Microstructure Evolution and Mechanical Properties of the T6 Heat Treated AA6063 Alloy Produced by Squeeze Casting

2019 ◽  
Vol 120 (8) ◽  
pp. 806-812 ◽  
Author(s):  
S. Souissi ◽  
H. Barhoumi ◽  
M. ben Amar ◽  
F. Elhalouani
Keyword(s):  
Mechanical Properties ◽  
Microstructure Evolution ◽  
Squeeze Casting ◽  
Heat Treated ◽  
Aa6063 Alloy

scholarly journals Microstructure evolution and mechanical properties of rheo-squeeze casting AZ91-Ca alloy during heat treatment

China Foundry ◽  
2017 ◽  
Vol 14 (6) ◽  
pp. 485-491 ◽  
Author(s):  
Yang Zhang ◽  
Xiao-ping Li ◽  
Shun-ping Sun ◽  
Ya-lin Lu ◽  
Guo-hua Wu
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Microstructure Evolution ◽  
Squeeze Casting

Influence of Ti to the Microstructure and Mechanical Properties of Al-12Si-3.2Cu-1Mg-2.4Ni Piston Alloy

2013 ◽  
Vol 477-478 ◽  
pp. 1278-1283
Author(s):  
Ling Zhan Zhou ◽  
Yin Jiang Peng ◽  
Xiu Rong Zhu ◽  
Guang Ming Zhang ◽  
Li Ming Yang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Grain Size ◽  
Tensile Strength ◽  
Squeeze Casting ◽  
Casting Process ◽  
Optical Microscope ◽  
Heat Treated ◽  
Eutectic Si ◽  
Squeeze Casting Process ◽  
Ti Addition

Al-12Si-3.2Cu-1Mg-2.4Ni-χTi (χ=0, 0.2) alloys were prepared by squeeze casting process, and then heat-treated. The mechanical properties were tested at 350°C, the microstructure and phases in them were investigated by optical microscope, SEM, EDS and XRD. It is found that the grain size has an obvious increment after 0.2 wt. % Ti additions to Al-12Si-3.2Cu-1Mg-2.4Ni, and the ultimate tensile strength at elevated-temperature increased accordingly. Intermetallic compounds, such as γ-Al7Cu4Ni, M-Mg2Si, Q-Al5Cu2Mg8Si6 and δ-Al3CuNi existing in alloys with and without Ti addition. Needle-like Ti containing phase with the elements of Al, Si and Ti created in Al-12Si-3.2Cu-1Mg-2.4Ni-0.2Ti alloy, and the eutectic Si is found to distribute by the side of Ti containing phase.

Effect of Fe Content on Microstructures and Mechanical Properties of the Heat-Treated Squeeze Cast Al-5.0Cu-0.6Mn Alloy

2015 ◽  
Vol 817 ◽  
pp. 82-89 ◽  
Author(s):  
Bo Lin ◽  
Zhao Hui Lou ◽  
Jian Lei Fan ◽  
Cheng Kun Zheng ◽  
Wei Wen Zhang
Keyword(s):  
Mechanical Properties ◽  
Electron Probe ◽  
Squeeze Casting ◽  
Cast Alloy ◽  
Electron Probe Micro Analyzer ◽  
Squeeze Cast ◽  
Fe Content ◽  
Heat Treated ◽  
Microstructures And Mechanical Properties ◽  
Scanning Electron

The microstructures and mechanical properties of T5 heat-treated Al - 5.0 wt % Cu - 0.6 wt % Mn alloys with different Fe content prepared by squeeze casting were studied by tensile test, optical microscopy (OM), scanning electron microscope (SEM) and electron probe micro-analyzer (EPMA). The results showed that the dominate Fe-rich intermetallics are α (CuFe) with a few Al3(FeMn),Al6(FeMn), and α-Fe in the alloys depending on different Fe content. With the increasing Fe content continually, the ultimate tensile strength and elongation of the alloys decreased gradually. This is attributed to the increasing amount of Fe-rich intermetallics, the decrease of precipitation particles in α (Al) matrix and the increase of α (Al) dendrite size. The elongation level of 13.7% was still obtained in the squeeze cast alloy even when the Fe content was as high as 1.5%.

Effect of Annealing on the Microstructure Evolution and Mechanical Properties of Dual Phase Steel

2014 ◽  
Vol 782 ◽  
pp. 111-116 ◽  
Author(s):  
Martin Šebek ◽  
Peter Horňak ◽  
Peter Zimovčák
Keyword(s):  
Mechanical Properties ◽  
Present Article ◽  
Microstructure Evolution ◽  
Dual Phase Steel ◽  
Peak Load ◽  
Tensile Tests ◽  
Dual Phase ◽  
Heat Treated ◽  
Intercritical Region ◽  
Evolution Of Microstructure

The aim of present article was to consider the influence of annealing parameters on evolution of microstructure and mechanical properties of dual phase steel. Dual phase steel was annealed according to the three chosen cycles of annealing: into intercritical region (780°C), into austenite region (920°C) and into austenite region (920°C) by subsequently cooling into intercritical region (780°C) with the hold at the temperature of 495°C. Tensile tests of the heat-treated specimens were carried out. The obtained microstructure consists from three phases: ferritic matrix, austenite and martensite. Nanoindentation experiments were performed with the peak load of 19.62 mN for ferrite grains and 0.981 mN for austenite and martensite grains, using a Berkovich tip as an indenter. The nanohardness for ferrite and martensite was 2.5 ±1 GPa and 7.1 ±1 GPa and for austenite the nanohardness varied from 4.1 to 4.5 GPa.

Study of the Mechanical Properties for an Automotive Part under Squeeze Casting Process

2012 ◽  
Vol 602-604 ◽  
pp. 1837-1845
Author(s):  
Surasak Suranuntchai ◽  
Ekkachai Kittikhewtraweeserd
Keyword(s):  
Mechanical Properties ◽  
Laminar Flow ◽  
Squeeze Casting ◽  
Casting Process ◽  
Primary Study ◽  
Gas Porosity ◽  
Heat Treated ◽  
Automotive Part ◽  
Pressure Die Casting ◽  
Squeeze Casting Process

Squeeze casting is process capable to produce high integrity parts. To minimize gas porosity, melt front’s speed must be kept as minimum as possible to ensure the laminar flow pattern with adequate flow rate to be able to fill the cavity before liquid metal is solidified. In this study, the indirect squeeze casting process was adopted to cast a motorcycle’s component originally produced by a high pressure die casting (HPDC) process. Based on shape and dimension of the parts to get the real castings for the mass production, melt’s speed must be higher than the level reported by the literatures (around 1 m/sec). As a result, a fully laminar flow may not be achievable. This is confirmed by the primary study of the process parameters and tooling design using the casting process simulation. Castings from two processes were casted and then mechanically and micro-structurally compared for both as cast and heat treated conditions. Results from the experiment have shown that size of gas porosity found in squeeze casts reduced significantly, while gain size of the squeeze casts trended to be bigger than that of HPDC casts. In terms of the mechanical properties, the ultimate tensile strength of as cast from both processes was not significantly different, while the heat treated squeeze casts has shown the big improvement compared with the as casts.

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