ACTA AERONAUTICAET ASTRONAUTICA SINICA >
Simulation of Microstructure Evolution During the Whole Process of Radial-axial Rolling of TA15 Titanium Alloy Ring
Received date: 2014-01-02
Revised date: 2014-03-10
Online published: 2014-03-18
Supported by
National Natural Science Foundation of China (51175427, 51135007); Fund of the State Key Laboratory of Metal Extrusion and Forging Equipment Technology (China National Heavy Machinery Research Institute Co.,Ltd.) (2011MEFETKF_03); Open Fund of the Key Laboratory of Advanced Manufacturing Technology for Automobile Parts, Ministry of Education, Chongqing University of Technology; National Science and Technology Major Project (2010ZX04004-131-07); Open Fund of the State Key Laboratory of Materials Processing and Die & Mould Technology, Huazhong University of Science and Technology (P2014-05); 111 Project (B08040)
The complete process of the radial-axial rolling of a titanium alloy ring usually includes three operations, namely, the transferring of the heated ring blank from the furnace to the ring rolling mill, the rolling of the heated ring blank, and the cooling of the rolled ring. Each operation can influence strongly the microstructure of the final ring. Therefore, it is important to reveal the characteristics and laws of microstructure evolution of the ring during the whole process of the radial-axial ring rolling for controlling the microstructure and quality of the final ring. Aiming at the whole process of radial-axial rolling of the TA15 titanium alloy ring, the mechanisms and models of microstructure evolution in each operation are clarified first. Then, under ABAQUS environment, a coupled macro-micro and through-process finite element (FE) model of radial-axial ring rolling of TA15 titanium alloy is developed. Extensive simulation results show that: the volume fraction of primary alpha shows an obvious increase but the grain size increases slightly in the transferring operation of the heated ring blank; the grain size of primary α is refined but the volume fraction does not exhibit obvious changes during the rolling operation of the heated ring blank; and both the volume fraction and grain size of primary α increase distinctly in the cooling operation of the rolled ring.
ZHU Shuai , YANG He , GUO Lianggang , DI Weijia , FAN Yu . Simulation of Microstructure Evolution During the Whole Process of Radial-axial Rolling of TA15 Titanium Alloy Ring[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2014 , 35(11) : 3145 -3155 . DOI: 10.7527/S1000-6893.2014.0018
[1] Yang H, Wang M, Guo L G, et al. 3D coupled thermo-mechanical FE modeling of blank size effects on the uniformity of strain and temperature distributions during hot rolling of titanium alloy large rings[J]. Computational Materials Science, 2008, 44(2): 611-621.
[2] Liu D, Fu M J, Wan Z Y, et al. Rolling strategies in the rolling process of GH4169 alloy with rectangle cross-section ring[J]. Acta Aeronautica et Astronautica Sinica, 2007, 28(5): 1276-1280. (in Chinese) 刘东, 付明杰, 万自永, 等. GH4169合金矩形截面环轧制曲线的实验研究[J]. 航空学报, 2007, 28(5): 1276-1280.
[3] Sun Z C, Yang H, Ou X Z. Effects of process parameters on microstructural evolution during hot ring rolling of AISI 5140 steel[J]. Computational Materials Science, 2010, 49(1): 134-142.
[4] Qian D S, Pan Y. 3D coupled macro-microscopic finite element modelling and simulation for combined blank-forging and rolling process of alloy steel large ring[J]. Computational Materials Science, 2013, 70: 24-36.
[5] Guo L G, Pan X, Yang H, et al. Effects of rotational speed of driving roll on microstructure evolution during hot ring rolling of as-cast 42CrMo steel[J]. Heavy Machinery, 2012(3): 59-64. (in Chinese) 郭良刚, 潘霞, 杨合, 等. 驱动辊转速对铸态42CrMo钢环件热辗轧微观组织的影响规律[J]. 重型机械, 2012(3): 59-64.
[6] Zhang F, Li Y T, Qi H P, et al. Study on rule of microstructure evolution during hot ring rolling process of annular casting blank[J]. China Metal Forming Equipment & Manufacturing Technology, 2011(2): 96-99. (in Chinese) 张峰, 李永堂, 齐会萍, 等. 环形铸坯热辗扩成形微观组织演变规律研究[J]. 锻压装备与制造技术, 2011(2): 96-99.
[7] Wang M, Yang H, Zhang C, et al. Microstructure evolution modeling of titanium alloy large ring in hot ring rolling[J]. International Journal of Advanced Manufacturing Technology, 2013, 66(9-12): 1427-1437.
[8] Wang M, Yang H, Guo L G, et al. Simulation of microstructure evolution during hot ring rolling of large rings of titanium alloy based on 3D-FEM[J]. Journal of Plasticity Engineering, 2008, 15(6): 76-80. (in Chinese) 王敏, 杨合, 郭良刚, 等. 基于3D-FEM的大型钛环热辗扩成形微观组织演变仿真[J]. 塑性工程学报, 2008, 15(6): 76-80.
[9] Zhu S, Yang H, Guo L G, et al. Investigation of deformation degree and initial forming temperature dependences of microstructure in hot ring rolling of TA15 titanium alloy by multi-scale simulations[J]. Computational Materials Science, 2012, 65: 221-229.
[10] Semiatin S L, Knisley S L, Fagin P N, et al. Microstructure evolution during alpha-beta heat treatment of Ti-6Al-4V[J]. Metallurgical and Materials Transactions A, 2003, 34(10): 2377-2386.
[11] Fan X G. Study on microstructure evolution during isothermal local loading forming of large-scale integral complex component of titanium alloys[D]. Xi'an: Northwestern Polytechnical University, 2012. (in Chinese) 樊晓光. 钛合金复杂大件等温局部加载成形组织演变研究[D]. 西安: 西北工业大学, 2012.
[12] Zhu S, Yang H, Guo L G, et al. Effect of cooling rate on microstructure evolution during α/β heat treatment of TA15 titanium alloy[J]. Materials Characterization, 2012, 70: 101-110.
[13] Guo L G, Yang H, Jin J C. Design method of blank sizes for radial-axial ring rolling[J]. Chinese Journal of Mechanical Engineering, 2010, 46(24): 1-9. (in Chinese) 郭良刚, 杨合, 金坚诚. 环件径轴向轧制毛坯尺寸设计方法[J]. 机械工程学报, 2010, 46(24): 1-9.
[14] Wang M, Yang H, Sun Z C, et al. Analysis of mechanical and thermal behaviors in hot rolling of large rings of titanium alloy using 3D dynamic explicit FEM[J]. Journal of Materials Processing Technology, 2009, 209(7): 3384-3395.
[15] Guo L G, Yang H. Towards a steady forming condition for radial-axial ring rolling[J]. International Journal of Mechanical Sciences, 2011, 53(4): 286-299.
[16] Guo L G, Chen J H, Yang H, et al. Response rules of strain and temperature fields to roll sizes during hot rolling process of TC4 titanium alloy conical ring[J]. Acta Aeronautica et Astronautica Sinica, 2013, 34(6): 1463-1473. (in Chinese) 郭良刚, 陈建华, 杨合, 等. TC4钛合金锥形环热辗轧应变及温度场对轧辊尺寸的响应规律[J].航空学报, 2013, 34(6): 1463-1473.
/
| 〈 |
|
〉 |
CJA