Study of Surface Segregation Defect of 7075 Aluminum Alloy in Semi-Solid Squeeze Casting

Nonanitta Umudee; Jessada Wannasin; Somjai Janudom; Rungsinee Canyook; Thawatchai Plookphol; Sirikul Wisutmethangoon

doi:10.4028/www.scientific.net/AMM.752-753.3

Paper Titles

Preface and Committee

Study of Surface Segregation Defect of 7075 Aluminum Alloy in Semi-Solid Squeeze Casting
p.3

Effects of Solid Fractions in a Slurry Die Casting Process on Defects of 7075 Aluminum Alloy
p.7

Deposition and Characterization of CoCrAlY Coatings by Multi-Chamber Detonation Sprayer
p.11

Properties and Peculiarities of WCCoCr Coatings Formed by Multi-Chamber Detonation Sprayer
p.17

Corrosion of Fe-2.25Cr-1.6W-0.1Mo Steels in Na₂SO₄ Salts at 800 and 900°C
p.22

Corrosion of T92 Steels in Na₂SO₄ Salts at 800 and 900°C
p.26

The Simulation of the Electrolyte Temperature Effect on the Value Change of the Microhardness of Anodic Alumina Oxide Layers
p.30

Corrosion of SUS 310 Steels at 600-800°C in N₂/H₂O/H₂S Gases
p.35

HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 752-753Study of Surface Segregation Defect of 7075...

Study of Surface Segregation Defect of 7075 Aluminum Alloy in Semi-Solid Squeeze Casting

Abstract:

The objective of this present research was to study the surface liquid segregation (SLS) of 7075 aluminum alloy formed by semi-solid squeeze casting together with the gas induce semi-solid technique (GISS). The rheocasting times of 3, 5, 10, and 20 seconds, were used in GISS processes. The cross sectional areas of specimens near the mold were used to measure the surface segregation. The results revealed that longer rheocasting time gave higher amount of solid fraction in the semi-solid slurry. In addition, it was found that when solid fraction increased, the surface segregation increased.

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Applied Mechanics and Materials (Volumes 752-753)

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3-6

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.752-753.3

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Online since:

April 2015

Authors:

Nonanitta Umudee*, Jessada Wannasin, Somjai Janudom, Rungsinee Canyook, Thawatchai Plookphol, Sirikul Wisutmethangoon

Keywords:

7075 Aluminum Alloy, Gas Induce of Semi Solid (GISS), Initial Solid Fractions, Surface Segregation

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