Microstructural evolution and mechanical properties of semisolid stir welded zinc AG40A die cast alloy

2009 ◽  
Vol 209 (8) ◽  
pp. 4112-4121 ◽  
Author(s):  
A. Narimannezhad ◽  
H. Aashuri ◽  
A.H. Kokabi ◽  
A. Khosravani
Keyword(s):  
Mechanical Properties ◽  
Microstructural Evolution ◽  
Cast Alloy ◽  
Die Cast

Selective laser melting of aluminum die-cast alloy—Correlations between process parameters, solidification conditions, and resulting mechanical properties

2015 ◽  
Vol 27 (S2) ◽  
pp. S29205 ◽  
Author(s):  
D. Buchbinder ◽  
W. Meiners ◽  
K. Wissenbach ◽  
R. Poprawe
Keyword(s):  
Mechanical Properties ◽  
Selective Laser Melting ◽  
Process Parameters ◽  
Cast Alloy ◽  
Laser Melting ◽  
Die Cast

Microstructure evolution and enhanced mechanical properties of eutectic Al–Si die cast alloy by combined alloying Mg and La

2016 ◽  
Vol 90 ◽  
pp. 820-828 ◽  
Author(s):  
Diaofeng Li ◽  
Chunxiang Cui ◽  
Xin Wang ◽  
Qingzhou Wang ◽  
Cheng Chen ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Microstructure Evolution ◽  
Cast Alloy ◽  
Die Cast

Mechanical Properties of Twin Roll Cast AZ91 Magnesium Alloy at Room Temperature

2007 ◽  
Vol 26-28 ◽  
pp. 145-148 ◽  
Author(s):  
Shu Hei Uchida ◽  
Ippei Takeuchi ◽  
Gentaro Gonda ◽  
Kinji Hirai ◽  
Tokuteru Uesugi ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Magnesium Alloy ◽  
Room Temperature ◽  
Cast Alloy ◽  
Casting Process ◽  
Az91 Magnesium Alloy ◽  
Die Cast ◽  
Az91 Magnesium ◽  
Twin Roll Cast ◽  
Twin Roll

Twin roll casting process combines casting and hot rolling into a single process. In this study, mechanical properties at room temperature and microstructure of the twin roll cast AZ91 magnesium alloy are investigated. The alloy exhibited a good combination of high ultimate strength of 343MPa, yield stress of 224MPa and elongation to failure of 13%. The mechanical property was very excellent compared with AZ91 die-cast alloy. EPMA analysis reveals that the Al concentration in Mg matrix is higher in twin roll cast alloy than that in die-cast alloy. This high Al concentration must be the origin of the good mechanical properties of twin roll cast alloy at room temperature.

Microstructure, mechanical properties and corrosion behavior of Al–Si–Cu–Zn–X (X=Bi, Sb, Sr) die cast alloy

2016 ◽  
Vol 26 (1) ◽  
pp. 28-38 ◽  
Author(s):  
Saeed FARAHANY ◽  
Ali OURDJINI ◽  
Hamid Reza BAKHSHESHI-RAD
Keyword(s):  
Mechanical Properties ◽  
Corrosion Behavior ◽  
Cast Alloy ◽  
Die Cast ◽  
Mechanical Properties And Corrosion

Microstructure and strengthening mechanism of die-cast Mg–Gd based alloys

2008 ◽  
Vol 23 (5) ◽  
pp. 1269-1275
Author(s):  
Qiuming Peng ◽  
Lidong Wang ◽  
Yaoming Wu ◽  
Limin Wang
Keyword(s):  
Mechanical Properties ◽  
High Pressure ◽  
Room Temperature ◽  
Cast Alloy ◽  
Strengthening Mechanism ◽  
Zn Addition ◽  
Die Cast ◽  
The Matrix ◽  
Good Heat Resistance ◽  
Cast Technique

Mg–8Gd–2Y–Nd–0.3Zn (wt%) alloy was prepared by the high pressure die-cast technique. The microstructure, mechanical properties in the temperature range from room temperature to 573 K, and strengthening mechanism were investigated. It was confirmed that the Mg–Gd-based alloy with high Gd content exhibited outstanding die-cast character. The die-cast alloy was mainly composed of small cellular equiaxed dendrites and the matrix. The long lamellar-shaped stacking compound of Mg3X (X: Gd, Y, Nd, and Zn) and polygon-shaped precipitate of Mg5RE (RE: Gd, Y, and Nd) were mainly concentrated along the dendrite boundaries. Meanwhile, it was demonstrated that the Zn addition affects the formation of non-equilibrium precipitate Mg3X. The ultimate tensile strength, yield strength, and Young’s modulus were 302 MPa, 267 MPa, and 38 GPa at room temperature, respectively. The outstanding mechanical properties were mainly attributed to the small dendrite spacing, wide skin region, and some dispersed precipitates in the alloy formed by the high-pressure die-cast technique. Designing a novel die-cast Mg alloy with good heat resistance without Al element is a significant accomplishment.

Microstructural evolution and mechanical properties of as-cast and T6-treated AA2195 DC cast alloy

2012 ◽  
Vol 558 ◽  
pp. 76-81 ◽  
Author(s):  
A. Hekmat-Ardakan ◽  
E.M. Elgallad ◽  
F. Ajersch ◽  
X.-G. Chen
Keyword(s):  
Mechanical Properties ◽  
Microstructural Evolution ◽  
Cast Alloy

Severe plastic deformation of Al-1%Cu Alloy processed by a Simple Cyclic Extrusion Compression technique

2018 ◽  
Vol 1 (1) ◽  
pp. 77-90
Author(s):  
Walaa Abdelaziem ◽  
Atef Hamada ◽  
Mohsen A. Hassan
Keyword(s):  
Mechanical Properties ◽  
Plastic Deformation ◽  
Severe Plastic Deformation ◽  
Deformation Behavior ◽  
Cast Alloy ◽  
Surface Hardness ◽  
Grain Structure ◽  
Compression Technique ◽  
Cu Alloy ◽  
Cyclic Extrusion Compression

Severe plastic deformation is an effective method for improving the mechanical properties of metallic alloys through promoting the grain structure. In the present work, simple cyclic extrusion compression technique (SCEC) has been developed for producing a fine structure of cast Al-1 wt. % Cu alloy and consequently enhancing the mechanical properties of the studied alloy. It was found that the grain structure was significantly reduced from 1500 µm to 100 µm after two passes of cyclic extrusion. The ultimate tensile strength and elongation to failure of the as-cast alloy were 110 MPa and 12 %, respectively. However, the corresponding mechanical properties of the two pass CEC deformed alloy are 275 MPa and 35%, respectively. These findings ensure that a significant improvement in the grain structure has been achieved. Also, cyclic extrusion deformation increased the surface hardness of the alloy by 49 % after two passes. FE-simulation model was adopted to simulate the deformation behavior of the material during the cyclic extrusion process using DEFORMTM-3D Ver11.0. The FE-results revealed that SCEC technique was able to impose severe plastic strains with the number of passes. The model was able to predict the damage, punch load, back pressure, and deformation behavior.

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