细晶Mg-Ce中间合金的制备及其对AZ91D组织和性能的影响<sup>*</sup>

doi:10.11896/j.issn.1005-023X.2017.012.016

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Abstract In order to research the modification effect of fine-grained Mg-Ce master alloy on AZ91D, fine-grained Mg-Ce master alloy was prepared by copper mold inject casting and the influence of it on the microstructure and properties of AZ91D alloy was investigated. Results showed that the size of Mg₁₂Ce phase in fine-grained Mg-Ce master alloy was reduced from 50 μm to 10 μm, which indicated the fine-grained Mg-Ce master alloy had been refined dramatically. The modification effect of fine-grained Mg-Ce master alloy was better than that of coarse-grained Mg-Ce master alloy. Compared with AZ91D modified by coarse-grained Mg-Ce master alloy, the tensile strength, elongation rate and Brinell hardness of AZ91D modified by fine-grained Mg-Ce master alloy increased by 5.23%, 15.14% and 6.92% respectively, and the corrosion rate decreased by 44.62%. Therefore, copper mold inject casting is an effective way to improve the modification effect of Mg-Ce master alloy.

Key words： copper mold inject casting fine-grained Mg-Ce master alloy AZ91D

Published: 08 May 2018

CLC number:

TG146.2

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	Articles by authors
	DONG Tianshun
	WANG Tuo
	ZHENG Xiaodong
	ZHOU Xiukai
	LIU Jinhai
	LI Guolu
	CUI Chunxiang

Cite this article:

DONG Tianshun,WANG Tuo,ZHENG Xiaodong, et al. Preparation of Fine-grained Mg-Ce Master Alloy and Its Effect on Microstructure and Properties of AZ91D[J]. Materials Reports, 2017, 31(12): 73-78.

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http://www.mater-rep.com/EN/10.11896/j.issn.1005-023X.2017.012.016 OR http://www.mater-rep.com/EN/Y2017/V31/I12/73

1 Zhang Jinghuai,Leng Zhe,Zhang Milin,et al. Effect of Ce on microstructure,mechanical properties and corrosion behavior of high-pressure die-cast Mg-4Al-based alloy [J].J Alloys Compd,2011,509(3):1069.
2 Niu Jiexin,Chen Qiurong,Xu Naixin,et al. Effect of combinative addition of strontium and rare earth elements on corrosion resistance of AZ91D magnesium alloy [J]. Trans Nonferr Met Soc China,2008,18(5):1058.
3 Ma Guolong,Han Guang,Liu Xiangfa. Grain refining efficiency of a new Al-1B-0.6C master alloy on AZ63 magnesium alloy [J].J Alloys Compd,2010,491(1):165.
4 Yang M,Liu Y H,Liu J A,et al. Corrosion and mechanical properties of AM50 magnesium alloy after being modified by 1wt.% rare earth element gadolinium [J]. Rare Earths,2014,32(6):558.
5 Srinivasan A,Swaminathan J,Gunjan M K,et al. Effect of intermetallic phases on the creep behavior of AZ91 magnesium alloy [J]. Mater Sci Eng A,2010,527(527):1395.
6 Han Hui,Lü Cheng,Miao Huaming,et al. Fabrication of a new Mg-50%Al₄C₃-6%Ce master alloy and its refinement mechanism on AZ91D alloy [J]. Rare Met Mater Eng,2013,42(1):28.
7 Han Baojun,Gu Dongdong,He Qiong,et al. Fabrication of a novel Mg-RE (Nd, Ce) intermetallic compound coating by molten salt diffusion and its effect on corrosion resistance of magnesium alloys[J]. J Rare Earths,2016,34(7):731.
8 Wang Yingxin,Guan Shaoxang,Wang Jianqiang. Effects of RE on microstructures of Mg-8Zn-4Al-0.3Mn magnesium alloys [J]. Chin J Nonferr Met,2003,13(3):616.
9 Osório W R, Freire C M,Garcia A. The role of macrostructural morphology and grain size on the corrosion resistance of Zn and Al castings [J]. Mater Sci Eng A,2005,402(1-2):22.
10 Jin Yaxu,Tian Yuming,Liu Jiexing,et al. Effect of Al₄C₃ and Ce on the microstructure and mechanical property of ZM5 magnesium alloy [J]. Rare Met Mater Eng,2014,43(7):1774(in Chinese).
金亚旭,田玉明,刘杰兴,等. Al₄C₃和铈复合添加对ZM5镁合金组织和力学性能的影响[J].稀有金属材料与工程,2014,43(7):1774.
11 Wang Bin,Yang Yuansheng,Zhou Jixue,et al. Microstructure refinement of AZ91D alloy solidified with pulsed magnetic field [J]. Trans Nonferr Met Soc China,2008,18(3):536.
12 Wu Guohua,Li Guanqun,Fan Yu,et al. Effect of Y on microstructure and mechanical properties of AZ91D magnesium alloy [J]. Special Cast Nonferr Alloys,2006,26(15):260(in Chinese).
吴国华,李冠群,樊昱,等. Y对AZ91D镁合金组织及力学性能的影响[J].特种铸造及有色合金,2006,26(5):260.
13 Fan Yu,Wu Guohua,Gao Hongtao,et al. Effect of La on the mechanical property and corrosion resistance of AZ91D magnesium alloy [J]. Acta Metall Sin,2006,42(1):35(in Chinese).
樊昱,吴国华,高洪涛,等. La对AZ91D镁合金力学性能和腐蚀性能的影响[J].金属学报2006,42(1):35.
14 Chen T J,Wang R Q,Ma Y,et al. Grain refinement of AZ91D magnesium alloy by Al-Ti-B master alloy and its effect on mechanical properties [J]. Mater Des,2012,34(1):637.
15 He Guangjin. Study on the strengthening mechanism of n-SiCp/AZ91D composites [D].Beijing: Tsinghua University,2012(in Chinese).
何广进. 纳米SiC颗粒增强AZ91D镁基复合材料的强化机制研究[D].北京:清华大学,2012.
16 Zhou Haitao,Zeng Xiaoqin,Liu Wenfa,et al. Effect of Ce on microstructures and mechanical properties of AZ61 wrought magnesium [J]. Chin J Nonferr Met,2004,14(1):100(in Chinese).
周海涛,曾小勤,刘文法,等. 稀土铈对AZ61变形镁合金组织和力学性能的影响[J].中国有色金属学报,2004,14(1):100.
17 Xiao Xiaoling,Luo Chengping,Nie Jianfeng,et al. Morphology and crystallography of β-(Mg₁₇Al₁₂) precipitate in an AZ91 magnesium-aluminum alloy [J]. Acta Metall Sin, 2001,37(1):2(in Chinese).
肖晓玲,罗承萍,聂建峰,等.AZ91Mg-Al合金中β-(Mg₁₇Al₁₂)析出相的形态及其晶体学特征[J].金属学报,2001,37(1):2.
18 Zhang Wei,Wang Yanchun,Zhang Shouting,et al. Study on effect of Ce and La for Mg-Al alloy mechanical properties with valence electron theory [J]. Light Met,2008(8):52(in Chinese).
张伟,王彦春,张寿庭,等. Ce,La对Mg-Al合金力学性能影响的价电子理论研究[J].轻金属,2008(8):52.
19 Zhang Shichang,Wei Bokang,Lin Hantong,et al. Effects of Y,Ce and La on the microstructure of as cast AZ91 magnesium alloy [J]. Chin J Nonferr Met,2001,11(S2):101(in Chinese).
张诗昌,魏伯康,林汉同,等. 钇及铈镧混合稀土对AZ91D镁合金铸态组织的影响[J].中国有色金属学报,2001,11(S2):101.
20 Wang Shaowu,Xia Changqing,Wu Anru. Effects of Ce on the microstructure and mechanical properties of AZ31 magnesium alloy [J]. Mining Metall Eng,2006,26(4):77(in Chinese).
王少武,夏长清,吴安如. 稀土铈对AZ31镁合金显微组织和力学性能的影响[J].矿冶工程,2006,26(4):77.
21 Jiang Bailing, Zhang Jiyuan, Xia Pengju. Effects of Ce on the divorced eutectic β phase in the AZ31 magnesium alloy [J]. Special Cast Nonferr Alloys,2008,28(2):101(in Chinese).
蒋百灵,张继源,夏鹏举.Ce对AZ31镁合金中离异共晶β相的影响[J].特种铸造及有色合金,2008,28(2):101.
22 Lu Y Z,Wang Q D,Zeng X Q,et al. Effects of rare earths on the microstructure, properties and fracture behavior of Mg-Al Alloys [J]. Mater Sci Eng A,2000,278(1-2):67.
23 Hu Yong,Rao Li,Li Qiuping. Effect of Ce content on microstructure and properties of AZ91D magnesium alloy [J].Trans Mater Heat Treat, 2014,35(4):124(in Chinese).
胡勇,饶丽,黎秋萍. 稀土Ce含量对AZ91D镁合金组织和性能的影响[J].材料热处理学报,2014,35(4):124.
24 边秀房,刘相法,马家骥. 铸造金属遗传学[M].济南:山东科学技术出版社,1998.