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Materials 2016, 9(6), 433; doi:10.3390/ma9060433

Effect of Rolling Route on Microstructure and Tensile Properties of Twin-Roll Casting AZ31 Mg Alloy Sheets

1
Key Laboratory of Automobile Materials of Ministry of Education & School of Materials Science and Engineering, Nanling Campus, Jilin University, No. 5988 Renmin Street, Changchun 130025, China
2
Key Laboratory of Bionic Engineering (Ministry of Education), Jilin University, Changchun 130025, China
*
Authors to whom correspondence should be addressed.
Academic Editor: Richard Thackray
Received: 6 April 2016 / Revised: 18 May 2016 / Accepted: 24 May 2016 / Published: 1 June 2016
(This article belongs to the Section Manufacturing Processes and Systems)
View Full-Text   |   Download PDF [4606 KB, uploaded 1 June 2016]   |  

Abstract

Twin-roll casting AZ31 Mg alloy sheets have been fabricated by normal unidirectional-rolling, head-to-tail rolling, and clock-rolling, respectively. It has been demonstrated that head-to-tail rolling is the most effective to refine the microstructure and weaken the basal texture among the three rolling routes. Excellent integrated tensile properties can be obtained by the head-to-tail rolling. The yield strength, ultimate tensile strength, and plastic elongation are 196 MPa, 301 MPa, and 28.9%, respectively. The strength can benefit from the fine grains (average value of 4.0 μm) of the AZ31 alloy processed by the head-to-tail rolling route, while the excellent plastic elongation is achieved owing to the weakened basal texture besides the fine grains. Results obtained here can be used as a basis for further study of some simple rolling methods, which is critical to the development of Mg alloys with high strength and plasticity. View Full-Text
Keywords: magnesium alloy; texture; rolling route; mechanical properties magnesium alloy; texture; rolling route; mechanical properties
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Luo, D.; Pan, Y.; Wang, H.-Y.; Zhao, L.-G.; Liu, G.-J.; Liu, Y.; Jiang, Q.-C. Effect of Rolling Route on Microstructure and Tensile Properties of Twin-Roll Casting AZ31 Mg Alloy Sheets. Materials 2016, 9, 433.

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