用Gleeble-3500热力模拟试验机对铸态M2高速钢进行1000 ～ 1150℃及0.01 ～1.0 s-1的热压缩变形,获得了铸态M2高速钢的流变曲线,分析了变形后的显微组织特性.结果表明,铸态M2高速钢的流变应力和峰值应变均随变形温度的降低和应变速率的提高而增大,其热变形激活能为550.16 kJ/mol,同时得到了其热变形方程,建议其在1050 ～1150℃和0.01 ～1.0s-1的工艺条件下进行热加工.
参考文献
| [1] | George Krauss.Steels:Heat Treatment and Processing Principles[M].USA,Materials Park,1989:401-413. |
| [2] | Imbert C;Ryan N D;Mc Queen H J .Hot workability of three grades of tool steel[J].Metallurgical and Materials Transactions,1984,15:1855-1864. |
| [3] | C. A. C. Imbert;H. J. McQueen .Peak strength, strain hardening and dynamic restoration of A2 and M2 tool steels in hot deformation[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2001(1/2):88-103. |
| [4] | C. A. C. Imbert;H. J. McQueen .Dynamic recrystallization of A2 and M2 tool steels[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2001(1/2):104-116. |
| [5] | 张彩东,蒋斌,杨琴,丁培道.M2高速钢工业铸带中共晶碳化物及其演化[J].材料热处理学报,2009(03):107-110. |
| [6] | Jiantao Liu;Hongbing Chang .Investigation on hot deformation behavior of AISI T 1 high-speed steel[J].Materials Characterization,2000(3):175-186. |
| [7] | Farag M M;Sellars C M .Flowstress in hot extrusion of commercial-purity aluminum[J].Journal of the Institute of Metals,1973,101(05):137-145. |
| [8] | Jonas J J;Sellars C M;Tegart W J .Strength and structure under hot working conditions[J].International Metals Reviews,1969,130(14):1-24. |
| [9] | Juan Liu;Zhenshan Cui;Congxin Li .Analysis of metal workability by integration of FEM and 3-D processing maps[J].Journal of Materials Processing Technology,2008(1/3):497-505. |
| [10] | O. Sivakesavam;Y.V.R.K. Prasad .Hot deformation behaviour of as-cast Mg-2Zn-1Mn alloy in compression: a study with processing map[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2003(1/2):118-124. |
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