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| Effects of Si and Cr on microstructure and mechanical properties of ultra high strength dual-phase steel |
| YE Jie-yun1， ZHAO Zheng-zhi2， ZHANG Ying-hui1， QI Liang1 |
1. School of Material Science and Engineering， Jiangxi University of Science and Technology， Ganzhou 341000， Jiangxi， China
2. Engineering Research Institute， University of Science and Technology of Beijing，Beijing 100083， China |
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Abstract The effects of Cr and Si on the transformation of C-Cr-Mn-Nb and C-Si-Mn-Nb ultra-high strength dual phase steels were analyzed by using thermal dilatometer. The microstructure properties and the fracture surfaces of the steels were tested by tensile tests， optical microscopy， scanning electron microscopy and transmission electron microscope. The results show that the addition of Si can increase the temperature of [Ac1]and[Ac3]， enlarge the two phase region， promote the ferrite transformation， increase the aging stability of martensite and improve its morphology and distribution; the addition of Cr leads to the uneven distribution of C in austenite， the appearance of lamellar and parallel twin microstructure， as well as the appearance of residual austenite and the M/A in the fast cooling stage and the decomposition of some martensite in overaging stage. Although tensile strength and elongation of the two steels both exceed 1 000 MPa and 15% respectively， the comprehensive mechanical properties of DP steel containing Si are superior to that containing Cr.
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Received: 19 June 2014
Published: 18 March 2015
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| [1] |
马鸣图, 吴宝榕. 双相钢-物理和力学冶金[M]. 第二版, 北京: 冶金工业出版社, 2009
|
| [1] |
马鸣图, 吴宝榕. 双相钢-物理和力学冶金[M]. 第二版, 北京: 冶金工业出版社, 2009
|
| [2] |
叶洁云, 赵征志, 汪志刚, 赵爱民.1000 MPa 级C-Si-Mn-Nb 系冷轧双相钢的组织性能[J].材料热处理学报, 2013, 34(4):104-110
|
| [2] |
叶洁云, 赵征志, 汪志刚, 赵爱民.1000 MPa 级C-Si-Mn-Nb 系冷轧双相钢的组织性能[J].材料热处理学报, 2013, 34(4):104-110
|
| [3] |
代启锋, 宋仁伯, 蔡恒君, 于三川, 高结. 超高强冷轧双相钢DP1000高应变速率下的拉伸性能[J]. 材料研究学报, 2013, 27(1): 25-31
|
| [3] |
代启锋, 宋仁伯, 蔡恒君, 于三川, 高结. 超高强冷轧双相钢DP1000高应变速率下的拉伸性能[J]. 材料研究学报, 2013, 27(1): 25-31
|
| [4] |
Takehide SENUMA. Physical Metallurgy of Modern High Strength Steel Sheets[J]. ISIJ International, 2001, 41(6):520-532
|
| [4] |
Takehide SENUMA. Physical Metallurgy of Modern High Strength Steel Sheets[J]. ISIJ International, 2001, 41(6):520-532
|
| [5] |
米振莉, 段路昭, 李志超, 江海涛, 代乐乐. 连续退火温度对高硅双相钢组织及性能影响[J]. 钢铁, 2013, 48(9): 54-57
|
| [5] |
米振莉, 段路昭, 李志超, 江海涛, 代乐乐. 连续退火温度对高硅双相钢组织及性能影响[J]. 钢铁, 2013, 48(9): 54-57
|
| [6] |
A Nouri, H Saghafian, Sh Kheirandish. Effects of Silicon Content and Intercritical Annealing on Manganese Partitioning in Dual Phase Steels[J]. Journal of Iron and Steel research, 2010, 5(17): 44-50
|
| [6] |
A Nouri, H Saghafian, Sh Kheirandish. Effects of Silicon Content and Intercritical Annealing on Manganese Partitioning in Dual Phase Steels[J]. Journal of Iron and Steel research, 2010, 5(17): 44-50
|
| [7] |
lchiro Tsukatani, Shunichi Hashimoto, Tsuyoshi Inoue. Effects of Silicon and Manganese Addition on Mechanical Properties of High-strength Hot-rolled Sheet Steel Containing Retained-Austenite[J]. ISIJ International, 1991, 31(9): 992-1000
|
| [7] |
lchiro Tsukatani, Shunichi Hashimoto, Tsuyoshi Inoue. Effects of Silicon and Manganese Addition on Mechanical Properties of High-strength Hot-rolled Sheet Steel Containing Retained-Austenite[J]. ISIJ International, 1991, 31(9): 992-1000
|
| [8] |
Son, YILee, YKPark, et al.Ultrafine grained ferrite-marten site dual phase steels fabricated via equal channel angular pressing: Microstructure and tensile properties[J]. Acta Materialia, 2005, 53(11):3125-3134
|
| [8] |
Son, YILee, YKPark, et al.Ultrafine grained ferrite-marten site dual phase steels fabricated via equal channel angular pressing: Microstructure and tensile properties[J]. Acta Materialia, 2005, 53(11):3125-3134
|
| [9] |
赵征志，叶洁云，汪志刚，赵爱民.高强度冷轧双相钢应变硬化行为[J].沈阳工业大学学报,2013,35(1):36-40
|
| [9] |
赵征志，叶洁云，汪志刚，赵爱民.高强度冷轧双相钢应变硬化行为[J].沈阳工业大学学报,2013,35(1):36-40
|
| [10] |
王笑天. 金属材料学[M]. 北京:机械工业出版社,1987
|
| [10] |
王笑天. 金属材料学[M]. 北京:机械工业出版社,1987
|
| [11] |
Nouri A,Saghafian H, Kheirandish. Effects of Silicon Content and Intercritical Annealing on Manganese Partitioning in Dual Phase Steels[J]. Journal of Iron and Steel research, 2010, 5(17):44-50
|
| [11] |
Nouri A,Saghafian H, Kheirandish. Effects of Silicon Content and Intercritical Annealing on Manganese Partitioning in Dual Phase Steels[J]. Journal of Iron and Steel research, 2010, 5(17):44-50
|
| [12] |
A. García-Junceda, F.G. Caballero, C Capdevila, C García de Andrés. Determination of local carbon content in austenite during intercritical annealing of dual phase steels by PEELS analysis[J]. Scripta materialia, 2007, 57(2):89-92
|
| [12] |
A. García-Junceda, F.G. Caballero, C Capdevila, C García de Andrés. Determination of local carbon content in austenite during intercritical annealing of dual phase steels by PEELS analysis[J]. Scripta materialia, 2007, 57(2):89-92
|
| [13] |
J.Lis, A.K.Lis, C.Kolan. Pressing and properties of C-Mn steel with dual-phase microstructure[J].Journal of Materials Processing Technology, 2005, 162-163(5): 350-354
|
| [13] |
J.Lis, A.K.Lis, C.Kolan. Pressing and properties of C-Mn steel with dual-phase microstructure[J].Journal of Materials Processing Technology, 2005, 162-163(5): 350-354
|
| [14] |
U.F.Kocks, H.Mecking. Physicsand phenomenology of strain hardening:the FCC case[J]. Progress in Materials Science, 2003, 48(3): 171-273
|
| [14] |
U.F.Kocks, H.Mecking. Physicsand phenomenology of strain hardening:the FCC case[J]. Progress in Materials Science, 2003, 48(3): 171-273
|
| [15] |
金光灿, 赵征志, 徐刚, 赵爱民, 刘光明.1000MPa热镀锌双相钢组织和断裂机理[J]. 北京科技大学学报,2009,31(10):1245-1249
|
| [15] |
金光灿, 赵征志, 徐刚, 赵爱民, 刘光明.1000MPa热镀锌双相钢组织和断裂机理[J]. 北京科技大学学报,2009,31(10):1245-1249
|
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2015, Vol. 50 
