用金相显微镜、扫描电镜、透射电镜、X射线衍射仪、同步热分析仪研究了冷拉拔形变对珠光体钢丝奥氏体化热处理过程和组织的影响。经过冷拉拔剧烈塑性变形后，珠光体组织呈纤维状，其片层沿拉拔轴向排列，厚度剧烈减薄，铁素体<110>丝织构强度达到饱和。经剧烈塑性变形的珠光体在奥氏体化转变时，奥氏体形核更早、更密集，且沿轴向生长；在完成等温转变后，其原奥氏体晶粒、珠光体团尺寸均明显细化，其铁素体<110>丝织构一定程度遗传到了相变后的组织中，但沿拉拔轴向排列的片层形貌特点并未得到遗传。
With the help of metallographic microscope,scanning electron microscope,transmission electron micro-scope,X-ray diffractometer and synchronous thermal analyzer technique,the effect of cold drawing deformation on the austenitization process of pearlitic wire and its structure was investigated. After the severe plastic deformation of cold drawing process,the pearlitic turned to the fibrous form. The pearlitic lamellae were arranged along the drawing axial di-rection with severely reduced thickness and the intensity of ferrite<110>fiber texture reached saturation after high strain deformation. During the austenitization process,the cold drawn pearlite transformed into austenite faster than the no de-formed pearlite,and the austenite grew along the cold drawing axial direction with higher density. After isothermal trans-formation treatment,smaller original austenite crystals and pearlite colonies could be obtained from the cold drawn pearlite wire. Furthermore,the ferrite<110>fiber texture was partly inherited to the transformed phase and the morpho-logical feature of arrangement along the layer direction was not inherited.
参考文献
| [1] | Valiev RZ.;Alexandrov IV.;Islamgaliev RK..Bulk nanostructured materials from severe plastic deformation [Review][J].Progress in materials science,20002(2):103-189. |
| [2] | 倪颂;廖晓舟;朱运田.剧烈塑性变形对块体纳米金属材料结构和力学性能的影响[J].金属学报,2014(2):156-168. |
| [3] | Ruslan Z. Valiev;Yuri Estrin;Zenji Horita.Producing Bulk Ultrafine-Grained Materials by Severe Plastic Deformation[J].JOM,20064(4):33-39. |
| [4] | Y.J. Li;P. Choi;C. Borchers.Atomic-scale mechanisms of deformation-induced cementite decomposition in pearlite[J].Acta materialia,201110(10):3965-3977. |
| [5] | Y.J. Li;P. Choi;S. Goto.Evolution of strength and microstructure during annealing of heavily cold-drawn 6.3 GPa hypereutectoid pearlitic steel wire[J].Acta materialia,20129(9):4005-4016. |
| [6] | Shabashov VA.;Korshunov LG.;Mukoseev AG.;Sagaradze VV.;Makarov AV. Pilyugin VP.;Novikov SI.;Vildanova NF..Deformation-induced phase transitions in a high-carbon steel[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,20031/2(1/2):196-207. |
| [7] | L. Storojeva;D. Ponge;R. Kaspar.Development of microstructure and texture of medium carbon steel during heavy warm deformation[J].Acta materialia,20048(8):2209-2220. |
| [8] | S.L. Zhang;X.J. Sun;H. Dong.Effect of deformation on the evolution of spheroidization for the ultra high carbon steel[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,20061/2(1/2):324-332. |
| [9] | 周立初;赵宇飞;胡显军;王雷;李凡;方峰;蒋建清.奥氏体化热处理对冷拉拔珠光体钢丝织构再分布的影响[J].材料研究学报,2014(8):615-620. |
| [10] | 杨泽南;杨志刚;夏苑;张弛.层片状珠光体组织奥氏体化速率的计算[J].金属学报,2013(7):890-896. |
| [11] | Chul Min Bae;Won Long Nam;Chong Soo Lee.Effect of interlamellar spacing on the delamination of pearlitic steel wires[J].Scripta materialia,19965(5):641-646. |
| [12] | Feng Fang;Yufei Zhao;Peipei Liu;Lichu Zhou;Xian-jun Hu;Xuefeng Zhou;Zong-han Xie.Deformation of cementite in cold drawn pearlitic steel wire[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2014:11-15. |
| [13] | Xiaodan Zhang;Andrew Godfrey;Niels Hansen.Evolution of cementite morphology in pearlitic steel wire during wet wire drawing[J].Materials Characterization,20101(1):65-72. |
| [14] | 胡显军;赵宇飞;王雷;麻晗;方峰.合金元素钒对高碳钢丝组织与性能的影响[J].钢铁,2014(12):71-75. |
| [15] | 姚旭升;刘沿东;左良.冷拔珠光体钢丝帘线中织构演变的定量研究[J].钢铁,2008(3):65-67,71. |
| [16] | Xianjun Hu;Zonghan Xie;Feng Fang;Yufei Zhao;Lichu Zhou;Jianqing Jiang.Texture inheritance of cold drawn pearlite steel wires after austenitization[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2014:505-510. |
| [17] | 李翼;杨忠民.Ⅴ对高碳钢连续冷却时组织转变的影响[J].金属学报,2010(12):1501-1510. |
| [18] | Michael Zelin.Microstructure evolution in pearlitic steels during wire drawing[J].Acta materialia,200217(17):4431-4447. |
| [19] | 肖强;王伯健;刘世峰;曹猛;葛潇琛.剧烈塑性变形珠光体钢丝退火组织与性能[J].金属热处理,2013(6):6-9. |
| [20] | 郭正洪.钢中珠光体相变机制的研究进展[J].材料热处理学报,2003(03):1-7. |
| [21] | 黄青松;李龙飞;杨王玥;孙祖庆.共析钢的过冷奥氏体动态相变和组织超细化[J].金属学报,2007(7):724-730. |
| [22] | 胡显军 .珠光体钢丝微结构研究及超高强度PC钢绞线用盘条的研制[D].东南大学,2013. |
| [23] | 王燕;方峰;王雷;蒋建清;杨恒.冷拔珠光体钢丝渗碳体微观结构[J].材料热处理学报,2010(5):92-95. |
| [24] | Fang, F.;Hu, X.-J.;Chen, S.-H.;Xie, Z.-H.;Jiang, J.-Q..Revealing microstructural and mechanical characteristics of cold-drawn pearlitic steel wires undergoing simulated galvanization treatment[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2012:51-54. |
| [25] | I. Lischewski;G. Gottstein.Nucleation and variant selection during the α-γ-α phase transformation in microalloyed steel[J].Acta materialia,20114(4):1530-1541. |
| [26] | Fang, Feng;Zhou, Lichu;Hu, Xianjun;Zhou, Xuefeng;Tu, Yiyou;Xie, Zonghan;Jiang, Jianqing.Microstructure and mechanical properties of cold-drawn pearlitic wires affect by inherited texture[J].Materials & design,2015Aug.(Aug.):60-67. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%