Enhanced Mechanical and Corrosion Performance by Forming Micro Shear Bands in Cold Forged Mg-Gd-Y-Zr Alloy
1
School of Materials Science and Engineering, Central South University, Changsha 410083, China
2
School of Metallurgy and Environment, Central South University, Changsha 410083, China
*
Author to whom correspondence should be addressed.
Materials 2020, 13(14), 3181; https://doi.org/10.3390/ma13143181
Received: 28 January 2020
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Revised: 19 February 2020
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Accepted: 24 February 2020
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Published: 16 July 2020
Forging at room temperature was applied on the per-extruded Mg-Gd-Y-Zr alloy to investigate the effect of cold forging on the microstructure, mechanical properties and corrosion resistance of the alloy. Abundant micro shear bands with misorientations of 2–15° were generated in the as forged alloys. Tremendous enhancement in tensile yield strength was achieved after forging. With a quantitative investigation, micro band boundaries were considered to provide a great contribution to the reinforcement. The ultrafine structure resulting from the formation of micro shear bands led to increased corrosion resistance of the alloy.
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Keywords:
magnesium alloy; micro shear bands; microstructure; mechanical properties; corrosion resistance
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MDPI and ACS Style
Yang, Z.; Liu, C.; Gao, Y.; Guo, X.; Wan, Y. Enhanced Mechanical and Corrosion Performance by Forming Micro Shear Bands in Cold Forged Mg-Gd-Y-Zr Alloy. Materials 2020, 13, 3181. https://doi.org/10.3390/ma13143181
AMA Style
Yang Z, Liu C, Gao Y, Guo X, Wan Y. Enhanced Mechanical and Corrosion Performance by Forming Micro Shear Bands in Cold Forged Mg-Gd-Y-Zr Alloy. Materials. 2020; 13(14):3181. https://doi.org/10.3390/ma13143181
Chicago/Turabian StyleYang, Zhengjiang, Chuming Liu, Yonghao Gao, Xueyi Guo, and Yingchun Wan. 2020. "Enhanced Mechanical and Corrosion Performance by Forming Micro Shear Bands in Cold Forged Mg-Gd-Y-Zr Alloy" Materials 13, no. 14: 3181. https://doi.org/10.3390/ma13143181
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