J. Mater. Sci. Technol. ›› 2017, Vol. 33 ›› Issue (4): 379-388.DOI: 10.1016/j.jmst.2016.07.014
• Orginal Article • Previous Articles Next Articles
Jiang Jufu1,*(), Atkinson H.V.2, Wang Ying3
Received:
2015-06-15
Revised:
2015-07-09
Accepted:
2015-07-16
Online:
2017-04-15
Published:
2017-05-24
Contact:
Jiang Jufu
Jiang Jufu, Atkinson H.V., Wang Ying. Microstructure and Mechanical Properties of 7005 Aluminum Alloy Components Formed by Thixoforming[J]. J. Mater. Sci. Technol., 2017, 33(4): 379-388.
Experiment number | Preheating temperature of the die (°C) | Isothermal temperature of billet (°C) | Load route |
---|---|---|---|
1 | 365 | 605 | Route 1 |
2 | 365 | 608 | Route 1 |
3 | 365 | 610 | Route 1 |
4 | 365 | 612 | Route 1 |
5 | 300 | 605 | Route 1 |
6 | 330 | 605 | Route 1 |
7 | 365 | 612 | Route 2 |
Table 1 Process parameters determined in thixoforming of 7005 aluminum alloy
Experiment number | Preheating temperature of the die (°C) | Isothermal temperature of billet (°C) | Load route |
---|---|---|---|
1 | 365 | 605 | Route 1 |
2 | 365 | 608 | Route 1 |
3 | 365 | 610 | Route 1 |
4 | 365 | 612 | Route 1 |
5 | 300 | 605 | Route 1 |
6 | 330 | 605 | Route 1 |
7 | 365 | 612 | Route 2 |
Fig. 4. Microstructure of semisolid billet of 7005 aluminum alloy obtained by recrystallization and partial remelting in: (a) region of transverse specimen 1, (b) region of longitudinal specimen 1, (c) region of transverse specimen 2, (d) region of longitudinal specimen 2, (e) region of transverse specimen 3, and (f) region of longitudinal specimen 3.
Fig. 5. Photographs of filling status of the thixoformed product obtained at: (a) 300 °C, (b) 330 °C, and (c) 365 °C (isothermal temperature of 605 °C, load route 1).
Fig. 6. Microstructure of the thixoformed conduct at the isothermal temperature of 605 °C and die preheating temperature of 365 °C under load route 1 in: (a) region of transverse specimen 1, (b) region of longitudinal specimen 1, (c) region of transverse specimen 2, (d) region of longitudinal specimen 2, (e) region of transverse specimen 3, and (f) region of longitudinal specimen 3.
Fig. 7. Schematic diagram of filling process during the thixoforming of 7005 aluminum alloy at: (a) initial stage, (b) middle stage 1, (c) middle stage 2, and (d) final stage.
Fig. 9. Microstructure evolution of the thixoformed product at isothermal temperatures: (a) 605 °C, (b) 608 °C, (c) 610 °C, and (d) 612 °C (die preheating temperature of 365 °C, load route 1).
Fig. 11. Mechanical properties of the thixoformed product under: (a) load route 1 and (b) load route 2 (isothermal temperature of 612 °C, die preheating temperature of 365 °C).
Fig. 12. X-ray radiographs of the thixoformed product obtained at isothermal temperature of 612 °C and die preheating temperature of 365 °C under load route 1 and load route 2: (a) front view of the thixoformed product 1 under load route 2, (b) right view of the thixoformed product 1 under load route 2, (c) front view of the thixoformed product 2 under load route 2, (d) right view of the thixoformed product 2 under load route 2, (e) front view of the thixoformed product 1 under load route 2, and (f) right view of the thixoformed product 4 under load route 1.
Fig. 13. SEM microstructures of the thixoformed product obtained at isothermal temperature of 612 °C and preheating temperature of 365 °C under load route 2: (a) thixoformed product 1 under load route 2, (b) thixoformed product 2 under load route 2.
Fig. 14. SEM microstructures of the thixoformed product 1 obtained at isothermal temperature of 612 °C and preheating temperature of 365 °C under load route 1: (a) region of transverse specimen 1, (b) region of longitudinal specimen 1, (c) region of transverse specimen 2, (d) region of longitudinal specimen 2, (e) region of transverse specimen 3 and (f) region of longitudinal specimen 3.
Fig. 15. Tensile fracture of the thixoformed product obtained at isothermal temperature of 612 °C and preheating temperature of 365 °C under load route 2: (a) thixoformed product 1 under load route 2, (b) thixoformed product 2 under load route 2 and (c) thixoformed product 1 under load route 1.
|
[1] | Xiong-jie Gu, Wei-li Cheng, Shi-ming Cheng, Yan-hui Liu, Zhi-feng Wang, Hui Yu, Ze-qin Cui, Li-fei Wang, Hong-xia Wang. Tailoring the microstructure and improving the discharge properties of dilute Mg-Sn-Mn-Ca alloy as anode for Mg-air battery through homogenization prior to extrusion [J]. J. Mater. Sci. Technol., 2021, 60(0): 77-89. |
[2] | Hui Jiang, Dongxu Qiao, Wenna Jiao, Kaiming Han, Yiping Lu, Peter K. Liaw. Tensile deformation behavior and mechanical properties of a bulk cast Al0.9CoFeNi2 eutectic high-entropy alloy [J]. J. Mater. Sci. Technol., 2021, 61(0): 119-124. |
[3] | Jincheng Wang, Yujing Liu, Chirag Dhirajlal Rabadia, Shun-Xing Liang, Timothy Barry Sercombe, Lai-Chang Zhang. Microstructural homogeneity and mechanical behavior of a selective laser melted Ti-35Nb alloy produced from an elemental powder mixture [J]. J. Mater. Sci. Technol., 2021, 61(0): 221-233. |
[4] | Qin Xu, Dezhi Chen, Chongyang Tan, Xiaoqin Bi, Qi Wang, Hongzhi Cui, Shuyan Zhang, Ruirun Chen. NbMoTiVSix refractory high entropy alloys strengthened by forming BCC phase and silicide eutectic structure [J]. J. Mater. Sci. Technol., 2021, 60(0): 1-7. |
[5] | K.J. Tan, X.G. Wang, J.J. Liang, J. Meng, Y.Z. Zhou, X.F. Sun. Effects of rejuvenation heat treatment on microstructure and creep property of a Ni-based single crystal superalloy [J]. J. Mater. Sci. Technol., 2021, 60(0): 206-215. |
[6] | Hui Xiao, Manping Cheng, Lijun Song. Direct fabrication of single-crystal-like structure using quasi-continuous-wave laser additive manufacturing [J]. J. Mater. Sci. Technol., 2021, 60(0): 216-221. |
[7] | Xing Zhou, Jingrui Deng, Changqing Fang, Wanqing Lei, Yonghua Song, Zisen Zhang, Zhigang Huang, Yan Li. Additive manufacturing of CNTs/PLA composites and the correlation between microstructure and functional properties [J]. J. Mater. Sci. Technol., 2021, 60(0): 27-34. |
[8] | Zijuan Xu, Zhongtao Li, Yang Tong, Weidong Zhang, Zhenggang Wu. Microstructural and mechanical behavior of a CoCrFeNiCu4 non-equiatomic high entropy alloy [J]. J. Mater. Sci. Technol., 2021, 60(0): 35-43. |
[9] | B.N. Du, Z.Y. Hu, L.Y. Sheng, D.K. Xu, Y.X. Qiao, B.J. Wang, J. Wang, Y.F. Zheng, T.F. Xi. Microstructural characteristics and mechanical properties of the hot extruded Mg-Zn-Y-Nd alloys [J]. J. Mater. Sci. Technol., 2021, 60(0): 44-55. |
[10] | Lin Yuan, Jiangtao Xiong, Yajie Du, Jin Ren, Junmiao Shi, Jinglong Li. Microstructure and mechanical properties in the TLP joint of FeCoNiTiAl and Inconel 718 alloys using BNi2 filler [J]. J. Mater. Sci. Technol., 2021, 61(0): 176-185. |
[11] | Yanxin Qiao, Daokui Xu, Shuo Wang, Yingjie Ma, Jian Chen, Yuxin Wang, Huiling Zhou. Effect of hydrogen charging on microstructural evolution and corrosion behavior of Ti-4Al-2V-1Mo-1Fe alloy [J]. J. Mater. Sci. Technol., 2021, 60(0): 168-176. |
[12] | Xiaoxiao Li, Meiqiong Ou, Min Wang, Long Zhang, Yingche Ma, Kui Liu. Effect of boron addition on the microstructure and mechanical properties of K4750 nickel-based superalloy [J]. J. Mater. Sci. Technol., 2021, 60(0): 177-185. |
[13] | Yunsheng Wu, Xuezhi Qin, Changshuai Wang, Lanzhang Zhou. Microstructural evolution and its influence on the impact toughness of GH984G alloy during long-term thermal exposure [J]. J. Mater. Sci. Technol., 2021, 60(0): 61-69. |
[14] | Xu-Ping Wu, Xue-Mei Luo, Hong-Lei Chen, Ji-Peng Zou, Guang-Ping Zhang. A unified model for determining fracture strain of metal films on flexible substrates [J]. J. Mater. Sci. Technol., 2020, 54(0): 87-94. |
[15] | Zhengliang Liu, Shenglong Zhu, Mingli Shen, Yixuan Jia, Wen Wang, Fuhui Wang. Microstructure and cavitation erosion behavior of sputtered NiCrAlTi coatings with and without N incorporations [J]. J. Mater. Sci. Technol., 2020, 54(0): 211-222. |
Viewed | ||||||
Full text |
|
|||||
Abstract |
|
|||||