过共晶铝硅合金中初晶硅复合异质形核的研究
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摘要
采用磷变质细化过共晶铝硅合金中的初晶硅相,并对工业熔体中存在的多种粒子进行研究。结果表明,在过共晶铝硅合金中存在多种异质粒子(如Al P和Si O2)及复合异质粒子[如Al P/Si O2和Al P/(Al2O3+Si O2)]等多种形核中心,这些粒子都能为初晶硅相形核提供固相衬底。在工业合金熔铸过程中,需综合考虑多种粒子的异质形核作用。
The primary silicon phase in the hypereutectic Al-Si alloy was refined by phosphorus modification,and various kinds of particles existing in the industrial melt were studied. The results show that there are heterogeneous particles(AlP and SiO_2)and complex heterogeneous particles [AlP/SiO_2 and Al P/(Al_2O_3+SiO_2)]in the melt, which provides the solid phase substrate for the nucleation of the primary silicon phase. In the casting process, the variety of roles by heterogeneous nucleation needs to be taken into account.
The primary silicon phase in the hypereutectic Al-Si alloy was refined by phosphorus modification,and various kinds of particles existing in the industrial melt were studied. The results show that there are heterogeneous particles(AlP and SiO_2)and complex heterogeneous particles [AlP/SiO_2 and Al P/(Al_2O_3+SiO_2)]in the melt, which provides the solid phase substrate for the nucleation of the primary silicon phase. In the casting process, the variety of roles by heterogeneous nucleation needs to be taken into account.
引文
[1]王杰芳,谢敬佩,刘忠侠,等.国内外铝硅活塞合金的研究及应用述评[J].铸造,2005,54(1):24-27.
[2]赖华清,范宏训,徐祥.过共晶铝硅合金的研究及应用[J].汽车工艺与材料,2001(10):21-24.
[3]顾恒恒,水丽.变质处理及合金化对Al-18Si摩擦磨损性能的影响[J].铸造,2016,65(5):416-419.
[4]罗影,李元东,李夏,等.CDS铸造过共晶铝硅合金组织及性能研究[J].铸造,2012,61(4):373-377.
[5]Sun Yongbin.Microstructure control and investigation of nucleation and growth mechanism of silicon crystal grown from the hypereutectic Al-Si melt[D].UMI,1989:41-42.
[6]Dai Hongshang,Liu Xiangfa.The combined effect of titanic carbide and aluminum phosphide on the refinement of primary silicon in Al-50Si alloy[J].International Journal of Materials Research,2008,99(12):1379-1383.
[7]Yu Lina,Liu Xiangfa,Ding Haimin,et al.A new nucleation mechanism of primary Si by like-peritectic coupling of Al P and Ti B2in near eutectic Al-Si alloy[J].Journal of Alloys and Compounds,2007,432(1-2):156-162.
[8]Yu Lina,Liu Xiangfa,Ding Haimin,et al.A new nucleation mechanism of primary Si by like-peritectic coupling of Al P and Al4C3 in near eutectic Al-Si alloy[J].Journal of Alloys and Compounds,2007,429(1-2):119-125.
[9]Volmer M,Weber A.Nucleus formation in supersaturated systems[J].Zeitschrift fur Physikalische Chemie,1926,119:277-301.
[10]Becker R,D ring W.The kinetic treatment of nuclear formation in supersaturated vapors[J].Annals of Physics,1935,24(719):719-771.
[11]Becker R.Nodule formation in the segregation of metallic solid Solutions[J].Annals of Physics,1938,32:128-140.
[12]Turnbull D,Fisher J C.Rate of nucleation in condensed systems[J].The Journal of Chemical Physics,1949,17(1):71-73.
[13]Jefferson P H,Buckle L,Bennett B R,et al.Growth of dilute nitride alloys of Ga In Sb lattice-matched to Ga Sb[J].Journal of Crystal Growth,2007,304(2):338-341.
[14]Winkelman G B,Raviprasad K,Muddle B C.Orientation relationships and lattice matching for the S phase in Al-Cu-Mg alloys[J].Acta Materialia,2007,55(9):3213-3228.
[15]姚书芳,毛卫民,赵爱民,等.过共晶铝硅合金细化变质剂的研究[J].特种铸造及有色合金,2004(5):1-3.
[16]Ho C R,Cantor B.Heterogeneous nucleation of solidification of Si in Al-Si and Al-Si-P alloys[J].Acta Metallurgica et Materialia,1995,43(8):3231-3246.
[17]Levin I,Brandon D.Metastable alumina polymorphs:crystal structures and transition sequences[J].Journal of the American Ceramic Society,1998,81(8):1995-2012.
[18]罗筱雄,崔建忠,陈丹丹.铝合金熔体中夹杂物及其在线检测技术研究进展[J].铸造,2014,63(2):138-144.
[19]田荣璋.铸造铝合金[M].长沙:中南大学出版社,2006:182.
[20]J A迪安.兰氏化学手册(第十三版)[M].北京:科学出版社,1999.
[2]赖华清,范宏训,徐祥.过共晶铝硅合金的研究及应用[J].汽车工艺与材料,2001(10):21-24.
[3]顾恒恒,水丽.变质处理及合金化对Al-18Si摩擦磨损性能的影响[J].铸造,2016,65(5):416-419.
[4]罗影,李元东,李夏,等.CDS铸造过共晶铝硅合金组织及性能研究[J].铸造,2012,61(4):373-377.
[5]Sun Yongbin.Microstructure control and investigation of nucleation and growth mechanism of silicon crystal grown from the hypereutectic Al-Si melt[D].UMI,1989:41-42.
[6]Dai Hongshang,Liu Xiangfa.The combined effect of titanic carbide and aluminum phosphide on the refinement of primary silicon in Al-50Si alloy[J].International Journal of Materials Research,2008,99(12):1379-1383.
[7]Yu Lina,Liu Xiangfa,Ding Haimin,et al.A new nucleation mechanism of primary Si by like-peritectic coupling of Al P and Ti B2in near eutectic Al-Si alloy[J].Journal of Alloys and Compounds,2007,432(1-2):156-162.
[8]Yu Lina,Liu Xiangfa,Ding Haimin,et al.A new nucleation mechanism of primary Si by like-peritectic coupling of Al P and Al4C3 in near eutectic Al-Si alloy[J].Journal of Alloys and Compounds,2007,429(1-2):119-125.
[9]Volmer M,Weber A.Nucleus formation in supersaturated systems[J].Zeitschrift fur Physikalische Chemie,1926,119:277-301.
[10]Becker R,D ring W.The kinetic treatment of nuclear formation in supersaturated vapors[J].Annals of Physics,1935,24(719):719-771.
[11]Becker R.Nodule formation in the segregation of metallic solid Solutions[J].Annals of Physics,1938,32:128-140.
[12]Turnbull D,Fisher J C.Rate of nucleation in condensed systems[J].The Journal of Chemical Physics,1949,17(1):71-73.
[13]Jefferson P H,Buckle L,Bennett B R,et al.Growth of dilute nitride alloys of Ga In Sb lattice-matched to Ga Sb[J].Journal of Crystal Growth,2007,304(2):338-341.
[14]Winkelman G B,Raviprasad K,Muddle B C.Orientation relationships and lattice matching for the S phase in Al-Cu-Mg alloys[J].Acta Materialia,2007,55(9):3213-3228.
[15]姚书芳,毛卫民,赵爱民,等.过共晶铝硅合金细化变质剂的研究[J].特种铸造及有色合金,2004(5):1-3.
[16]Ho C R,Cantor B.Heterogeneous nucleation of solidification of Si in Al-Si and Al-Si-P alloys[J].Acta Metallurgica et Materialia,1995,43(8):3231-3246.
[17]Levin I,Brandon D.Metastable alumina polymorphs:crystal structures and transition sequences[J].Journal of the American Ceramic Society,1998,81(8):1995-2012.
[18]罗筱雄,崔建忠,陈丹丹.铝合金熔体中夹杂物及其在线检测技术研究进展[J].铸造,2014,63(2):138-144.
[19]田荣璋.铸造铝合金[M].长沙:中南大学出版社,2006:182.
[20]J A迪安.兰氏化学手册(第十三版)[M].北京:科学出版社,1999.