Journal Article10.1016/J.ACTAMAT.2019.04.046
Dynamic precipitation and recrystallization in Mg-9wt.%Al during equal-channel angular extrusion: A comparative study to conventional aging
Xiaolong Ma,Suhas Eswarappa Prameela,Peng Yi,Matthew Fernandez,Nicholas M. Krywopusk,Laszlo J. Kecskes,Tomoko Sano,Michael L. Falk,Timothy P. Weihs +8 more
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TL;DR: In this paper, the authors investigated dynamic precipitation and recrystallization in a coarse-grained, fully solutionized Mg-9wt.%Al alloy following low-temperature Equal Channel Angular Extrusion (ECAE) using electron microscopy, theoretical calculations, and mechanical property evaluations.
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About: This article is published in Acta Materialia. The article was published on 15 Jun 2019. The article focuses on the topics: Recrystallization (metallurgy) & Equal channel angular extrusion.
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Citations
Microstructure and Properties of AZ61 Ultra-Fine Grained Magnesium Alloy Prepared by Mechanical Milling and Powder Metallurgy Processing
Zhu Yunpeng,Qin Jiayu,Wang Jinhui,Ma Hongbin,Jin Peipeng,Li Peijie +5 more
TL;DR: Mechanical milling and powder metallurgy processing of AZ61 magnesium alloy resulted in ultra-fine grain size (0.68 μm), superior tensile properties (yield strength: 393.1 MPa, tensile strength: 431.9 MPa), and enhanced grain refinement and Orowan strengthening mechanisms.
Hot Workability and Microstructure Evolution of Homogenized 2050 Al-Cu-Li Alloy during Hot Deformation
Zhi-yong Sheng,Yuanchun Huang,Yongxing Zhao,Rong Fu,Xucheng Wang,Fan Xi,Fan Wu +6 more
TL;DR: Hot compression tests on homogenized 2050 Al-Cu-Li alloys revealed optimal processing regions at 430-500°C and 0.1-0.001 s^-1, dominated by dynamic recovery and recrystallization, with DDRX and CDRX mechanisms, and unfavorable regions due to flow instability and micro-defects.
Precipitation in nanostructured alloys: A brief review
Kaka Ma,Yufeng Zheng,Yufeng Zheng,Sriswaroop Dasari,Dalong Zhang,Hamish L. Fraser,Rajarshi Banerjee +6 more
TL;DR: A review on the scientific discovery of precipitation in Nanostructured (NS) or ultrafine grain (UFG) structured alloys can be found in this article, including the formation mechanism and growth of precipitates, the interplay between precipitates and solid solutes, dislocations or grain boundaries, as well as the consequent mechanical behavior.
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Principles of equal-channel angular pressing as a processing tool for grain refinement
TL;DR: In this article, a review examines recent developments related to the use of ECAP for grain refinement including modifying conventional ECAP to increase the process efficiency and techniques for up-scaling the procedure and for the processing of hard-to-deform materials.
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