基于团簇模型的高强度马氏体沉淀硬化不锈钢成分设计
收稿日期: 2012-02-07
修回日期: 2012-05-28
网络出版日期: 2012-10-11
基金资助
国家自然科学基金项目51171035和50901012及辽宁省博士后启动基金项目资助
COMPOSITION DESIGN OF HIGH–STRENGTH MARTENSITIC PRECIPITATION HARDENING STAINLESS STEELS BASED ON A CLUSTER MODEL
Received date: 2012-02-07
Revised date: 2012-05-28
Online published: 2012-10-11
Supported by
Supported by National Natural Science Foundation of China (Nos.51171035 and 50901012) and Liaoning Province Postdoctoral Startup Fund
利用“团簇加连接原子”结构模型研究了马氏体沉淀硬化不锈钢的成分特征,结果表明, 此类钢的基础三元Fe-Ni-Cr高温奥氏体下限成分对应团簇成分式[NiFe12]Cr3, 其中NiFe12为fcc结构, Ni为中心原子,其与12个Fe原子配位构成立方八面体团簇, Cr为连接原子. 以[NiFe12]Cr3为基础成分式, 根据团簇式自洽放大和相似组元替代原则, 添加C, Mo,Nb和Cu形成多元新合金, 采用铜模吸铸快冷技术制备合金, 并在1323 K保温2 h进行固溶处理后水淬, 然后再在753 K保温4 h进行时效处理. 结果表明,固溶和时效后的系列合金的组织和性能随合金化组元的种类及含量发生变化,其中{[(Ni13Cu3)Fe192](Cr45Mo2.5Nb0.5)}C1合金在时效处理后具有较高的硬度和拉伸强度, 其硬度为397 HV, 屈服强度为971 MPa,抗拉强度为1093 MPa, 该成分合金在3.5%NaCl(质量分数)中性溶液中具有优良的耐蚀性能.
关键词： 马氏体沉淀硬化不锈钢; “团簇加连接原子”结构模型; 合金化; 成分设计; 高强度
王清 查钱锋 刘恩雪 董闯 王学军 谭朝鑫 冀春俊 . 基于团簇模型的高强度马氏体沉淀硬化不锈钢成分设计[J]. 金属学报, 2012 , 48(10) : 1201 -1206 . DOI: 10.3724/SP.J.1037.2012.00053
The present work investigates composition characteristics of martensitic precipitation hardening stainless steels using a cluster–plus–glue–atom model. In this kind of steels based on the basic ternary Fe–Ni–Cr, the lowest solubility limit of high–temperature austenite corresponds to the cluster formula [NiFe12]Cr3, where NiFe12 is a cuboctahedron centered by Ni and surrounded by 12 Fe atoms in fcc structure and Cr serves as glue atoms. New multi–component alloys were designed by adding C, Mo, Nb and Cu into the basic [NiFe12]Cr3 with self–magnification of cluster formula and similar element substitution. These alloys were prepared by copper mould suction casting method, then solid–solution treated at 1323 K for 2 h followed by water–quenching, and finally aged 753 K for 4 h. The experimental results show that the microstructures and properties of the serial solid–solution treated and aged alloys vary with alloying elements and their contents. Among them, the {[(Ni13Cu3)Fe192](Cr45Mo2.5Nb0.5)}C1 alloy has higher microhardness and tensile strengths, the hardness is 397 HV, yield strength is 971 MPa and ultra strength is 1093 MPa after aging treatment. {[(Ni13Cu3)Fe192](Cr45Mo2.5Nb0.5)}C1 exhibits good corrosion–resistance in 3.5%NaCl solution.
[1] Zhao X C, Song W S, Yang Z Y, Liang J X, Li W H. High Strength and Super–high Strength Stainless Steels. Beijing: Metallurgical Industry Press, 2008: 244
(赵先存, 宋为顺, 杨志勇, 梁剑雄, 李文辉. 高强度超高强度不锈钢. 北京: 冶金工业出版社, 2008: 244)
[2] Floreen S. Met Rev, 1968; 13: 115
[3] Decker R F, Floreen S. Proc Conf on Maraging Steels–Recent Developments and Applications, Warrendale, PA:TMS–AIME, 1988: 1
[4] Garrison W M. JOM, 1990; 42: 20
[5] Zhou Q Q, Zhai Y C. Acta Metall Sin, 2009; 45: 1249
(周倩青, 翟玉春. 金属学报, 2009; 45: 1249)
[6] Qiao G Y, Xiao F R, Tan C X. Spec Steel, 1998; 19: 18
(乔桂英, 肖福仁, 谭朝鑫. 特殊钢, 1998; 19: 18)
[7] Hsiao C N, Chiou C S, Yang J R. Mater Chem Phys, 2002;74: 134
[8] Wang J, Zou H, Li C, Yeng Y H, Qiu S Y, Shen B L. Nucl Eng Des, 2006; 236: 2531
[9] Sen D, Patra A K, Mazumder S, Mittra J, Dey G K, De P K. Mater Sci Eng, 2005; A397: 370
[10] Schaeffler A L. Met Prog, 1949; 56: 680
[11] Delong W T, Ostrom G, Szumachowski E. Weld J, 1956; 35: s521
[12] Olson G B. Science, 1997; 277: 1237
[13] Xu W, Rivera–Diaz–del–Castillo P E J, Yan W, Yang K, San Martin S, Kestens L A I, van der Zwaag S. Acta Mater, 2010; 58: 4067
[14] Dong C, Wang Q, Qiang J B, Wang Y M, Jiang N, Han G, Li Y H, Wu J, Xia J H. J Phys, 2007; 40D: 273
[15] Wang Q, Dong C, Qiang J B, Wang Y M. Mater Sci Eng, 2007; A18: 449
[16] Zhang J, Wang Q, Wang Y M, Li C Y, Wen L S, Dong C. J Mater Res, 2010; 25: 328
[17] Ma R T, Hao C P, Wang Q, Ren M F, Wang Y M, Dong C. Acta Metall Sin, 2010; 46: 1034
(马仁涛, 郝传璞, 王清, 任明法, 王英敏, 董闯. 金属学报, 2010; 46: 1034)
[18] Li B Z, Wang Q, Wang Y M, Li C Y, Qiang J B, Ji C J, Dong C. Metall Mater Trans, 2012; 43A: 544
[19] Takeuchi A, Inoue A. Mater Trans JIM, 2005; 46: 2817
[20] Raynor G V, Rivlin V G. Phase Equilibria in Iron Ternary Alloys. London: Inst Metals, 1988: 316
[21] Abdelshehid M, Mahmodieh K, Mori K, Chen L, Stoyanov P, Davlantes D, Foyos J, Ogren J, Clark Jr R, Es–Said O S. Eng Failure Anal, 2007; 14: 626
[22] Dong H, Esfandiari M, Li X Y. Surf Coat Technol, 2008; 202: 2969
[23] Greer A L. Science, 1995; 267: 1947
[24] Shiflet G. Science, 2003; 300: 443
[25] Lo K H, Shek C H, Lai J K L. Mater Sci Eng, 2009; R65: 39
[26] H¨attestrand M, Nilsson J O, Stiller K, Liu P, Andersson M. Acta Mater, 2004; 52: 1023
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