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Review

Regulating Precipitates by Simple Cold Deformations to Strengthen Mg Alloys: A Review

1
School of Materials and Energy, Southwest University, Chongqing 400715, China
2
College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China
3
Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), College of Materials Science and Engineering, Northeastern University, Shenyang 110819, China
4
College of Materials Science and Engineering, Chongqing University of Technology, Chongqing 400054, China
5
State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an 710072, China
*
Authors to whom correspondence should be addressed.
Materials 2019, 12(16), 2507; https://doi.org/10.3390/ma12162507
Received: 25 June 2019 / Revised: 30 July 2019 / Accepted: 5 August 2019 / Published: 7 August 2019
(This article belongs to the Collection Alloy and Process Development of Light Metals)
Regulating precipitates is still an important issue in the development of high-strength Mg alloys, due to it determining the precipitation hardening effect. Cold deformation, as a simple and low-cost method, can remarkably influence the precipitate features. It is found that pre-cold deformation before aging can be utilized to enhance the precipitation hardening effect of Mg alloys. Moreover, post-deformation after aging could be an effective method to regulate precipitation orientation. In this review, recent research on the regulation of precipitation behavior by cold deformation in Mg-Al, Mg-Zn, and Mg-RE (RE: rare-earth elements) alloy systems was critically reviewed. The changes in precipitate features and mechanical properties of peak-aged Mg alloys via cold deformation were summarized. The corresponding strengthening mechanisms were also discussed. Finally, further research directions in this field were proposed. View Full-Text
Keywords: Mg alloys; precipitation; crystal defects; cold deformation; dislocations; twins; mechanical properties Mg alloys; precipitation; crystal defects; cold deformation; dislocations; twins; mechanical properties
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MDPI and ACS Style

Song, B.; She, J.; Guo, N.; Qiu, R.; Pan, H.; Chai, L.; Yang, C.; Guo, S.; Xin, R. Regulating Precipitates by Simple Cold Deformations to Strengthen Mg Alloys: A Review. Materials 2019, 12, 2507. https://doi.org/10.3390/ma12162507

AMA Style

Song B, She J, Guo N, Qiu R, Pan H, Chai L, Yang C, Guo S, Xin R. Regulating Precipitates by Simple Cold Deformations to Strengthen Mg Alloys: A Review. Materials. 2019; 12(16):2507. https://doi.org/10.3390/ma12162507

Chicago/Turabian Style

Song, Bo, Jia She, Ning Guo, Risheng Qiu, Hucheng Pan, Linjiang Chai, Changlin Yang, Shengfeng Guo, and Renlong Xin. 2019. "Regulating Precipitates by Simple Cold Deformations to Strengthen Mg Alloys: A Review" Materials 12, no. 16: 2507. https://doi.org/10.3390/ma12162507

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