J. Mater. Sci. Technol. ›› 2018, Vol. 34 ›› Issue (10): 1747-1755.DOI: 10.1016/j.jmst.2018.03.002
• Orginal Article • Previous Articles Next Articles
Jeong Hun Leea, Jong Un Leeb, Sang-Hoon Kimb, Seok Weon Songc, Chong Soo Leed, Sung Hyuk Parkb()
Received:
2017-12-11
Revised:
2018-01-15
Accepted:
2018-01-31
Online:
2018-10-05
Published:
2018-11-01
Jeong Hun Lee, Jong Un Lee, Sang-Hoon Kim, Seok Weon Song, Chong Soo Lee, Sung Hyuk Park. Dynamic recrystallization behavior and microstructural evolution of Mg alloy AZ31 through high-speed rolling[J]. J. Mater. Sci. Technol., 2018, 34(10): 1747-1755.
Rolling reduction | Processing parameters | Microstructural characteristics | |||||
---|---|---|---|---|---|---|---|
Strain | Strain rate (s-1) | fDRX (%) | davr (μm) | dDRX (μm) | dunDRX (μm) | Imax | |
20% | 0.22 | 91 | 16.1 | 20.9 (14.2) | 5.0 (2.4) | 23.9 (13.5) | 14.0 |
40% | 0.51 | 128 | 50.2 | 11.6 (12.9) | 4.3 (2.1) | 18.9 (14.9) | 13.3 |
60% | 0.92 | 157 | 63.8 | 6.7 (6.4) | 3.9 (2.0) | 11.4 (8.3) | 12.1 |
80% | 1.61 | 181 | 95.2 | 3.4 (1.5) | 3.3 (1.3) | 5.0 (2.1) | 11.3 |
Table 1 Process parameters of high-speed rolling and microstructural characteristics of high-speed-rolled (HSRed) samples with different reductions.
Rolling reduction | Processing parameters | Microstructural characteristics | |||||
---|---|---|---|---|---|---|---|
Strain | Strain rate (s-1) | fDRX (%) | davr (μm) | dDRX (μm) | dunDRX (μm) | Imax | |
20% | 0.22 | 91 | 16.1 | 20.9 (14.2) | 5.0 (2.4) | 23.9 (13.5) | 14.0 |
40% | 0.51 | 128 | 50.2 | 11.6 (12.9) | 4.3 (2.1) | 18.9 (14.9) | 13.3 |
60% | 0.92 | 157 | 63.8 | 6.7 (6.4) | 3.9 (2.0) | 11.4 (8.3) | 12.1 |
80% | 1.61 | 181 | 95.2 | 3.4 (1.5) | 3.3 (1.3) | 5.0 (2.1) | 11.3 |
Fig. 2. Optical micrographs on (a-d) RD-ND and (e-h) RD-TD planes of HSRed samples with rolling reductions of (a, e) 20%, (b, f) 40%, (c, g) 60%, and (d, h) 80%.
Fig. 4. (a) Grain orientation spread and (b) inverse pole figure maps showing twinning-induced DRXed grains of 20% HSRed sample. (c) (0002) Pole figure showing crystallographic orientations of twinning-induced DRXed grains (1-5) in (a). The numerals in (b) indicate the misorientation angle at the grain boundaries.
Fig. 5. Misorientation angle map showing high-angle grain boundaries and various twin boundaries of HSRed samples with rolling reductions of (a) 20%, (b) 40%, (c) 60%, and (d) 80%.
Fig. 6. Inverse pole figure maps of (a-d) DRXed and (e-h) unDRXed regions of HSRed samples with rolling reductions of (a, e) 20%, (b, f) 40%, (c, g) 60%, and (d, h) 80%. fDRX and funDRX denote the area fractions of DRXed and unDRXed regions, respectively.
Fig. 8. Kernel average misorientation (KAM) maps and KAM distributions of HSRed samples with rolling reductions of (a) 20%, (b) 40%, (c) 60%, and (d) 80%.
|
[1] | 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. |
[2] | Qianqian Jin, Xiaohong Shao, Shijian Zheng, Yangtao Zhou, Bo Zhang, Xiuliang Ma. Interfacial dislocations dominated lateral growth of long-period stacking ordered phase in Mg alloys [J]. J. Mater. Sci. Technol., 2021, 61(0): 114-118. |
[3] | 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. |
[4] | 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. |
[5] | 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. |
[6] | 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. |
[7] | 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. |
[8] | 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. |
[9] | 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. |
[10] | 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. |
[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] | 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. |
[13] | Qiyu Liao, Yanchao Jiang, Qichi Le, Xingrui Chen, Chunlong Cheng, Ke Hu, Dandan Li. Hot deformation behavior and processing map development of AZ110 alloy with and without addition of La-rich Mish Metal [J]. J. Mater. Sci. Technol., 2021, 61(0): 1-15. |
[14] | 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. |
[15] | Liying Zhou, Wenxiong Chen, Shaobo Feng, Mingyue Sun, Bin Xu, Dianzhong Li. Dynamic recrystallization behavior and interfacial bonding mechanism of 14Cr ferrite steel during hot deformation bonding [J]. J. Mater. Sci. Technol., 2020, 43(0): 92-103. |
Viewed | ||||||
Full text |
|
|||||
Abstract |
|
|||||