Al-5Nb-RE-B新型细化剂组织和细化效果研究（英文）

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英文篇名：Microstructure and Grain Refinement Performance of a New Al-5Nb-RE-B Master Alloy 作者：武晓燕 ; 张花蕊 ; 姜峰 ; 员莹 ; 贾丽娜 ; 张虎 英文作者：Wu Xiaoyan;Zhang Huarui;Jiang Feng;Yun Ying;Jia Lina;Zhang Hu;School of Materials Science and Engineering, Beihang University;Beijing Key Laboratory for Advanced Functional Material and Thin Film Technology, Beihang University;Sanmencia Polytechnic; 关键词：Al-5Nb-RE-B晶粒细化剂 ; 细化效果 ; 冷速敏感性 ; A356铝合金 英文关键词：Al-5Nb-RE-B master alloy;;grain refinement;;cooling rate sensitivity;;A356 aluminum alloy 中文刊名：COSE 英文刊名：Rare Metal Materials and Engineering 机构：北京航空航天大学材料科学与工程学院;北京航空航天大学特种功能材料与薄膜技术北京市重点实验室;三门峡职业技术学院; 出版日期：2018-07-15 出版单位：稀有金属材料与工程 年：2018 期：v.47;No.384 语种：英文; 页：COSE201807011 页数：6 CN：07 ISSN：61-1154/TG 分类号：71-76

摘要

采用熔体反应方法制备了一种新型Al-5Nb-RE-B新型细化剂,研究了Al-5Nb-RE-B细化剂对A356铝合金的细化效果的影响。结果表明,Al-5Nb-RE-B细化剂主要包含α-Al基体相、Al3RE、Nb2A120RE和NbB2 4种相;当Al-5Nb-RE-B新型细化剂添加量为1.0%(质量分数)时,A356铝合金的晶粒尺寸从800μm降到200μm;Al-5Nb-RE-B新型细化剂的添加可以增大冷却速度范围,即新型细化剂具有较低的冷速敏感性。
        A new kind of grain refiner Al-5 Nb-RE-B master alloy with uniform microstructure was prepared by melt reaction method. The effect of Al-5 Nb-RE-B inoculation on grain refinement of A356 aluminum alloy was studied. The results show that the Al-5 Nb-RE-B master alloy consists of a-Al phase, A13 RE, Nb2 A120 RE, and NbB2 phases. When the prepared Al-5 Nb-RE-B master alloy was added in an amount of 1.0 wt%, the grain size of the A356 alloy was reduced from 800 μm to 200 μm. Analysis of the A356 alloy solidified at a wide range of cooling rates indicate that 1.0 wt% Al-5 Nb-RE-B inoculation exhibits the lowest sensitivity to cooling rate.

引文

1 Sha M,Wu S,Wang X et al.Materials Science and Engineering A[J],2012,535(7):258
    2 Chen Z W,Ma C Y,Chen P.Transactions of Nonferrous Metals Society of China[J],2012,22(1):42
    3 Nowak M,Bolzoni L,Hari B N.Materials&Design[J],2015,66:366
    4 Merlin M,Timeli G,Bonollo F et al.Journal of Materials Processing Technology[J],2009,209(2):1060
    5 Aguirre-Delatorre E,Pérez-Bustamante R,CamarilloCisneros J et al.Journal of Rare Earths[J],2013,31(8):811
    6 Metan V,Eigenfeld K,R?biger D et al.Journal of Alloys and Compounds[J],2009,487(1-2):163
    7 Fan Z,Wang Y,Zhang Y et al.Acta Materialia[J],2015,84:292
    8 Bolzoni L,Nowak M,Hari B N.Materials&Design[J],2015,66:376
    9 Bolzoni L,Nowak M,Hari B N.Materials Science and Engineering A[J],2015,628:230
    10 Nowak M,Bolzoni L,Hari B N et al.Materials&Design[J],2015,75:40
    11 Bolzoni L,Nowak M,Hari B N.Journal of Alloys and Compounds[J],2015,623:79
    12 Wang X J,Xu C,Muhammad A et al.Transactions of Nonferrous Metals Society of China[J],2014,24(7):2244
    13 Zhao H L,Song Y,Li M et al.Journal of Alloys and Compounds[J],2010,508(1):206
    14 Wang Zhengjun,Si Naichao.Rare Metal Materials and Engineering[J],2015,44(12):2970(in Chinese)
    15 Zhang H R,Liu Z B,Li Z Z et al.Acta Metallurgica Sinica,English Letters[J],2016,29(5):41