Influence of Die Casting Temperature and T1 Treatment on the Microstructure and Properties of the Alsicumg Alloy

Li Jun Wei; Bo Long Li; Liu Yi Guan; Tong Bo Wang; Peng Qi; Zuo-Ren Nie

doi:10.4028/www.scientific.net/MSF.877.127

Paper Titles

Grain Refinement in an Al-Zn-Mg-Cu Casting Ingot
p.104

Effects of Si Addition on the Microstructure and Tensile Property of Al-xMg Alloys with Al₂Ca during Heat Treatment (x: 5 and 7 Mass%)
p.109

Research of Preparing Parameters in the Complex Process on Microstructure in Semisolid A356 Alloy Slurry with Micro-Addition of La
p.114

Effects of Ti Powder Additions in Melt-SHS Process on the Performance of Al-Ti-B Grain Refiner Alloys
p.121

Influence of Die Casting Temperature and T1 Treatment on the Microstructure and Properties of the Alsicumg Alloy
p.127

Investigation of Phosphorus-Containing Compounds in Aluminium Alloys with Emphasis on the Formation Mechanism
p.132

Effects of Si Content on the Tensile Strength and Machinability of Al-Mg-Si-Cu-Mn-Cr Alloys
p.141

Detection of Quench Induced Precipitation in Al Alloys by Dilatometry
p.147

Effects of Homogenization Treatment on Dispersoid Characteristics and Recrystallization Behavior in an Al-Zn-Mg-Cu-Zr Alloy
p.153

HomeMaterials Science ForumMaterials Science Forum Vol. 877Influence of Die Casting Temperature and T1...

Influence of Die Casting Temperature and T1 Treatment on the Microstructure and Properties of the Alsicumg Alloy

Abstract:

Al-Si alloy was widely applied in automobile engine parts to realize weight reduction. The influence of casting temperature on the microstructure of die casting Al-Si-Cu-Mg alloy was studied in this paper. Based on ZL 101 alloy, the strength was improved with addition of 0.8% Cu element. The influence of pouring temperature on microstructure was investigated using optical microscope and electron probe micro-analysis (EPMA), and T1 heat treatment was optimized. The primary α-Al was more coarsened when the pouring temperature rose from 660 ̊C to 690 ̊C. The solid solubility of Cu in α-Al was 0.2406 wt%, analyzed by EPMA. Considering the solid solubility of Cu and avoiding porosity at high-temperature, T1 heat treatment was reasonable and affective. The micro-hardness reached to a peak value of 114 HV during aging at a temperature of 175 ̊C after 10 h. Therefore, 175 ̊C×10h aging was the most appropriate heat treatment process.

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Materials Science Forum (Volume 877)

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127-131

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https://doi.org/10.4028/www.scientific.net/MSF.877.127

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Online since:

November 2016

Authors:

Li Jun Wei, Bo Long Li*, Liu Yi Guan, Tong Bo Wang, Peng Qi, Zuo-Ren Nie

Keywords:

Aging, Die Casting, EPMA, Supersaturated Solid Solution

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