pp 1–10 | Cite as

Improving Strength and Formability of Rolled AZ31 Sheet by Two-Step Twinning Deformation

  • Qingshan Yang
  • Bin JiangEmail author
  • Bo SongEmail author
  • Jianyue Zhang
  • Fusheng Pan
Emerging Mechanisms for Enhanced Plasticity in Magnesium


The present work aims to improve strength and stretch formability of rolled AZ31 sheet by two-step twinning deformation, i.e., compression (8%) along the rolling direction (RD) and subsequent tension (5%) along RD. A recrystallization annealing was carried out between two twinning deformations to avoid detwinning. It shows that two-step twinning deformation can form strong c-axis//RD texture and generate profuse crossed twin lamellae in each grain. The former can generate a refinement hardening effect to enhance the strength and the latter can contribute to a high stretch formability at room temperature.



This project was financially supported by the National Natural Science Foundation of China (51601154, 51701033), the Fundamental Research Funds for the Central Universities (XDJK2019B003), Chongqing Science and Technology Commission (cstc2018jcyjAX0022), and Chongqing Municipal Education Commission (KJQN201901504), National Natural Science Foundation of China (51531002, U1764253).


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Copyright information

© The Minerals, Metals & Materials Society 2019

Authors and Affiliations

  1. 1.School of Metallurgy and Materials EngineeringChongqing University of Science and TechnologyChongqingChina
  2. 2.National Engineering Research Center for Magnesium AlloysChongqing UniversityChongqingChina
  3. 3.School of Materials and EnergySouthwest UniversityChongqingChina
  4. 4.School of Engineering TechnologyPurdue UniversityWest LafayetteUSA

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