Microstructure, Tensile Properties and Fracture Behavior of Squeeze-Cast Mg Alloy AZ91 with Thick Cross Section

2020 ◽  
Vol 29 (6) ◽  
pp. 4130-4141
Author(s):  
Yintian Fu ◽  
Yuxian Li ◽  
Anita Hu ◽  
Henry Hu ◽  
Xueyuan Nie
Keyword(s):  
Tensile Properties ◽  
Cross Section ◽  
Fracture Behavior ◽  
Mg Alloy ◽  
Squeeze Cast ◽  
Alloy Az91

Mechanical Properties and Fracture Behavior of Indirect Squeeze-Cast A354 Alloy Using Local Pressurization

2016 ◽  
Vol 850 ◽  
pp. 502-510
Author(s):  
Hai Jun Liu ◽  
Lie Jun Li ◽  
Jian Wei Niu ◽  
Ji Xiang Gao ◽  
Xue Wen Chen
Keyword(s):  
Mechanical Properties ◽  
Tensile Properties ◽  
Fracture Behavior ◽  
Eutectic Silicon ◽  
Solidification Rate ◽  
Fracture Morphology ◽  
Shrinkage Cavity ◽  
Squeeze Cast ◽  
Ductile Mode ◽  
Eutectic Si

The effect of local pressurization on mechanical properties and fracture behavior of indirect squeeze-cast A354 alloy has been investigated. As compared to conventional process, the porosity and shrinkage cavity for heavy sectioned squeeze castings were improved by the indirect squeeze casting, while its tensile properties were inferior to other parts of the casting. That is mainly due to that inhomogeneous eutectic Si particles within strip, angular and fragment shapes distribute in bulky α-Al cells, which is caused by slower solidification rate. After T6 treatment, the fragmentation and spheroidization of the eutectic silicon happened. Under this situation, the effect of fragmentation on α-Al matrix reduced. Tensile properties of the casting (both local pressurization part and non-local pressurization part) were enhanced greatly, by 36.8% and 25.4%, respectively. Fracture analysis results show that the type of fracture morphology is changed from mixed mode of brittle cleavage and ductile to ductile mode after T6-treatment.

scholarly journals Tensile Properties of Forged Direct-Squeeze-Cast Al-(6.0∼8.0 mass%)Si-(0.3∼0.52 mass%)Mg Alloy

2008 ◽  
Vol 49 (4) ◽  
pp. 737-745
Author(s):  
Teng-Shih Shih ◽  
Po-Chen Chen ◽  
Wei-Shian Tsai
Keyword(s):  
Tensile Properties ◽  
Mg Alloy ◽  
Squeeze Cast

scholarly journals Effect of Si and Zn on mechanical properties and microstructures of squeeze cast Al-5%Mg alloy.

1989 ◽  
Vol 39 (7) ◽  
pp. 494-500 ◽  
Author(s):  
Mitsuru ADACHI ◽  
Yoshiharu WAKU ◽  
Hideki IWAI ◽  
Akio OKAMOTO ◽  
Tadashi UEKI ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Mg Alloy ◽  
Squeeze Cast
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