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Effect of Water Chill in Metallic Mould during Solidification of Al Alloy (7075) Reinforced With Bottom Ash


Author(s):

Mr. Suresh Rathod , SIT TUMKUR KARNATAKA; Dr. Umashankar, SIT TUMKUR

Keywords:

Al 7075, Bottom Ash, Stir Casting, water chill, metal mould

Abstract:

Composites are most successful materials used for recent works in the industry. Metal composites possess significantly improved properties including high tensile strength, toughness, hardness, low density and good wear resistance compared to alloys or any other metal. There has been an increasing interest in composites containing low density and low cost reinforcements. In this work an attempt is made to the casting of Al-bottom ash composite using mild steel mould with water as chill. In our research work pure Al 7075 took as the matrix material and bottom ash as the reinforcing material. The composite is produced by stir casting technique. It is observed that chill effect has significant improvement in tensile properties and hardness are noticeable as the wt. % of the bottom ash increases in comparison with unreinforced matrix. Solidification time is one of the important parameter used for obtaining the different properties of materials. The using of metallic mould (mild steel) which causes reduces the shrinkage, porosity and faster cooling rate and produces higher strength casting than sand mould. Faster cooling of casting is done by metal mould as well as water circulation uniformly at the end of the casting which carries heat at faster rate and gives finer micro structure and improves mechanical properties.


Other Details:

Manuscript Id :IJSTEV1I5024
Published in :Volume : 1, Issue : 5
Publication Date: 01/12/2014
Page(s): 7-13
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