Microstructural and mechanical response of ZK60 magnesium alloy subjected to radial forging

2021 ◽  
Vol 83 ◽  
pp. 228-238
Author(s):  
Jingfeng Zou ◽  
Lifeng Ma ◽  
Weitao Jia ◽  
Qichi Le ◽  
Gaowu Qin ◽  
...  
Metals ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 606
Author(s):  
César Palacios-Trujillo ◽  
José Victoria-Hernández ◽  
David Hernández-Silva ◽  
Dietmar Letzig ◽  
Marco A. García-Bernal

Magnesium alloys usually exhibit excellent superplasticity at high temperature. However, many Mg alloys have poor formation ability near room temperature. Therefore, preparation of Mg alloys with suitable microstructures to show low or intermediate temperature superplasticity is an important goal. In this work, the superplastic behavior at intermediate temperatures of a commercial ZK60 magnesium alloy processed by indirect extrusion was investigated. After extrusion, the alloy showed a refined and homogeneous microstructure with an average grain size of 4 ± 2 μm. Overall texture measurement indicated that the alloy showed a strong prismatic texture with the highest intensity oriented to pole ⟨101¯0⟩. A texture component ⟨1¯21¯1⟩ parallel to the extrusion direction was found; this type of texture is commonly observed in Mg alloys with rare earth additions. Tensile tests were performed at temperatures of 150, 200, and 250 °C at three strain rates of 10−2, 10−3, and 10−4 s−1. A very high ductility was found at 250 °C and 10−4 s−1, resulting in an elongation to failure of 464%. Based on calculations of the activation energy and on interpretation of the deformation mechanism map for magnesium alloys, it was concluded that grain boundary sliding (GBS) is the dominant deformation mechanism.


2016 ◽  
Vol 677 ◽  
pp. 125-132 ◽  
Author(s):  
Yuchun Yuan ◽  
Aibin Ma ◽  
Xiaofan Gou ◽  
Jinghua Jiang ◽  
Godfred Arhin ◽  
...  

2021 ◽  
pp. 130283
Author(s):  
Jinge Liu ◽  
Bangzhao Yin ◽  
Zhaorui Sun ◽  
Peng Wen ◽  
Yufeng Zheng ◽  
...  

2007 ◽  
Vol 48 (12) ◽  
pp. 3140-3148 ◽  
Author(s):  
Sergey Mironov ◽  
Yoshinobu Motohashi ◽  
Tsutomu Ito ◽  
Alexandre Goloborodko ◽  
Kunio Funami ◽  
...  

2013 ◽  
Vol 19 (4) ◽  
pp. 651-665 ◽  
Author(s):  
Hui Yu ◽  
Huashun Yu ◽  
Guanghui Min ◽  
Sung Soo Park ◽  
Bong Sun You ◽  
...  

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