Developing Novel Multiscale Hetero-Structure in Mg-Alloy for High Strength-Ductility Synergy by Short-Routed Rolling

2022 ◽  
Author(s):  
Tong Wang ◽  
Min Zha ◽  
Yi-peng Gao ◽  
Si-Qing Wang ◽  
Hai-Long Jia ◽  
...  
Keyword(s):  
High Strength ◽  
Mg Alloy ◽  
Hetero Structure

scholarly journals Effects of Sc and Zr on the Texture and Mechanical Anisotropy of High Strength Al–Zn–Mg Alloy Sheets

2016 ◽  
Vol 48 (1) ◽  
pp. 39-48 ◽  
Author(s):  
Y. Deng ◽  
Z. M. Yin ◽  
G. F. Xu ◽  
Y. J. Wang ◽  
L. Y. Lu ◽  
...  
Keyword(s):  
High Strength ◽  
Mechanical Anisotropy ◽  
Mg Alloy

Improving the Mechanical Properties of AZ31 Mg Alloy by High Ratio Extrusion

2006 ◽  
Vol 503-504 ◽  
pp. 865-870 ◽  
Author(s):  
Yongjun Chen ◽  
Qu Dong Wang ◽  
Jianguo Peng ◽  
Chun Quan Zhai
Keyword(s):  
Mechanical Properties ◽  
High Strength ◽  
High Ratio ◽  
Extrusion Ratio ◽  
Mg Alloy ◽  
Fine Grained ◽  
Az31 Mg Alloy ◽  
Industry Applications ◽  
One Step ◽  
The One

Experiments were conducted both to evaluate the potential for grain refinement, the subsequent mechanical properties at room temperature in samples of AZ31 Mg alloy and also to investigate the relationship between one-step and two-step high ratio extrusion (HRE). The one-step HRE was undertaken using a high extrusion ratio of 70:1 at 250, 300 and 350°C. And the two-step HRE was conducted with an extrusion ratio of 7 for the first step at 250, 300 and 350°C, followed by a second-step extrusion with an extrusion ratio of 10 at 250, 300 and 350°C. The initial grain size in the AZ31 ingot was 100μm and that after one-step HRE became similar to 5μm, after two-step HRE at 250, 300 and 350°C were 2, 4, 7μm, respectively, resulting in superior mechanical properties at ambient temperature. The microstructure of two-step HRE was finer and uniformer than that of one-step HRE and the strength of one-step and two-step HRE were similar, moreover, the elongation of one-step HRE was improved markedly than that of two-step HRE. Dynamic recrystallization and adjacent grain broking during HRE is introduced to explain the effects of one-step and two-step HRE on the microstructure and mechanical properties of AZ31 Mg alloy. The current results imply that the simple HRE method might be a feasible processing method for industry applications, and the multiply steps extrusion are effective to fabricate high strength of fine grained hcp metals.

Comparative Study on TiH2 and CaCO3 for Fabrication of Mg Alloy Foams

2008 ◽  
Vol 569 ◽  
pp. 273-276 ◽  
Author(s):  
Chang Hwan Seo ◽  
M. J. Jeong ◽  
In Young Jung ◽  
Bo Young Hur
Keyword(s):  
Metal Foam ◽  
High Strength ◽  
Cost Effective ◽  
Decomposition Temperature ◽  
Mg Alloy ◽  
New Materials ◽  
Alloying Element ◽  
Blowing Agent ◽  
Economic View ◽  
Cost Effective Method

Aluminum alloy foams, new materials belonging to a special class of porous materials, have been prepared using melt foaming method. Silicon was chosen alloying element due to its low density, high strength, effective casting and reduced shrinkage. Melt foaming method is cost-effective method to fabricate metal foam. Usually, TiH2 is applied to blowing agent, but its cost is high. CaCO3 is one of candidates to substitute TiH2 in the economic view-point. For the comparison of formability, Mg alloy foams were prepared by TiH2 and CaCO3. However, the decomposition temperature of CaCO3 is higher than that of TiH2. This paper will be discussed on the possible usage of CaCO3 in the Al melt.

Structure and properties during aging of an ultra-high strength Al-Cu-Li-Ag-Mg alloy

1990 ◽  
Vol 24 (1) ◽  
pp. 79-84 ◽  
Author(s):  
Frank W. Gayle ◽  
Frank H. Heubaum ◽  
Joseph R. Pickens
Keyword(s):  
High Strength ◽  
Mg Alloy ◽  
Structure And Properties

Fabrication and heat treatment of high strength Al-Cu-Mg alloy processed using selective laser melting

2016 ◽  
Author(s):  
Hu Zhang ◽  
Haihong Zhu ◽  
Xiaojia Nie ◽  
Ting Qi ◽  
Zhiheng Hu ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Selective Laser Melting ◽  
High Strength ◽  
Mg Alloy ◽  
Laser Melting

Al–Mg alloy engineered with bimodal grain size for high strength and increased ductility

2003 ◽  
Vol 49 (4) ◽  
pp. 297-302 ◽  
Author(s):  
David Witkin ◽  
Z. Lee ◽  
R. Rodriguez ◽  
S. Nutt ◽  
E. Lavernia
Keyword(s):  
Grain Size ◽  
High Strength ◽  
Mg Alloy ◽  
Bimodal Grain Size
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