H13热作模具钢在电渣重熔过程中会在凝固末端形成粗大的碳化物及氮化物,由于生成温度高,热稳定性好,会保留到最终热处理状态,对钢材的性能产生严重影响.应用偏析模型计算并说明了凝固过程生成粗大的共晶碳化物和氮化物的可能,当固相率达到0.82时由残余液相生成TiN,随着温度进一步下降在接近凝固终点时生成VC0.88,由于碳化物中固溶了其他合金元素,认为生成的VC0.88的活度不为1,试验检测的碳化物合金元素含量与理论假设基本吻合.对粗大的碳氮化物的特点及细化减少碳化物进行简单讨论.
参考文献
| [1] | Mebarki N;Delagnesa D;Lamesle P et al.Relationship Between Microstructure and Mechanical Properties of a 5 % Cr Tempered Martensitic Tool Steel[J].Materials Science and Engineering A,2004,387:171. |
| [2] | Shahram Kheirandish,Ahmad Noorian.Effect of Niobium on Microstructure of Cast AISI H13 Hot Work Tool Steel[J].钢铁研究学报（英文版）,2008(04):61-66. |
| [3] | 宋雯雯,闵永安,吴晓春.H13钢中的碳化物分析及其演变规律研究[J].材料热处理学报,2009(05):122-126. |
| [4] | HU Xin-bin;LI Lin;WU Xiao-chun et al.Coarsening Behav ior of M23C6 Carbides After Ageing or Thermal Fatigue in AISI H13 Steel with Niobium[J].International Journal of Fatigue,2006,28:175. |
| [5] | 周健,马党参,刘宝石,康爱军,李向阳.H13钢带状偏析演化规律研究[J].钢铁研究学报,2012(04):47-52,57. |
| [6] | LAN Jie;HE Jun-jie;DING Wen-jiang et al.Effect of Rare Earth Metals on the Microstructure and Impact Toughness of a Cast 0.4C 5Cr-1.2Mo-1.0V Steel[J].ISIJ International,2000,40(12):1275. |
| [7] | MA Dang-shen,ZHOU Jian,CHEN Zai-zhi,ZHANG Zhong-kan,CHEN Qi-an,LI De-hui.Influence of Thermal Homogenization Treatment on Structure and Impact Toughness of H13 ESR Steel[J].钢铁研究学报（英文版）,2009(05):56-60. |
| [8] | Sj(o)berg B;Cederlund A;Engstr(o)m C H.The Influence of ESR Melting Rate and Ingot Size on Some Important Tool Steels[A].Tokyo:The Iron and Steel Institute of Japan,1973:218. |
| [9] | MA Zhong-ting;Janke Dieter .Characteristics of Oxide Pre cipitation and Growth During Solidification of Deoxidized Steel[J].ISIJ International,1998,38(01):46. |
| [10] | S. K. CHOUDHARY;A. GHOSH .Mathematical Model for Prediction of Composition of Inclusions Formed during Solidification of Liquid Steel[J].ISIJ International,2009(12):1819-1827. |
| [11] | Zhongzhu LIU;Jun WEI;Kaike CAI .A Coupled Mathematical Model of Microsegregation and Inclusion Precipitation during Solidification of Silicon Steel[J].ISIJ International,2002(9):958-963. |
| [12] | 阳燕,刘建华,包燕平,赵鹏,魏宁,留津津.热作模具钢H13的非金属夹杂物研究[J].钢铁,2011(09):45-49. |
| [13] | SHI Cheng-bin;CHEN Xi-chun;GUO Han-jie et al.Control of MgO @ Al2O3 Spinel Inclusions During Protective Gas Electroslag Remelting of Die Steel[J].Metallurgical and Materials Transactions B:Process Metallurgy and Materials Processing Science,2013,48(02):378. |
| [14] | Clyne T W;Kurz W .Solute Redistribution During Solidification With Rapid Solid State Diffusion[J].Metallurgical Transactions A,1981,12(06):965. |
| [15] | YOUNG-MOK WON;BRIAN G. THOMAS .Simple Model of Microsegregation during Solidification of Steels[J].Metallurgical and Materials Transactions, A. Physical Metallurgy and Materials Science,2001(7):1755-1767. |
| [16] | Ballantyne A S;Kennedy R J;Mitchell A.The Influence of Melting Rate on Structure in VAR and ESR Ingots[A].Hanau:Chairman of Organising and Executive Committee,1976:181. |
| [17] | 霍晓阳.影响H13热作模具钢等向性的因素[J].钢铁研究学报,2008(11):47-50,54. |
| [18] | Sigworth G K;Elliot J F.The Thermodynamics of Liquid Dilute Iron Alloys[J].Metal Science Journal,1974(08):298. |
| [19] | DU Si-chen .Standard Gibbs Energies of Formation of the Carbides of Vanadium by Emf Measurement[J].Metallurgical Transactions B,1990,21(02):313. |
| [20] | J.-J. PAK;Y.-S. JEONG;I.-K. HONG .Thermodynamics of TiN formation in Fe-Cr melts[J].ISIJ International,2005(8):1106-1111. |
| [21] | Seong-Ho SEOK;Takahiro MIKI;Mitsutaka HINO .Equilibrium between Ti and O in Molten Fe-Ni, Fe-Cr and Fe-Cr-Ni Alloys Equilibrated with 'Ti_3O_5' Solid Solution[J].ISIJ International,2011(4):566-572. |
| [22] | 郭汉杰.冶金物理化学教程[M].北京:冶金工业出版社,2010 |
| [23] | HUANG Xue-bing;ZHANG Yun;LIU Yu-lin et al.Effect of Small Amount of Nitrogen on Carbide Characteristics in Unidirectional Ni Base Superalloy[J].Metallurgical and Materials Transactions A:Physical Metallurgy and Materials Science,1997,28(10):2143. |
| [24] | Fernandez R;Lecomte J C;Kattamis T Z .Effect of Solidification Parameters on the Growth Geometry of MC Carbide in IN-100 Dendritic Monocrystals[J].Metallurgical Transactions A,1978,9(10):1381. |
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