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·1122· 工程科学学报,第38卷,第8期 vanced bainite steels by optimisation of TIT diagrams and T0 3结论 cues.1S0m,2006,46(10):1479 (1)试验钢连续冷却过程中随着终冷温度的升 [5]Caballero FC,Bhadeshia H K D H.Very strong bainite.Solid State Mater Sci,2004,8(3):251 高,强度随之升高,塑韧性降低,抗拉强度在1300MPa [6]Gao K,Wang L D,Zhu M,et al.Refinement of grain and en- 以上,伸长率大于18%,得到比较优异的强度和塑韧 hancement of impact roughness for low-alloying ultra-high strength 性的配合. bainite steels.Acta Metall Sin,2007,43(3):315 (2)等温过程中得到较高的强度,抗拉强度接近 (高宽,王六定,朱明,等.低合金超高强度贝氏体钢的晶粒 1400MPa,但伸长率在15%左右,比连续冷却过程小 细化与韧性提高.金属学报,2007,43(3):315) 20%左右. 7]Sharma S,Sangal S,Mondal K.Development of new high- (3)试验钢利用连续冷却制度得到的综合力学性 strength carbide-free bainitic steels.Metall Mater Trans A,2011, 42(13):3921 能明显优于等温冷却制度,强塑积U大于其20% [8]Gao G H,Zhang H,Gui X L,et al.Tempering behavior of duc- 左右. tile 1700 MPa Mn-Si-Cr-C steel treated by quenching and parti- tioning process incorporating bainite formation.Mater Sci 参考文献 Technol,2015,31(2):199 [Kang M K,Yang S P,Guan D H.Bainite in Steels.Shanghai: 9]Caballero F G,BhadeshiaH K D H,Mawella K J A,et al.Very Shanghai Science and Technology Press,1990 strong low temperature bainite.Mater Sci Technol,2002,18(3): (康沫狂,杨思品,管敦惠.钢中贝氏体.上海:上海科学技术 279 出版社,1990) [10]Ju X H,Tian Z H,Cui G B,et al.Stability of retained austenite 2]Liu D Y,Xu H.Fang HS,et al.The development of low carbon in quenching and partitioning steel.Trans Mater Heat Treat, bainitic steel in China.Heat Treat,2005,20(2):12 2014,35(10):119 (刘东雨,徐鸿,方鸿生,等.我国低碳贝氏体钢的发展.热 (鞠新华,田志红,崔桂彬,等.Q&P钢中残留奥氏体的稳 处理,2005,20(2):12) 定性.材料热处理学报,2014,35(10):119) Caballero F G,Bhadeshia H K D H,Mawella K J A,et al.De- [11]Wu C J,Chen G L,Qiang W J.Science of Metal Materials.Bei- sign of novel high-strength bainitic steels:Part 1.Mater Sci jing:Metallurgical Industry Press,2000 Technol,2001,17(5):512 (吴承建,陈国良,强文江.金属材料学.北京:治金工业出 4]Caballero F G,Santofimia M J,Capdevila C,et al.Design of ad- 版社,2000)工程科学学报,第 38 卷,第 8 期 3 结论 ( 1) 试验钢连续冷却过程中随着终冷温度的升 高,强度随之升高,塑韧性降低,抗拉强度在 1300 MPa 以上,伸长率大于 18% ,得到比较优异的强度和塑韧 性的配合. ( 2) 等温过程中得到较高的强度,抗拉强度接近 1400 MPa,但伸长率在 15% 左右,比连续冷却过程小 20% 左右. ( 3) 试验钢利用连续冷却制度得到的综合力学性 能明 显 优 于 等 温 冷 却 制 度,强 塑 积 U 大 于 其 20% 左右. 参 考 文 献 [1] Kang M K,Yang S P,Guan D H. Bainite in Steels. Shanghai: Shanghai Science and Technology Press,1990 ( 康沫狂,杨思品,管敦惠. 钢中贝氏体. 上海: 上海科学技术 出版社,1990) [2] Liu D Y,Xu H,Fang H S,et al. The development of low carbon bainitic steel in China. Heat Treat,2005,20( 2) : 12 ( 刘东雨,徐鸿,方鸿生,等. 我国低碳贝氏体钢的发展. 热 处理,2005,20( 2) : 12) [3] Caballero F G,Bhadeshia H K D H,Mawella K J A,et al. De￾sign of novel high-strength bainitic steels: Part 1. Mater Sci Technol,2001,17( 5) : 512 [4] Caballero F G,Santofimia M J,Capdevila C,et al. Design of ad￾vanced bainite steels by optimisation of TTT diagrams and T0 curves. ISIJ Int,2006,46( 10) : 1479 [5] Caballero F G,Bhadeshia H K D H. Very strong bainite. Solid State Mater Sci,2004,8( 3) : 251 [6] Gao K,Wang L D,Zhu M,et al. Refinement of grain and en￾hancement of impact roughness for low-alloying ultra-high strength bainite steels. Acta Metall Sin,2007,43( 3) : 315 ( 高宽,王六定,朱明,等. 低合金超高强度贝氏体钢的晶粒 细化与韧性提高. 金属学报,2007,43( 3) : 315) [7] Sharma S,Sangal S,Mondal K. Development of new high￾strength carbide-free bainitic steels. Metall Mater Trans A,2011, 42( 13) : 3921 [8] Gao G H,Zhang H,Gui X L,et al. Tempering behavior of duc￾tile 1700 MPa Mn--Si--Cr--C steel treated by quenching and parti￾tioning process incorporating bainite formation. J Mater Sci Technol,2015,31( 2) : 199 [9] Caballero F G,BhadeshiaH K D H,Mawella K J A,et al. Very strong low temperature bainite. Mater Sci Technol,2002,18( 3) : 279 [10] Ju X H,Tian Z H,Cui G B,et al. Stability of retained austenite in quenching and partitioning steel. Trans Mater Heat Treat, 2014,35( 10) : 119 ( 鞠新华,田志红,崔桂彬,等. Q&P 钢中残留奥氏体的稳 定性. 材料热处理学报,2014,35( 10) : 119) [11] Wu C J,Chen G L,Qiang W J. Science of Metal Materials. Bei￾jing: Metallurgical Industry Press,2000 ( 吴承建,陈国良,强文江. 金属材料学. 北京: 冶金工业出 版社,2000) · 2211 ·
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