肖寒,陈泽邦,陆常翁,卢德宏,蒋业华,周荣

• 1:昆明理工大学材料科学与工程学院

摘要(Abstract)：

对ZCu Sn10铜合金坯料进行液态浇注和半固态挤压成形,通过组织演变的分析,研究不同工艺对ZCu Sn10铜合金半固态挤压液固协同流动性的影响。结果表明,不同工艺对ZCu Sn10铜合金挤压组织液固协同流动性影响不同,在930℃保温40 min挤压速率为12 mm/s可获得固液协同流动较好的挤压成形件组织。相同挤压工艺条件,半固态挤压成形件各个位置组织差异较大。近冲头位置保持初始半固态组织;试样中部位置为固液两相共存的半固态组织、固相颗粒圆整度较高;试样最前端的微观组织中以液相为主,固液两相分布均匀性较差。

关键词(KeyWords)： ZCu Sn10铜合金;半固态挤压;液固协同流动;组织演变

Abstract:

Keywords:

基金项目(Foundation): 云南省应用基础研究重点项目(2011FA007);; 高等学校博士学科点专项科研基金(20125314120013);; 云南省应用基础研究面上项目(2014FB131);; 云南省教育厅科学研究基金重点项目(2015Z031)

作者(Author): 肖寒,陈泽邦,陆常翁,卢德宏,蒋业华,周荣

DOI: 10.13289/j.issn.1009-6264.2015.12.007

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