摘要
研究稀土铝合金非枝晶坯料的制备工艺和580℃保温的重熔组织。实验表明,浇铸温度、铸件尺寸、浇铸模具和浇铸方式对合金非枝晶组织制备有明显的影响。在液相线温度采用斜坡铜模浇铸可制备优良的非枝晶组织坯料,其重熔组织为细小均匀的等轴球状晶,晶粒平均直径为44.2μm,晶粒平均圆度为2.08。
The preparation processing of non-dendritic RE billet of Al-Si alloy is discussed, and the remelting structure of aluminum alloy holding at 580 ℃ is also researched. Experiment shows that casting temperature, casting size, casting mould and casting mode have great influence on the preparation of non-dendritic alloy structure. Slope copper mold casting at liquidus temperature can he used in preparing excellent non-dendritic structure billet, its remelting structure is uniform with small equiaxed spherical grain, the average diameter of grain is 44.2 μm and its average roundness is 2.08.
出处
《兵器材料科学与工程》
CAS
CSCD
2009年第3期21-23,共3页
Ordnance Material Science and Engineering
基金
江西省教育厅科技研究项目(GJJ08429)
关键词
非枝晶
重熔组织
稀土
铝硅合金
non-dendritic
remelting structure
rare earth （RE）
Al-Si alloy
