Microstructural evolution of Al–Zn–Mg–Cu–(Sc) alloy during hot extrusion and heat treatments

2004 ◽  
Vol 155-156 ◽  
pp. 1330-1336 ◽  
Author(s):  
Dong-Woo Suh ◽  
Sang-Yong Lee ◽  
Kyong-Hwan Lee ◽  
Su-Keun Lim ◽  
Kyu Hwan Oh
Keyword(s):  
Microstructural Evolution ◽  
Hot Extrusion ◽  
Heat Treatments

Effects of hot extrusion on microstructural evolution in spray formed superalloy GH738

2014 ◽  
Vol 18 (sup4) ◽  
pp. S4-347-S4-351
Author(s):  
Y. Wang ◽  
W.-Y. Xu ◽  
Z. Li ◽  
G.-Q. Zhang
Keyword(s):  
Microstructural Evolution ◽  
Hot Extrusion

scholarly journals Microstructural evolution upon heat treatments and its effect on corrosion in Al-Zn-Mg alloys containing Sc and Zr

2020 ◽  
Vol 9 (3) ◽  
pp. 5077-5089 ◽  
Author(s):  
Kaixian Wang ◽  
Dengfeng Yin ◽  
Ying-Chao Zhao ◽  
Andrej Atrens ◽  
Ming-Chun Zhao
Keyword(s):  
Microstructural Evolution ◽  
Heat Treatments ◽  
Mg Alloys

Microstructural Evolution and Mechanical Properties of AZ91 and SiCp/AZ91 Magnesium Alloys upon Rapid Solidification/Powder Metallurgy Followed by Hot Extrusion

2010 ◽  
Vol 146-147 ◽  
pp. 734-737
Author(s):  
Hui Yu ◽  
Hua Shun Yu ◽  
Zhen Ya Zhang ◽  
Guang Hui Min ◽  
Cheng Chen
Keyword(s):  
Mechanical Properties ◽  
Powder Metallurgy ◽  
Magnesium Alloys ◽  
Rapid Solidification ◽  
Microstructural Evolution ◽  
Hot Extrusion ◽  
Interface Debonding ◽  
Porosity Level ◽  
Az91 Magnesium ◽  
Sic Particulates

In this study, AZ91 and SiC particulates reinforced AZ91 (SiCp/AZ91) magnesium alloys were successfully fabricated using rapid solidification/powder metallurgy technique followed by hot extrusion. Microstructural evolution and mechanical properties of the monolithic AZ91 and SiCp/AZ91 magnesium alloys were evaluated. SiC particulates were well distributed with only few agglomerated particles. The porosity level and microhardness increased as SiCp content increased because the increased surface area of SiCp, harder ceramic phases and SiCp acted obstacles to the motion of dislocations. In addition, an increase in particulate reinforcement content was observed to decrease mechanical properties of the composite compared with the unreinforced counterpart due to increasing agglomerating regions and porosity, brittle interface debonding between matrix and SiCp.

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