The effect of thermomechanical processing (TMP) on the mechanical properties of hot rolled multiphase steel was investigated. TMP was conducted using a laboratory hot rolling mill, in which three different kinds of finish rolling deformation degrees and temperatures were applied. The results indicate that polygonal ferrite, granular bainite, and a considerable amount of stabilized retained austenite can be obtained by TMP. The stability of the retained austenite increases with decreasing finish rolling temperature and increasing finish rolling deformation degrees. Ultimate tensile strength (σb), total elongation (δ), and the product of ultimate tensile strength by total elongation (σb·δ) for 50% reduction at finish rolling temperature of 700 ℃ reach maximum values [791 MPa, 36% and 28 476 (MPa·%), respectively].
参考文献
| [1] | LI Zhuang,WU Di,HU Rong.Effect of Silicon and Manganese on Mechanical Properties of Low-Carbon Plain TRIP Steel[J].钢铁研究学报（英文版）,2005(03):51-55. |
| [2] | Sakuma Y;Matsumura O;Takechi H .Mechanical Properties and Retained Austenite in Intercritically Heat-Treated Bainite-Transformed Steel and Their Variation With Si and Mn Additions[J].Metallurgical and Materials Transactions,1991,22A(02):489. |
| [3] | Sugimoto K I;Misu M;Kobayashi M et al.Effects of SecondPhase Morphology on Retained Austenite Morphology and Tensile Properties in a TRIP-Aided Dual-Phase Steel Sheet[J].ISIJ International,1993,33(07):775. |
| [4] | M. De MEYER .The Influence of the Substitution of Si by Al on the Properties ofCold Rolled C-Mn-Si TRIP Steels[J].ISIJ International,1999(8):813-822. |
| [5] | Sugimoto K I;Kobayashi M;Hashimoto S I .Ductility and Strain-Induced Transformation in a High-Strength Transformation-Induced Plasticity-Aided Dual-Phase Steel[J].Metallurgical and Materials Transactions,1992,23A(11):3085. |
| [6] | A. Zarei HANZAKI;P. D. HODGSON;S. YUE .Hot Deformation Characteristics of Si-Mn TRIP Steels with and without Nb Microalloy Additions[J].ISIJ International,1995(3):324-331. |
| [7] | Pereloma E V;Timokhina I B;Hodgson P D .Transformation Behaviour in Thermomechanically Processed C-Mn-Si TRIP Steels With and Without Nb[J].Materials Science and Engineering,1999,273:448. |
| [8] | Yue S;Dichiro A;Hanzaki A Z.Thermomechanical Processing Effects on C-Mn-Si TRIP Steels[J].JOM-Journal of the Minerals Metals and Materials Society,1997(49):59. |
| [9] | Haiwen LUO;Lie ZHAO;Suzelotte O. KRUIJVER .Effect of Intercritical Deformation on Bainite Formation in Al-containing TRIP Steel[J].ISIJ International,2003(8):1219-1227. |
| [10] | Basuki A;Aernoudt E .Influence of Rolling of TRIP Steel in the Intercritical Region on the Stability of Retained Austenite[J].Journal of Materials Processing Technology,1999,89-90:37. |
| [11] | Berrahmoune M R;Berveiller S;Inal K et al.Analysis of the Martensitic Transformation at Various Scales in TRIP Steel[J].Materials Science and Engineering,2004,378A:304. |
| [12] | Hashimoto S;Ikeda S;Sugimoto K;Miyake S .Effects of Nb and Mo addition to 0.2%C 1.5%Si 1.5%Mn steel on mechanical properties of hot rolled TRIP-aided steel sheets[J].ISIJ International,2004(9):1590-1598. |
| [13] | Papaefthymiou S;Bleck W;Kruijver S et al.Influence of Intercritical Deformation on Microstructure of TRIP Steels Containing Al[J].Materials Science and Technology,2004,20:201. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%