文章摘要
浇注温度和ECAP对铝合金坯料组织的影响
A New Process for Preparation of the Semi-solid Sample of A356 Alloy
Received:June 08, 2010  Revised:January 10, 2011
DOI：
中文关键词: 近液相线法  新SIMA法  A356铝合金  半固态坯料
英文关键词: near-liquidus method  new SIMA  A356 alloy  semi-solid sample
基金项目:
Author NameAffiliation
JIANG Hua-hai School of Material Science and Engineering，Hefei University of Technology， Hefei 230009， China 
LI Ping School of Material Science and Engineering，Hefei University of Technology， Hefei 230009， China 
ZHU Guang-yu School of Material Science and Engineering，Hefei University of Technology， Hefei 230009， China 
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中文摘要:
      采用近液相线法结合新SIMA法复合工艺制备半固态A356铝合金坯料，研究了浇注温度、等径角挤压（ECAP）和半固态处理温度、时间对坯料组织的影响。结果表明，适当的工艺参数可以制备出球状初生α-Al相晶粒的半固态A356铝合金坯料，其中较合理的工艺参数为：近液相线浇注温度为610 ℃，半固态保温温度为580 ℃，半固态保温时间为20 min。
英文摘要:
      The semi-solid sample of A356 alloy was manufactured by new SIMA after pouring at near-liquidus temperature. The effects of pouring temperature, ECAP and holding time on the sample were studied. The results show that the spherical semi-solid A356 alloy sample can be prepared through appropriate process parameters. The method can acquire the matching process parameters which are held 20 minutes at 580 ℃ after pouring at 610 ℃.
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