J. Mater. Sci. Technol. ›› 2016, Vol. 32 ›› Issue (5): 477-484.DOI: 10.1016/j.jmst.2016.01.017
• Orginal Article • Previous Articles Next Articles
Yuanke Mo, Zhihao Zhang, Hongjiang Pan, Jianxin Xie
Received:
2015-10-30
Online:
2016-05-10
Contact:
* Ph.D.; Tel.: +86 10 62332253; Fax: +86 10 62332253.
Supported by:
This work was financially supported by the National Basic Research Program of China (No. 2011CB606300) and the National High-Tech Research and Development Program of China (No. 2012AA03A505). The authors thank Dr. Y.B. Jiang for his helpful discussions.
Yuanke Mo, Zhihao Zhang, Hongjiang Pan, Jianxin Xie. Improved Plasticity and Cold-rolling Workability of Fe-6.5wt%Si Alloy by Warm-rolling with Gradually Decreasing Temperature[J]. J. Mater. Sci. Technol., 2016, 32(5): 477-484.
C with a total reduction about 93%.In this study, the idea of warm-rolling with gradually decreasing temperature is proposed, i.e., the warm-rolling at relatively high temperature is firstly used in order to achieve the large warm-rolling deformation, and then the warm-rolling temperature is decreased gradually with the increase of rolling pass in order to decrease the order degree and improve the subsequent cold-rolling workability. The effects of the warm-rolling process (one process of warm-rolling with constant temperature and two processes of warm-rolling with gradually decreasing temperature) on the microstructure, ordering, mechanical properties and subsequent cold-rolling workability of Fe-6.5wt%Si alloy were studied.
Three point bending properties of the Fe-6.5wt%Si alloy samples warm-rolled by the three processes: (a) load-deflection curves, (b) fracture deflections.
Macro-bending fracture morphologies of the Fe-6.5wt%Si alloy samples warm-rolled by the three processes (F is the bending load): (a) by process (1), (b) by process (2), (c) by process (3).
Bending fracture morphologies of the Fe-6.5wt%Si alloy samples warm-rolled by the three processes: (a) by process (1), (b) by process (2), (c) by process (3).
Samples of warm-rolled by process (1) after subsequent single pass cold-rolling with various reductions: (a) photos of the cold-rolled samples, (b) magnified image of the area with solid-line box in (a).
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