摘要
7B50铝合金是一种高强高韧铝合金,对其铸造组织的晶粒进行细化能大幅度提高其力学性能。通过在7B50铝合金铸造过程中施加超声外场,使其铸造组织的晶粒得到显著细化,平均晶粒尺寸约为80μm,并对超声细化晶粒组织的机理进行了分析,其研究结果对7B50铝合金半连续铸造实践具有指导意义。
7B50 alloy is an aluminum alloy with high strength and toughness. solidified structure can substantially improve its mechanical properties. The transferred into the alloy melt during casting and the solidified structure is refined to meters. The mechanism of the effect is analyzed. The results of the study will he semi-continuous casting practice of the alloy. The refining of its ultrasonic energy is the size of 80 micron of significance to the
出处
《上海有色金属》
CAS
2008年第2期47-50,共4页
Shanghai Nonferrous Metals
基金
国家"973"课题"大铸锭能量传输与宏微观缺陷的产生及控制"(课题编号:2005CB23707)
关键词
7850铝合金
凝固组织
晶粒
超声场
细化
7B50 aluminum alloy
solidified structure
crystal
ultrasonic field
refine
