刘谨,黎振华,岑启宏,刘静,刘美红,周荣锋

• 1:昆明理工大学材料科学与工程学院
• 2:昆明理工大学信息与自动化学院
• 3:昆明理工大学机电工程学院

摘要(Abstract)：

研究了脉冲电流对过共晶Fe-C-B合金凝固组织初生相的影响。结果表明,脉冲电流影响过共晶Fe-C-B合金中初生硼化物的形核过程,提高硼化物晶核的形成温度,使过共晶Fe-C-B合金中的初生硼化物提前形核,细化初生硼化物,但不能明显增加硼化物晶核数。在相同的热历程下,脉冲电流不改变试样凝固组织物相组成。

关键词(KeyWords)： 过共晶Fe-C-B合金;脉冲电流;硼化物;形貌

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(50701020,51171073);; 云南省中青年学术技术带头人后备人才培养项目(2008PY011,2009CI022)

作者(Author): 刘谨,黎振华,岑启宏,刘静,刘美红,周荣锋

DOI: 10.13289/j.issn.1009-6264.2013.09.009

参考文献(References)：

• [1]Nakada M.Modification of solidification structure by pulse electric discharging[D].Commonwealth of Massachusetts:Massachusetts Institute of Technology,1985.
• [2]Li J M,Li S L,Li J,et al.Modification of solidification structure by pulse electric discharging[J].Scripta Metallurgica et Materialia,1994,31(12):1691-1694.
• [3]Liao X L,Zhai Q J,Song C J,et al.Effects of the electric current pulse on stability of solid/liquid interface of Al-4.5wt%Cu alloy during directional solidification[J].Materials Science and Engineering A,2007,466(1-2):56-60.
• [4]路漫漫,李慧,缑慧阳,等.电脉冲处理对低碳钢显微组织的影响[J].材料热处理学报,2007,28(1):75-78.LU Man-man,LI Hui,GOU Hui-yang,et al.Effect of electropulsing treatment on microstructure of low carbon steel[J].Transactions of Materials and Heat Treatment,2007,28(1):75-78.
• [5]何力佳,王建中,齐锦刚,等.电脉冲作用下Al-22%Si合金凝固组织的变化机制[J].材料热处理学报,2007,28(4):102-105.HE Li-jia,WANG Jian-zhong,QI Jin-gang,et al.Effect of electric pulse on the solidified structure of Al-22%Si alloy[J].Transactions of Materials and Heat Treatment,2007,28(4):102-105.
• [6]赵国荣,黎振华,蒋业华,等.铸造Fe-C-B合金组织与性能研究[J].铸造,2008,57(5):451-457.ZHAO Guo-rong,LI Zhen-hua,JIANG Ye-hua,et al.Microstructure and properties of cast Fe-C-B alloy[J].Foundry,2008,57(5):451-457.
• [7]Chen X,Li Y X.Effect of heat treatment on microstructure and mechanical properties of high boron white cast iron[J].Materials Science and Engineering A,2010,528(15):770-775.
• [8]Huang Z F,Xing J D,Guo C.Improving fracture toughness and hardness of Fe 2 B in high boron white cast iron by chromium addition[J].Materials and Design,2010,31(6):3084-3089.
• [9]Yi D W,Xing J D,Fu H G,et al.Effect of rare earth-Al additions on the structural variations of medium carbon Fe-B cast alloy[J].Key Engineering Materials,2010,457:213-218.
• [10]Hans B,Anastasia S,Arne R,et al.Wear protection by Fe-C-B hard phases[J].Steel Research Int,2011,82(7):786-794.
• [11]廖希亮.脉冲电流对金属凝固组织的影响[D].上海:上海大学,2007.LIAO Xi-liang.Effect of electric current pulse on solidification structure of metal[D].Shanghai:Shanghai University,2007.
• [12]李飞,黎振华,赵国荣,等.硼对Fe-0.77C-B合金凝固组织先共晶相的影响[J].铸造,2009,58(2):162-165.LI Fei,LI Zhen-hua,ZHAO Guo-rong,et al.Effect of boron on proeutectic phase in Fe-0.77C-B alloy solidification microstructure[J].Foundry,2009,58(2):162-165.
• [13]王建中.电脉冲孕育处理技术与液态金属团簇结构假说的研究[D].北京:北京科技大学,1998.WANG Jian-zhong.The research of treating technology with electro-pulse modification and the hypothesis of liquid metal cluster structure[D].Beijing:Beijing University of Science and Technology,1998.
• [14]王建中,苍大强,唐勇,等.电脉冲孕育处理对Al-5.0%Cu合金凝固结构的影响[J].铸造,1999,48(5):4-7.WANG Jian-zhong,CANG Da-qiang,TANG Yong,et al.Effects of electron pulse inoculation treatment on the solidified structure of Al-5.0%Cu alloy[J].Foundry,1999,48(5):4-7.
• [15]曹丽云,王建中,曹力生,等.电脉冲孕育处理Al-Si合金变质新方法[J].新技术新工艺,2001,22(12):40-42.CAO Li-yun,WANG Jian-zhong,CAO Li-sheng,et al.The new method of Al-Si alloy modified treatment with EPM[J].New Technology and New Process,2001,22(12):40-42.
• [16]Liao X L,Zhai Q J,Luo J,et al.Refining mechanism of the electric current pulse on the solidification structure of pure aluminum[J].Acta Materialia,2007,55(9):3103-3109.
• [17]下地光雄.液态金属[M].郭金钦,译.北京:北京科学出版社,1987.
• [18]王劲,尹建军,丁雨田,等.ZA27合金在直流电流作用下的凝固行为[J].甘肃工业大学学报,2003,29(3):36-38.WANG Jing,YIN Jian-jun,DING Yu-tian,et al.Solidification behavior of alloy ZA27 under action of direct current[J].Journal of Gansu University of Technology,2003,29(3):36-38.
• [19]Michaela W E K,Matthiesen H D.Determination of the Peltier coefficient of germanium in a vertical Bridgman-Stockbarger furnace[J].Journal of Crystal Growth,1997,174(1-2):197-201.
• [20]Corrs S,Duffar T,Bernard M,et al.Numerical simulation and validation of the Peltier pulse marking of solid/liquid interfaces[J].Journal of Crystal Growth,1997,180(3-4):604-614.

文章评论(Comment)：