Microstructure and Mechanical Properties of Twin-Roll Strip-Cast Al-5.5Mg-0.02Ti Alloy Sheet

Cheon, Boo Hyeon; Han, Jun Hyun; Kim, Su-Hyeon; Lee, Jae Chul

doi:10.3365/kjmm.2010.48.05.387

Cited by 5 publications

(2 citation statements)

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“…It is commonly known that strip cast alloy represents rapid solidified microstructures due to a fast cooling rate. 14) J. Cai et al 15) reported similar fine globular or cellular type dendrites observed in rapid cooled magnesium alloy. Mean- Figure 3 shows the XRD analysis results of strip cast Al 3527 K alloys.…”

Section: Microstructure Of Strip Cast Al 3527 K Alloysmentioning

confidence: 70%

Effect of Heat Treatment on Tensile and Fatigue Properties of Al 3527 K Alloy Manufactured by Strip Casting

et al. 2016

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This study investigated the effect of heat treatment on the tensile and fatigue properties of Al 3527 K alloy manufactured by the strip casting process. Al 3527 K alloy (as strip cast material, F) produced by twin roll strip casting and heat treated (480°C/6 h., H) alloy were examined and compared. Microstructure observation results revealed that both alloys (F and H) featured rapid solidification microstructures. In addition, both alloys were identified to be composed of Al, Al 6 (Mn, Fe) and AlFeMnSi phases. As heat treatment was applied, H alloy formed a more even phase distribution than F alloy. Tensile results showed F alloy to have a yield strength of 135.0 MPa, tensile strength of 194.7 MPa and elongation of 14.3%, while H alloy had a yield strength of 147.9 MPa, tensile strength of 235.2 MPa and elongation of 10.9%. The tensile properties showed that heat treatment resulted in an increase of strength and decrease of elongation. In tensile fracture surface observation, both alloys showed typical ductile fracture modes. The F alloy was measured to have a dimple size of 6.8 µm on average, and the H alloy measured 4.2 µm in tensile fracture surfaces. High-cycle fatigue results showed the F alloy to have a fatigue limit of 120 MPa, and the H alloy to have that of 145 MPa. Al 3527 K-F alloy featured a larger deviation in fatigue life in all identical stress conditions compared to the H alloy. This study also discussed the tensile and fatigue deformation behaviors of Al 3527 K alloy manufactured by strip casting through the abovementioned mechanical properties as well as the fractographies.

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Section: Microstructure Of Strip Cast Al 3527 K Alloysmentioning

confidence: 70%

Effect of Heat Treatment on Tensile and Fatigue Properties of Al 3527 K Alloy Manufactured by Strip Casting

et al. 2016

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“…To overcome these problems, which are related to the high temperature sintering process for the fabrication of porous-surfaced Ti implant prototypes, we have introduced electro-discharge-sintering (EDS) which uses a high voltage and a high current pulse [9][10][11][12]. Fully porous and poroussurfaced Ti-6Al-4V implant prototypes without a change of microstructure were produced by EDS of Ti-6Al-4V spherical powders.…”

Section: Introductionmentioning

confidence: 99%

Self-Consolidation Mechanism Of Porous Ti-6Al-4V Implant Prototypes Produced By Electro-Discharge-Sintering Of Spherical Ti-6Al-4V Powders

Lee

Kim

et al. 2015

Archives of Metallurgy and Materials

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Electro-Discharge-Sintering (EDS) was employed to fabricate Ti-6Al-4V porous implant prototypes from atomized powders (100 -150 µm), that were subjected to discharges of 0.75 to 2.0 kJ/0.7g-powder from 150, 300, and 450 µF capacitors. Both fully porous and porous-surfaced Ti-6Al-4V compacts with various solid core sizes were self-consolidated in less than 86 -155 µsec. It is known that EDS can simultaneously produce the pinch pressure to squeeze and deform powder particles and the heat to weld them together. The formation of a solid core in these prototypes depends on the amounts of both the pinch pressure and heat generated during a discharge. The size of the solid core and the thickness of the porous layer can be successfully controlled by manipulating the discharge conditions such as input energy and capacitance.

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The die turning injection (DTI) process for the fabrication of hollow parts

Lee

Joo

Moon³

et al. 2012

Journal of Materials Processing Technology

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Microstructure and Mechanical Properties of Twin-Roll Strip-Cast Al-5.5Mg-0.02Ti Alloy Sheet

Cited by 5 publications

References 0 publications

Effect of Heat Treatment on Tensile and Fatigue Properties of Al 3527 K Alloy Manufactured by Strip Casting

Effect of Heat Treatment on Tensile and Fatigue Properties of Al 3527 K Alloy Manufactured by Strip Casting

Self-Consolidation Mechanism Of Porous Ti-6Al-4V Implant Prototypes Produced By Electro-Discharge-Sintering Of Spherical Ti-6Al-4V Powders

The die turning injection (DTI) process for the fabrication of hollow parts

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