Solid State Phenomena, Volume (285), No (1), Year (2019-1) , Pages (271-276)

Title : ( Addition of Swarf to Produce a Semi-Solid Slurry during High Pressure Die-Casting of AS9U3 Aluminum Alloy )

Authors: hooman hadian , Mohsen Haddad Sabzevar ,

Access to full-text not allowed by authors

Citation: BibTeX | EndNote

Abstract

An internal cooling agent is used in rapid slurry forming -RSF- process to produce a high solid fraction slurry for a short period of time. In the process used in this research, the swarf which is known to be a low enthalpy material was added to the melt as the internal cooling agent. During the process, the swarf started to melt and a semi-solid slurry with a relatively high solid fraction was formed. This slurry was formed by exchanging the enthalpies between the low and high enthalpy materials. A commercial Al-Si-Cu alloy, i.e. AS9U3 Aluminum alloy, was used in this investigation. The microscopic examination showed that the Al-Si eutectic colonies start to melt during the melting process of swarf material resulting in the formation of globular Alpha-Al grains due to the multiplication of secondary dendrites arms. The fracture of dendrites arms and the subsequent spheroidization were suggested to be the origin of non-dendritic globular grains in the final microstructure. The amount of primary globular Alpha-phase was measured by the image analysis software. The results showed that during high pressure die-casting of AS9U3 Aluminum alloy using 4 mm thick samples, around 35 percent solid has been formed at the temperature of 580 ºC.

Keywords

, slurry, swarf, AS9U3 alloy, solid fraction, dendrite, globular
برای دانلود از شناسه و رمز عبور پرتال پویا استفاده کنید.

@article{paperid:1073070,
author = {Hadian, Hooman and Haddad Sabzevar, Mohsen},
title = {Addition of Swarf to Produce a Semi-Solid Slurry during High Pressure Die-Casting of AS9U3 Aluminum Alloy},
journal = {Solid State Phenomena},
year = {2019},
volume = {285},
number = {1},
month = {January},
issn = {1662-9779},
pages = {271--276},
numpages = {5},
keywords = {slurry; swarf; AS9U3 alloy; solid fraction; dendrite; globular},
}

[Download]

%0 Journal Article
%T Addition of Swarf to Produce a Semi-Solid Slurry during High Pressure Die-Casting of AS9U3 Aluminum Alloy
%A Hadian, Hooman
%A Haddad Sabzevar, Mohsen
%J Solid State Phenomena
%@ 1662-9779
%D 2019

[Download]