利用放电等离子烧结技术(SPS)研究了M42粉末高速钢/45钢双金属连接技术,分析了连接接头的界面形貌,测试了连接接头的界面结合强度.结果表明:在970℃×10 min×70 MPa烧结工艺下,可一次性实现M42粉末高速钢的烧结及其与45钢的连接;接头的M42粉末冶金高速钢部分,显微组织均匀,碳化物细小、无偏析,经工艺1180℃×5 min×550℃×1 h热处理后,硬度达到67.36 HRC;M42/45钢连接接头组织致密且均匀,界面两侧有元素扩散,属冶金结合,界面结合强度可达到550 MPa.
One-step fabrication of bimetal joints consisting of M42 powder metallurgy high speed steel (P/M HSS) and 45 steel (M42/45) via spark plasma sintering (SPS) technique is reported.The microstructure of joint interfaces were characterized and the mechanical properties were measured.It is found that fabrication of M42/45 joints is accomplished by spark plasma sintering at 970 ℃ and 70 MPa for 10 min.The as-fabricated M42 P/M HSS,which plays as the working parts of the bimetal,exhibits the uniform microstructure with fine grain size and without carbide segregation.Its Rockwell hardness reaches 67.36 HRC after quenching at 1180 ℃ for 5 min and ternary tempering at 550 ℃ for 1 h,which is much higher than that of conventional sintered ones.The tensile strength of the bimetal joint is up to 550 MPa,which is attributed to the sound interface with few defects obtained by spark plasma sintering.Current work provides a facile and useful method for fabrication of bimetal joints with high quality,which benefits the fabrication of composites to save the cost of metals acting as working parts.
参考文献
| [1] | Mehmet Simsir;Levent Cenk Kumruoglu;Ali OEzer .An Investigation Into Stainless-steel/structural-alloy-steel Bimetal Produced By Shell Mould Casting[J].Materials & design,2009(2):264-270. |
| [2] | O. Yilmaz;H. Celik .Electrical and thermal properties of the interface at diffusion-bonded and soldered 304 stainless steel and copper bimetal[J].Journal of Materials Processing Technology,2003(1):67-76. |
| [3] | Krishna B V;Venugopal P;Rao K P .Co-extrusion of dissimilar sintered P/M performs-an explored route to produce bimetallic tubes[J].Materials Science and Engineering A,2005,407:77-83. |
| [4] | Ko D C;Lee S K;Kim B M et al.Evaluation of copper coating ratio in steel/copper clad wire drawing[J].Journal of Materials Processing Technology,2007,186:22-26. |
| [5] | S. W. Kim;U. J. Lee;K. D. Woo .Solidification microstructures and mechanical properties of vertical centrifugal cast high speed steel[J].Materials Science and Technology: MST: A publication of the Institute of Metals,2003(12):1727-1732. |
| [6] | Ruiz-Navas E M;García R;Gordo E et al.Development and characterisation of high speed steel matrix coroposites gradient materials[J].Journal of Materials Processing Technology,2003,143-144:769-775. |
| [7] | Gimenez S;Zubizarreta C;Trabadelo V;Iturriza I .Sintering behaviour and microstructure development of T42 powder metallurgy high speed steel under different processing conditions[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2008(1/2):130-137. |
| [8] | Z. Y. Liu;N. H. Loh;K. A. Khor;S. B. Tor .Microstructure evolution during sintering of injection molded M2 high speed steel[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2000(1/2):46-55. |
| [9] | B. LEVENFELD;A. VAREZ;J.M. TORRALBA .Effect of Residual Carbon on the Sintering Process of M2 High Speed Steel Parts Obtained by a Modified Metal Injection Molding Process[J].Metallurgical and Materials Transactions, A. Physical Metallurgy and Materials Science,2002(6):1843-1851. |
| [10] | V. Trabadelo;S. Gimenez;I. Iturriza .Development of powder metallurgy T42 high speed steel for structural applications[J].Journal of Materials Processing Technology,2008(1/3):521-527. |
| [11] | Trabadelo, V;Gimenez, S;Iturriza, I .Microstructural characterisation of vacuum sintered T42 powder metallurgy high-speed steel after heat treatments[J].Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing,2009(1/2):360-367. |
| [12] | R. Colaco;E. Gordo;E. M. Ruiz-Navas;M. Otasevic;R. Vilar .A comparative study of the wear behaviour of sintered and laser surface melted AISI M42 high speed steel diluted with iron[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,2006(9/10):949-956. |
| [13] | Rahamann M N.Sintering of Ceramics[M].LRC Press Taylor & Francis Group,2008:1-110. |
| [14] | Mamoru Omori .Sintering, consolidation, reaction and crystal growth by the spark plasma system (SPS)[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2000(2):183-188. |
| [15] | Munir ZA;Anselmi-Tamburini U;Ohyanagi M .The effect of electric field and pressure on the synthesis and consolidation of materials: A review of the spark plasma sintering method[J].Journal of Materials Science,2006(3):763-777. |
| [16] | Shen Z;Nygren M .Microstructural prototyping of ceramics by kinetic engineering:application of spark plasma sintering[J].The Chemistry Record,2005,5:173-184. |
| [17] | Lian Gao;Zhijian Shen;Hiroki Miyamoto;Mats Nygren .Superfast densification of oxide/oxide ceramic composites[J].Journal of the American Ceramic Society,1999(4):1061-1063. |
| [18] | Bolton J D;Gant A J .Heat treatment of PM high speed steel based metal matrix composites[J].Metal Powder Report,1996,46:51-54. |
| [19] | Berns H .The fatigue behaviour of conventional and powder metallurgy HSS[J].Journal of Powder Metal International,1987,19:22-26. |
| [20] | 刘耀辉,刘海峰,于思荣,郭国超,洪家旺.高速钢/结构钢双金属复合材料界面研究[J].特种铸造及有色合金,2001(02):17-19. |
| [21] | Liu Q M .High chrome casting iron/middle carbon steel bimetal interface and simulation of temperature field[D].Zhezhou:China Zhengzhou University,2003. |
| [22] | 周小平,华林.高速钢表面硬质合金覆层的组织及性能[J].特种铸造及有色合金,2006(08):472-474. |
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