典型文献
An Al-12Si/ZnS powder inoculant for eutectic silicon in Al-12Si alloy
文献摘要:
To obtain high-performance Al-Si-based cast alloys, refinement and modification of Si phases are required. An Al-12Si/ZnS powder inoculant was designed and fabricated using a chemical bath deposition method. The efficiency of the inoculant for modifying the eutectic Si phase in as-cast Al-12Si alloy was studied. Results show that Al-12Si/ZnS powder can significantly refine the eutectic Si in Al-Si cast alloys. The best refinement effect for eutectic Si is achieved with 17.5wt.% Al-12Si/ZnS powder. Coarse long needle-shaped eutectic Si with a length of 18 μm was modified into approximately spherical shape with a diameter of 6.53 μm, which is evenly distributed throughout the alloy. The E2EM model calculation indicates that the inter-plane misfit (Fp) and inter-atomic spacing misfit (Fr) between ZnS and Si are all less than 0.5%, which confirms that ZnS is a potential nucleation site for Si phase. The hardness, tensile strength, and elongation of Al-12Si alloys modified with 17.5% Al-12Si/ZnS powder increase 6.30%, 16.18% and 55.45%, respectively, compared to the unmodified Al-12Si alloy. The fracture behavior of the alloy with 17.5wt.% Al-12Si/ZnS powder is dominated by transgranular fracture supplemented by intergranular fracture.
文献关键词:
中图分类号:
作者姓名:
Ying Wang;Pan-yu Chen;Yu-hui Lin;Mei Zhao;Cheng-dong Li
作者机构:
College of Materials Science and Engineering,Qingdao University of Science&Technology,Qingdao 266042,China
文献出处:
引用格式:
[1]Ying Wang;Pan-yu Chen;Yu-hui Lin;Mei Zhao;Cheng-dong Li-.An Al-12Si/ZnS powder inoculant for eutectic silicon in Al-12Si alloy)[J].中国铸造,2022(02):149-157
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An,12Si,ZnS,powder,inoculant,eutectic,silicon,To,obtain,high,performance,cast,alloys,refinement,modification,phases,required,was,designed,fabricated,using,chemical,bath,deposition,method,efficiency,modifying,studied,Results,show,that,significantly,best,effect,achieved,5wt,Coarse,needle,shaped,length,into,approximately,spherical,diameter,which,evenly,distributed,throughout,E2EM,model,calculation,indicates,plane,misfit,Fp,atomic,spacing,Fr,between,less,than,confirms,potential,nucleation,site,hardness,tensile,strength,elongation,increase,respectively,compared,unmodified,fracture,behavior,dominated,by,transgranular,supplemented,intergranular
AB值:
0.442351
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