得：OAP1≥OAP1min和OAP2≤OAP2max。该方法还包括根据确定的工作点对运行的设备上的件进行热处理。

2. 发明申请

WO2016079675A1 METHOD FOR MANUFACTURING A HIGH STRENGTH STEEL PRODUCT AND STEEL PRODUCT THEREBY OBTAINED 审中-公开
标题翻译：制造高强度钢产品和获得的钢产品的方法
公开(公告)号：WO2016079675A1
公开(公告)日：2016-05-26
申请号：PCT/IB2015/058887
申请日：2015-11-17
申请人： ARCELORMITTAL
发明人： ARLAZAROV, Artem , ZHU, Kangying
IPC分类号： C21D7/13 , C21D8/02 , C23C2/04 , C23C2/06 , C21D9/46 , C21D1/18 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/38
CPC分类号： C21D8/0205 , C21D1/18 , C21D7/13 , C21D8/02 , C21D8/0226 , C21D8/0263 , C21D9/46 , C21D2211/001 , C21D2211/008 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/38 , C23C2/06 , C23C2/12 , C23C2/28
摘要： A method for manufacturing a steel product, comprising the steps of: providing a heated steel starting product at a temperature comprised between 380°C and 700°C, having a metastable fully austenitic structure, with a composition comprising, in percent by weight: 0.15% ≤ C ≤ 0.40%,1.5% ≤ Mn ≤ 4.0%, 0.5% ≤ Si ≤ 2.5%, 0.005% ≤ Al ≤ 1.5%, with 0.8% ≤ Si+Al ≤ 2.5%, S ≤ 0.05%, P ≤ 0.1%, at least one element chosen among Cr and Mo, such that: 0% ≤ Cr ≤ 4.0%, 0% ≤ Mo ≤ 0.5%, and 2.7% ≤ Mn + Cr + 3 Mo ≤ 5.7%, and optionally one or several elements chosen among: Nb ≤ 0.1%, Ti ≤ 0.1%, Ni ≤ 3.0%, 0.0005% ≤ B ≤ 0.005%, 0.0005% ≤ Ca ≤ 0.005%, the balance of the composition consisting of iron and unavoidable impurities resulting from the smelting; subjecting said starting product to a hot forming step at a temperature comprised between 700°C and 380°C, with a cumulated strain ε b between 0.1 and 0.7, in at least one location of said heated steel starting product, to obtain a fully austenitic hot-formed steel product; then quenching the hot-formed steel product by cooling it down, at a cooling rate VR 2 superior to the critical martensitic cooling rate, to a quenching temperature QT lower than Ms in order to obtain a structure containing between 40% and 90% of martensite, the rest of the structure being austenite; then maintaining at, or reheating the product up to a holding temperature PT between QT and 470°C and holding it at said temperature PT for a duration Pt between 5s and 600s.
摘要翻译：一种制造钢产品的方法，包括以下步骤：在380℃至700℃之间的温度下提供具有亚稳态完全奥氏体结构的加热钢起始产物，其组成包含：以重量百分比计：0.15 ％≤C≤0.40％，1.5％≤Mn≤4.0％，0.5％≤Si≤2.5％，0.005％≤Al≤1.5％，0.8％≤Si+Al≤2.5％，S≤0.05％，P≤0.1 ％，选自Cr和Mo中的至少一种元素，使得：0％≤Cr≤4.0％，0％≤Mo≤0.5％和2.7％≤Mn+ Cr +3Mo≤5.7％，以及任选的一种或几种元素选自：Nb≤0.1％，Ti≤0.1％，Ni≤3.0％，0.0005％≤B≤0.005％，0.0005％≤Ca≤0.005％，组成由铁和不可避免的杂质组成的余量 ; 在所述加热的钢起始产物的至少一个位置，使所述起始产物在700℃至380℃之间的温度下，累积应变εb为0.1至0.7的热成型步骤，以获得完全奥氏体热成型钢产品; 然后通过以比临界马氏体冷却速度高的冷却速度VR2将热成形钢产品冷却至低于Ms的淬火温度QT，以获得含有40％至90％的马氏体的结构，其余的结构是奥氏体; 然后将产品保持在或重新加热到QT和470℃之间的保持温度PT，并将其在所述温度PT下保持在5秒和600秒之间的持续时间Pt。

3. 发明申请

WO2015011547A3 SPOT WELDED JOINT USING HIGH STRENGTH AND HIGH FORMING AND ITS PRODUCTION METHOD 审中-公开
公开(公告)号：WO2015011547A3
公开(公告)日：2015-01-29
申请号：PCT/IB2014/001366
申请日：2014-07-22
申请人： ARCELORMITTAL INVESTIGACIÓN DESARROLLO SL
发明人： PERLADE, Astrid , VIGNIER, Samuel , KEGEL, Frédéric , ARLAZAROV, Artem
IPC分类号： C22C38/02 , C22C38/04 , C21D8/02 , C21D8/04 , C21D9/46 , B23K11/11 , B23K11/16
摘要： The present invention relates to a spot welded joint of at least two steel sheets, wherein at least one of the steel sheets presents yield strength above or equal to 600 MPa, an ultimate tensile strength above or equal to 1000 MPa, uniform elongation above or equal to 15%. The base metal chemical composition comprises 0.05 ≤ C ≤ 0.21 %, 4.0≤ Mn ≤ 7.0%, 0.5 ≤ Al ≤ 3.5%, Si ≤ 2.0%, Ti ≤ 0.2%, V ≤ 0.2%, Nb ≤ 0.2%, P ≤ 0.025%, B≤ 0.0035%, and the spot welded joint contains a molten zone microstructure containing more than 0.5 %of Al and containing a surface fraction of segregated areas lower than 1 %, said segregated areas being zones larger than 20μm 2 and containing more than the steel nominal phosphorus content.

4. 发明申请

WO2016079565A1 METHOD FOR MANUFACTURING A HIGH STRENGTH STEEL PRODUCT AND STEEL PRODUCT THEREBY OBTAINED 审中-公开
标题翻译：制造高强度钢产品和获得的钢产品的方法
公开(公告)号：WO2016079565A1
公开(公告)日：2016-05-26
申请号：PCT/IB2014/066128
申请日：2014-11-18
申请人： ARCELORMITTAL
发明人： ARLAZAROV, Artem , ZHU, Kangying
IPC分类号： C21D7/13 , C21D8/02 , C23C2/04 , C23C2/06 , C21D9/46 , C21D1/18 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/38
CPC分类号： C21D8/0205 , C21D1/18 , C21D7/13 , C21D8/02 , C21D8/0226 , C21D8/0263 , C21D9/46 , C21D2211/001 , C21D2211/008 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/38 , C23C2/06 , C23C2/12 , C23C2/28
摘要： A method for manufacturing a steel product, comprising the steps of: providing a heated steel starting product at a temperature comprised between 380°C and 700°C, having a metastable fully austenitic structure, with a composition comprising, in percent by weight: 0.15% ≤ C ≤ 0.40%,1.5% ≤ Mn ≤ 4.0%, 0.5% ≤ Si ≤ 2.5%, 0.005% ≤ Al ≤ 1.5%, with 0.8% ≤ Si+Al ≤ 2.5%, S ≤ 0.05%, P ≤ 0.1%, at least one element chosen among Cr and Mo, such that: 0% ≤ Cr ≤ 4.0%, 0% ≤ Mo ≤ 0.5%, and 2.7% ≤ Mn + Cr + 3 Mo ≤ 5.7%, and optionally one or several elements chosen among: Nb ≤ 0.1%, Ti ≤ 0.1%, Ni ≤ 3.0%, 0.0005% ≤ B ≤ 0.005%, 0.0005% ≤ Ca ≤ 0.005%, the balance of the composition consisting of iron and unavoidable impurities resulting from the smelting; subjecting said starting product to a hot forming step at a temperature comprised between 700°C and 380°C, with a cumulated strain e b between 0.1 and 0.7, in at least one location of said heated steel starting product, to obtain a fully austenitic hot-formed steel product; then quenching the hot-formed steel product by cooling it down, at a cooling rate VR 2 superior to the critical martensitic cooling rate, to a quenching temperature QT lower than Ms in order to obtain a structure containing between 40% and 90% of martensite, the rest of the structure being austenite; then maintaining at, or reheating the product up to a holding temperature PT between QT and 470°C and holding it at said temperature PT for a duration Pt between 5s and 600s.
摘要翻译：一种制造钢产品的方法，包括以下步骤：在380℃至700℃之间的温度下提供具有亚稳态完全奥氏体结构的加热钢起始产物，其组成包含：以重量百分比计：0.15 ％≤C≤0.40％，1.5％≤Mn≤4.0％，0.5％≤Si≤2.5％，0.005％≤Al≤1.5％，0.8％≤Si+Al≤2.5％，S≤0.05％，P≤0.1 ％，选自Cr和Mo中的至少一种元素，使得：0％≤Cr≤4.0％，0％≤Mo≤0.5％和2.7％≤Mn+ Cr +3Mo≤5.7％，以及任选的一种或几种元素选自：Nb≤0.1％，Ti≤0.1％，Ni≤3.0％，0.0005％≤B≤0.005％，0.0005％≤Ca≤0.005％，组成由铁和不可避免的杂质组成的余量 ; 在所述加热的钢起始产物的至少一个位置，使所述起始产物在700℃至380℃之间的温度下，累积应变eb为0.1至0.7的热成型步骤，以获得完全奥氏体热成型钢产品; 然后通过以比临界马氏体冷却速度高的冷却速度VR2将热成形钢产品冷却至低于Ms的淬火温度QT，以获得含有40％至90％的马氏体的结构，其余的结构是奥氏体; 然后将产品保持在或重新加热到QT和470℃之间的保持温度PT，并将其在所述温度PT下保持在5秒和600秒之间的持续时间Pt。

5. 发明申请

WO2016016779A3 A METHOD FOR PRODUCING A HIGH STRENGTH STEEL PIECE 审中-公开
标题翻译：一种生产高强度钢片的方法
公开(公告)号：WO2016016779A3
公开(公告)日：2016-02-04
申请号：PCT/IB2015/055580
申请日：2015-07-23
申请人： ARCELORMITTAL
发明人： ARLAZAROV, Artem
IPC分类号： C21D9/00 , C23C2/00 , C22C38/00
摘要： A method for producing a high strength steel piece having desired mechanical properties, obtainable by a reference heat treatment comprising a first reference treatment and a final reference treatment comprising at least an overaging, The method comprising a step of heat treating on an equipment comprising at least an overaging means for which it is possible to set at least one operating point, the final treatment comprising an overaging for which it is possible to calculate two final treatment parameters OAP1 and OAP2 depending on an operating point of the overaging means. A minimum OAP1 min and a maximum OAP2 max final treatment parameters are determined in order to obtain the desired properties, at least one operating points of the overaging section means is determined such that OAP1 ≥ OAP1 min and OAP2 ≤ OAP2 max. The piece is heat treated accordingly. The parameters are with T(t) the temperature at time t Formula (I)
摘要翻译：用于生产具有期望的机械性能的高强度钢片的方法，所述高强度钢片通过包括第一参照处理和最终参照处理的参考热处理获得，所述参照热处理包括至少过时效。所述方法包括以下步骤：在包括至少一个过时效装置的设备上进行热处理，该过时装置可以设定至少一个操作点，最终的处理包括过时效，可以根据操作点计算两个最终处理参数OAP1和OAP2 过时效的手段。确定最小OAP1min和最大OAP2max最终处理参数以获得期望的性质，确定过时效部分装置的至少一个操作点，使得OAP1≥OAP1min和OAP2≤OAP2max。该件被相应地热处理。参数与T（t）时间t时的温度公式（I）

6. 发明申请

WO2016001889A2 METHOD FOR MANUFACTURING A HIGH-STRENGTH STEEL SHEET AND SHEET OBTAINED BY THE METHOD 审中-公开
标题翻译：制造高强度钢板的方法及方法
公开(公告)号：WO2016001889A2
公开(公告)日：2016-01-07
申请号：PCT/IB2015/055033
申请日：2015-07-03
申请人： ARCELORMITTAL
发明人： XU, Wei , ARLAZAROV, Artem
CPC分类号： C21D9/46 , B32B15/013 , C21D6/005 , C21D8/0205 , C21D8/0221 , C21D8/0247 , C21D8/0263 , C21D2211/001 , C21D2211/002 , C21D2211/005 , C21D2211/008 , C22C38/02 , C22C38/04 , C22C38/06 , C23C2/06 , C23C2/285 , C23C2/40
摘要： A method for manufacturing a high-strength steel sheet having a tensile strength of more than 1100 MPa and a yield strength of more than 700 MPa, a uniform elongation UE of at least 8.0% and a total elongation of at least 10%, made of a steel containing in percent by weight: 0.1% ≤ C ≤ 0.25%, 4.5% ≤ Mn ≤ 10%, 1% ≤ Si ≤ 3%, 0.03% ≤ Al ≤ 2.5%, the remainder being Fe and impurities resulting from the smelting, the composition being such that CMn Index = Cx(1 + Mn/3.5) ≤ 0.6, the method comprising the steps of annealing a rolled sheet made of said steel by soaking it at an annealing temperature TA higher than the Ac transformation point of the steel but less than 1000°C, cooling the annealed sheet to a quenching temperature QT between 190°C and 80°C at a cooling speed sufficient to obtain a structure just after cooling containing martensite and retained austenite, maintaining the steel sheet at an overaging temperature PT between 350°C and 500°C for an overaging time Pt of more than 5 s cooling the sheet down to the ambient temperature. Sheet obtained.
摘要翻译：制造抗拉强度大于1100MPa，屈服强度大于700MPa，均匀伸长率至少为8.0％，总伸长率为10％以上的高强度钢板的制造方法，由含有重量百分比的钢：0.1％≤C≤0.25％，4.5％≤Mn≤10％，1％≤Si≤3％，0.03％≤Al≤2.5％，其余为Fe和熔炼产生的杂质，所述组成为CMn Index = Cx（1 + Mn / 3.5）≤0.6，所述方法包括以下步骤：将由所述钢制成的轧制板通过在比所述钢的Ac相变点高的退火温度TA 钢，但小于1000℃，将退火后的板材冷却至190℃〜80℃的淬火温度QT，其冷却速度足以得到刚刚冷却后的含有马氏体和残留奥氏体的结构，将钢板维持在高温温度PT在350°C和500°C之间进行超时时间超过5秒的Pt将片材冷却至环境温度。获得的表。

7. 发明申请

WO2016001703A1 METHOD FOR MANUFACTURING A HIGH STRENGTH STEEL SHEET AND SHEET OBTAINED BY THE METHOD 审中-公开
标题翻译：制造高强度钢板及其方法的方法
公开(公告)号：WO2016001703A1
公开(公告)日：2016-01-07
申请号：PCT/IB2014/002285
申请日：2014-07-03
申请人： ARCELORMITTAL
发明人： XU, Wei , ARLAZAROV, Artem
IPC分类号： C21D6/00 , C21D8/02 , C21D9/46 , C22C38/02 , C22C38/04 , C22C38/06
CPC分类号： C21D9/46 , B32B15/013 , C21D6/005 , C21D8/0205 , C21D8/0221 , C21D8/0247 , C21D8/0263 , C21D2211/001 , C21D2211/002 , C21D2211/005 , C21D2211/008 , C22C38/02 , C22C38/04 , C22C38/06 , C23C2/06 , C23C2/285 , C23C2/40
摘要： A method for manufacturing a high-strength steel sheet having a tensile strength of more than 1100 MPa and a yield strength of more than 700 MPa, made of a steel containing in percent by weight: 0.1 % ≤ C ≤ 0.35%, 4.5% ≤ Mn ≤ 10%, 1% ≤ Si ≤ 3%, 0.03% ≤ Al ≤ 2.5%, the remainder being Fe and impurities resulting from the smelting, the method comprising the steps of annealing a rolled sheet made of said steel by soaking it at an annealing temperature TA higher than the Ac-i transformation point of the steel but less than 1000°C, cooling the annealed sheet to a quenching temperature QT less than 450°C, maintaining the steel sheet at an overaging temperature PT between 350°C and 500°C for an overaging time Pt of more than 5 s cooling the sheet down to the ambient temperature. Sheet obtained.
摘要翻译：制造抗拉强度大于1100MPa，屈服强度大于700MPa的高强度钢板的制造方法，由含有重量百分比的钢，0.1％≤C≤0.35％，4.5％≤ Mn≤10％，1％≤Si≤3％，0.03％≤Al≤2.5％，其余为Fe和冶炼产生的杂质，该方法包括以下步骤：将由所述钢制成的轧制板通过将其浸渍在退火温度TA高于钢的Ac-i相变点但小于1000℃，将退火的板材冷却至低于450℃的淬火温度QT，将钢板维持在350℃以下的过高温度PT 并且对于超过5秒的超时时间Pt，将片材冷却至环境温度，则为500℃。获得的表。

8. 发明申请

WO2019092576A1 COLD ROLLED HEAT TREATED STEEL SHEET AND A METHOD OF MANUFACTURING THEREOF 审中-公开
公开(公告)号：WO2019092576A1
公开(公告)日：2019-05-16
申请号：PCT/IB2018/058664
申请日：2018-11-05
申请人： ARCELORMITTAL
发明人： PIPARD, Jean-Marc , ARLAZAROV, Artem
IPC分类号： C21D8/02 , C21D9/46 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/54
CPC分类号： C22C38/04 , C21D8/0205 , C21D8/0226 , C21D8/0236 , C21D8/0247 , C21D9/46 , C21D2211/001 , C21D2211/002 , C21D2211/008 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/06 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/54
摘要： A cold rolled and heat treated steel sheet having a composition comprising of the following elements, expressed in percentage by weight:0.10 % ≤ Carbon ≤ 0.5 %,1 % ≤ Manganese ≤ 3.4%, 0.5 % ≤ Silicon ≤ 2.5 %, 0.03 % ≤ Aluminum ≤ 1.5 %, 0 % ≤ Sulfur ≤ 0.003 % 0.002 % ≤ Phosphorus ≤ 0.02 %, 0 % ≤ Nitrogen ≤ 0.01%and can contain one or more of the following optional elements 0.05% ≤ Chromium ≤ 1 %, 0.001% ≤ Molybdenum ≤ 0. 5%, 0.001% ≤ Niobium ≤ 0.1%, 0.001% ≤ Titanium ≤ 0.1%, 0.01% ≤ Copper ≤ 2%, 0.01% ≤ Nickel ≤ 3%, 0.0001% ≤ Calcium ≤ 0.005%, 0 % ≤ Vanadium ≤ 0.1%, 0 % ≤ Boron ≤ 0.003%, 0 % ≤ Cerium ≤ 0.1%, 0 % ≤ Magnesium ≦ 0.010%, 0 % ≤ Zirconium ≦ 0.010% the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet comprising in area fraction, 10 to 30% Residual Austenite, 10 to 40% Bainite, 5% to 50% Annealed Martensite, 1% to 20% Quenched Martensite and less than 30% Tempered Martensite, wherein the cumulated amounts of Bainite and Residual Austenite is more than or equal to 25%.

9. 发明申请

WO2019092483A1 COLD ROLLED AND HEAT TREATED STEEL SHEET AND A METHOD OF MANUFACTURING THEREOF 审中-公开
公开(公告)号：WO2019092483A1
公开(公告)日：2019-05-16
申请号：PCT/IB2017/057042
申请日：2017-11-10
申请人： ARCELORMITTAL
发明人： PIPARD, jean-Marc , ARLAZAROV, Artem
IPC分类号： C22C38/00 , C21D6/00 , C21D8/02 , C23C2/02 , C21D9/46 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/12 , C22C38/14 , C22C38/16 , C22C38/20 , C22C38/24 , C22C38/26 , C22C38/28 , C22C38/32 , C22C38/34 , C22C38/38 , C22C38/58
CPC分类号： C22C38/001 , C21D6/001 , C21D6/002 , C21D6/004 , C21D6/005 , C21D6/008 , C21D8/0205 , C21D8/0226 , C21D8/0236 , C21D8/0247 , C21D8/0273 , C21D8/0426 , C21D8/0436 , C21D8/0473 , C21D9/46 , C21D9/48 , C21D2211/001 , C21D2211/002 , C21D2211/008 , C22C38/002 , C22C38/005 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/12 , C22C38/14 , C22C38/16 , C22C38/20 , C22C38/24 , C22C38/26 , C22C38/28 , C22C38/32 , C22C38/34 , C22C38/38 , C22C38/58 , C23C2/02
摘要： A cold rolled and heat treated steel sheet having a composition comprising of the following elements, expressed in percentage by weight 0.10 %≤ Carbon ≤ 0.5 %, 1 % ≤ Manganese ≤ 3.4 %, 0.5 % ≤ Silicon ≤ 2.5 %, 0.03 % ≤ Aluminum ≤ 1.5%, Sulfur ≤ 0.003 %, 0.002 % ≤ Phosphorus ≤ 0.02 %, Nitrogen ≤ 0.01 % and can contain one or more of the following optional elements 0.05 % ≤ Chromium ≤ 1 %, 0.001 % ≤ Molybdenum ≤ 0.5 %, 0.001 % ≤ Niobium ≤ 0.1 %, 0.001 % ≤ Titanium ≤ 0.1 %, 0.01 % ≤ Copper ≤ 2 %, 0.01 % ≤ Nickel ≤ 3 %, 0.0001 % ≤ Calcium ≤ 0.005 %, Vanadium ≤ 0.1 %, Boron ≤ 0.003 %, Cerium ≤ 0.1 %, Magnesiums 0.010 %, Zirconiums 0.010 % the remainder composition being composed of iron and the unavoidable impurities caused by processing, and a microstructure of the said rolled steel sheet comprises by area fraction, 10 to 30% Residual Austenite, 5 to 50% Annealed Bainite, 10 to 40 % of Bainite, 1 % to 20% Quenched Martensite, and less than 30 % Tempered Martensite where the combined presence of Bainite and Residual Austenite shall be 30% or more.

10. 发明申请

WO2019092482A1 COLD ROLLED HEAT TREATED STEEL SHEET AND A METHOD OF MANUFACTURING THEREOF 审中-公开
公开(公告)号：WO2019092482A1
公开(公告)日：2019-05-16
申请号：PCT/IB2017/057041
申请日：2017-11-10
申请人： ARCELORMITTAL
发明人： PIPARD, Jean-Marc , ARLAZAROV, Artem
IPC分类号： C21D8/02 , C21D9/46 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/54
CPC分类号： C22C38/04 , C21D8/0205 , C21D8/0226 , C21D8/0236 , C21D8/0247 , C21D9/46 , C21D2211/001 , C21D2211/002 , C21D2211/008 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/06 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/54
摘要： A cold rolled and heat treated steel sheet having a composition comprising of the following elements, expressed in percentage by weight:0.10 %

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