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材料工程  2013 

Mo和Ni对高强无碳化物贝氏体钢组织转变与力学性能的影响

DOI: 10.3969/j.issn.1001-4381.2013.09.004, PP. 16-21

Keywords: Mo/Ni,高强钢,显微组织,无碳化物贝氏体,力学性能

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Abstract:

测定了不含Mo和Ni、含Ni和含Mo三种成分实验钢的CCT曲线,利用扫描电镜、透射电镜观察了连续冷却及轧后空冷条件下三种钢的显微组织变化,并对其力学性能进行了检测分析。结果表明添加少量Mo和Ni能有效延迟高强无碳化物贝氏体钢CCT曲线中高温铁素体相变,降低Ms点,促进贝氏体相变。Mo和Ni的添加可使实验钢轧后空冷组织由铁素体+粒状贝氏体+M/A混合组织转变为无碳化物贝氏体组织(BF+AR),Ni对贝氏体板条的细化作用比Mo显著,但组织中会出现少量粗大贝氏体;Mo对轧后相变过程中粗大贝氏体的形成有一定抑制作用,可使获得的无碳化物贝氏体组织均匀性更好。Mo和Ni均可有效提高高强无碳化物贝氏体钢的力学性能,其中Ni对抗拉强度的提升作用强于Mo,而Mo则更有利于冲击韧性的提高。含Ni的2#实验钢抗拉强度比不加Ni和Mo的1#实验钢提高252MPa,含Mo的3#实验钢-20℃下冲击吸收功比1#提高11J。

References

[1]  CABALLERO F G,BHADESHIA H K D H,MAWELLA K J A, et al. Design of novel high-strength bainitic steels[J].Materials Science and Technology, 2001,17(5):512-516.
[2]  CABALLERO F G,SANTOFIMIA M J,CAPDEVILA C, et al. Design of advanced bainite steels by optimisation of TTT diagrams and T0 curves[J].ISIJ International, 2006, 46(10):1479-1488.
[3]  方鸿生,刘东雨,常开地,等.1500MPa级经济型贝氏体/马氏体复相钢的组织与性能[J].钢铁研究学报,2001,13(3):32-36.FANG Hong-sheng,LIU Dong-yu,CHANG Kai-di, et al. Microstructure and properties of 1500MPa economical bainite/martensite duplex phase steel[J]. Journal of Iron and Steel Research, 2001,13(3):31-36.
[4]  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[J]. 金属学报,2007,43(3):315-320.GAO Kuan, WANG Liu-ding, ZHU Ming, et al. Refinement of grain and enhancement of impact roughness for low-alloying ultra-high strength bainite steels[J]. Acta Metall Sinica, 2007,43(3):315-320.
[5]  KOZESCHNIK E, BHADESHIA H K D H. Influence of silicon on cementite precipitation in steels[J].Materials Science and Technology, 2008,24(3):343-347.
[6]  SAHA PODDER A, BHADESHIA H K D H. Thermal stability of austenite retained in bainitic steels[J].Materials Science and Engineering A,2010,527(7):2121-2128.
[7]  黄进峰, 方鸿生, 徐平光, 等. 硅对中低碳贝氏体铸钢组织和性能的影响[J]. 金属热处理,2000,(6):2-5.HUANG Jin-feng,FANG Hong-sheng,XU Ping-guang, et al. Influence of Si on structure and properties for bainitic cast steels[J]. Heat Treatment of Metals, 2000,(6):2-5.
[8]  BARBACKI A, MIKOLAJSKI E. Optimization of heat treatment conditions for maximum toughness of high strength silicon steel[J].Journal of Materials Processing Technology,1998,78(1):18-23.
[9]  ABALLERO F G, SANTOFIMIA M J, CHAO J, et al. Theoretical design and advanced microstructure in super high strength steels[J].Materials and Design, 2009,30(16):2077-2083.
[10]  徐光,王巍,张鑫强,等.金属材料CCT曲线测定及绘制[M].北京:化学工业出版社,2009.
[11]  曹艺,王昭东,吴迪,等.Mo和Ni对低合金耐磨钢连续冷却转变的影响[J].材料热处理学报,2011,32(5):74-78. CAO Yi, WANG Zhao-dong, WU Di, et al. Effect of Mo and Ni on continuous cooling transformation of low alloy wear-resistant steel[J]. Transactions of Materials and Heat Treatment, 2011,32(5):74-78.
[12]  周洪宝,蔡庆伍,武会宾,等. 连续缓慢冷却贝氏体转变特征及合金元素分布的影响[J]. 材料工程,2011,(12):10-15. ZHOU Hong-bao, CAI Qing-wu, WU Hui-bin, et al. Transformation characteristic of slowly continuous cooling bainite and effect of alloy elements in microstructures[J]. Journal of Materials Engineering,2011,(12):10-15.
[13]  KEEHAN E, KARLSSON L, ANDREN H O. Influence of carbon, manganese and nickel on microstructure and properties of strong steel weld metals[J].Science and Technology of Welding & Joining, 2006,11(1):1-8.
[14]  BHADESHIA H K D H, KEEHAN E, KARLSSON L, et al. Coalesced bainite[J].Transactions of the Indian Institute of Metals, 2006,59:689-694.
[15]  谭起兵.稀土对Mn-RE系贝氏体钢相变动力学及组织的影响.贵阳:贵州大学,2008.
[16]  李洪波,刘向东,金宝士, 等.一种新型低碳贝氏体钢的研制[J].佳木斯大学学报:自然科学版,2006,24(1):19-21. LI Hong-bo, LIU Xiang-dong,JIN Bao-shi, et al. Design and manufacture of a new low-carbon bainitic steel[J]. Journal of Jiamusi University:Natural Science Edition, 2006,24(1):19-21.
[17]  CHATTERJEE S, BHADESHIA H K D H. TRIP-assisted steels: cracking of high-carbon martensite[J].Materials Science and Technology, 2006,22(6):645-649.
[18]  CABALLERO F G, CHAOA J, CORNIDEA J, et al. Toughness deterioration in advanced high strength bainitic steels[J].Materials Science and Engineering: A, 2009, 525(2):87-95.

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