Ce对Mg-5Si合金中初生Mg2Si相变质的影响

doi:10.11901/1005.3093.2019.080

材料研究学报

2019, Vol. 33

Issue (9): 683-690 DOI: 10.11901/1005.3093.2019.080

研究论文

本期目录 | 过刊浏览

Ce对Mg-5Si合金中初生Mg₂Si相变质的影响

范晋平(

),王浩,武改林,蒋一锋,王晧,刘春莲

太原理工大学材料科学与工程学院太原 030024

Modifying Effect of Ce Addition on Primary Mg₂Si Phase in Mg-5Si Alloy

FAN Jinping(

),WANG Hao,WU Gailin,JIANG Yifeng,WANG Hao,LIU Chunlian

College of Materials Science and Engineering，Taiyuan University of Technology，Taiyuan 030024, China

引用本文:

范晋平,王浩,武改林,蒋一锋,王晧,刘春莲. Ce对Mg-5Si合金中初生Mg₂Si相变质的影响[J]. 材料研究学报, 2019, 33(9): 683-690.
Jinping FAN, Hao WANG, Gailin WU, Yifeng JIANG, Hao WANG, Chunlian LIU. Modifying Effect of Ce Addition on Primary Mg₂Si Phase in Mg-5Si Alloy[J]. Chinese Journal of Materials Research, 2019, 33(9): 683-690.

全文: PDF(13365 KB) HTML

摘要:

利用扫描电子显微镜(SEM)、能量色散光谱仪(EDS)、光学显微镜(OM)、ICP光谱仪及X射线衍射(XRD)等手段研究了Ce对Mg-5Si合金中Mg₂Si相变质的影响。结果表明：添加不同量的Ce使Mg-5Si合金中的初生Mg₂Si相的形貌从粗大的树枝状变为多边形状，共晶Mg₂Si由汉字状变为了细纤维状或点状。Ce的添加量为1.2%时变质效果最佳，初生Mg₂Si 的尺寸从48 μm减小到 9 μm或更小。同时，在1.6% Ce变质的合金中发现了短棒状的Mg-Si-Ce化合物。Ce促进了Mg₂Si的形核，并抑制了Mg₂Si的各向异性生长。

关键词 ：金属材料, 耐热镁合金, 变质, Mg₂Si, Ce

Abstract：

The modifying effect of Ce addition on primary Mg₂Si phase in Mg-5Si alloy was investigated by scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), optical microscopy (OM), ICP spectrometry and X-ray diffraction (XRD). The results show that the morphology of the primary Mg₂Si phase changed from coarse dendritic shape to polygonal shape with the addition of various amount of Ce. The eutectic Mg₂Si phase changed from Chinese-characters shape to fine fiber shape or dot shape. The optimum modification effect was obtained when the amount of Ce addition was 1.2%. The size of the primary Mg₂Si decreased from 48 μm to 9 μm or less. Whilst, short rod-shaped Mg-Si-Ce compounds were found in the alloy with 1.6% Ce. Ce promotes the nucleation of Mg₂Si, and inhibits its anisotropic growth.

Key words： metallic materials heat resistant magnesium alloy modification Mg₂Si Ce

收稿日期: 2019-01-23

ZTFLH:

TG430.1030

基金资助:太原理工大学技术开发项目(RH19200007);太原理工大学本科教学改革项目(YB009);太原理工大学2018年度校公派（院级资助）出国境

作者简介: 范晋平，女，1974年生，博士

	服务

	把本文推荐给朋友
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	范晋平
	王浩
	武改林
	蒋一锋
	王晧
	刘春莲
44.8K

链接本文:

https://www.cjmr.org/CN/10.11901/1005.3093.2019.080 或 https://www.cjmr.org/CN/Y2019/V33/I9/683

表1 合金的化学成分

图1 Mg-5Si合金的XRD图谱

图2 Mg-5Si合金的SEM显微照片

图3 不同Ce添加量变质Mg-5Si合金的光学显微照片

图4 不同Ce含量合金中初生Mg2Si相颗粒的平均尺寸

图5 不同Ce添加量变质Mg-5Si合金的SEM显微图片

图6 (a)1.6%Ce变质合金的SEM显微照片和(b)区域A中白色短棒状相的EDS分析

图7 未变质的初生Mg2Si相颗粒的SEM照片(a)，用1.6%Ce变质的初生Mg2Si颗粒的SEM照片(b)和(b)中C区域放大的变质初生Mg2Si颗粒SEM照片(c)

图8 磨损后八面体初生Mg2Si相的不同二维形貌示意图

图9 (a)1.2% Ce变质初生Mg2Si相的SEM照片及其(b)EDS线扫描结果、(c)1.6% Ce变质初生Mg2Si相的SEM照片及其(d)EDS线扫描

图10 初生Mg2Si颗粒生长的示意图

1	KondoriB, MahmudiR. Effect of Ca additions on the microstructure and creep properties of a cast Mg-Al-Mn magnesium alloy [J]. Mater. Sci. Eng., 2017, 700A: 438
2	ChenK, LiZ Q. Effect of co-modification by Ba and Sb on the microstructure of Mg2Si/Mg-Zn-Si composite and mechanism [J]. J. Alloys Compd., 2014, 592: 196
3	LiD, ChenY L, HuS P, et al. Effect of Gd addtion on microstructure and mechanical properties of wrought AZ31 Magnesium alloys [J]. Chin. J. Mater. Res., 2014, 28: 579
3	李栋, 陈雨来, 胡水平等. 添加Gd对变形镁合金AZ31组织与力学性能的影响 [J]. 材料研究学报, 2014, 28: 579
4	FanJ P, XuB S, WangS B, et al. Effects of Y on elevated temperature mechanical properties of Mg-8Al-2Sr alloy [J]. Chin. J. Mater. Res., 2012, 26: 132
4	范晋平, 许并社, 王社斌等. Y对Mg-8Al-2Sr镁合金高温力学性能的影响 [J]. 材料研究学报, 2012, 26: 132
5	CongM Q, LiZ Q, LiuJ S, et al. Effect of Ca on the microstructure and tensile properties of Mg-Zn-Si alloys at ambient and elevated temperature [J]. J. Alloys Compd., 2012, 539: 168
6	ChenZ H. Heat Resistant Magnesium Alloy [M]. Beijing: Chemical Industry Press, 2007
6	陈振华. 耐热镁合金 [M]. 北京: 化学工业出版社, 2007
7	ZhangE L, WeiX S, YangL, et al. Effect of Zn on the microstructure and mechanical properties of Mg-Si alloy [J]. Mater. Sci. Eng., 2010, 527A: 3195
8	LiC, WuY Y, LiH, et al. Morphological evolution and growth mechanism of primary Mg2Si phase in Al-Mg2Si alloys [J]. Acta Mater., 2011, 59: 1058
9	YeL Y, HuJ L, TangC P, et al. Modification of Mg2Si in Mg-Si alloys with gadolinium [J]. Mater. Charact., 2013, 79: 1
10	JiangQ C, WangH Y, WangY, et al. Modification of Mg2Si in Mg-Si alloys with yttrium [J]. Mater. Sci. Eng., 2005, 392A: 130
11	ZhouG D, YeX Z, WuN Z. Chemical Elements Survey [M]. Beijing: Science Press, 2012
11	周公度, 叶宪曾, 吴念祖. 化学元素综论 [M]. 北京: 科学出版社, 2012
12	KumarK K A, ViswanathA, PillaiU T S, et al. Influence of neodymium addition on the microstructure, mechanical and thermal properties of Mg-Si alloys [J]. Proced. Eng., 2013, 55: 103
13	HuJ L, TangC P, ZhangX M, et al. Modification of Mg2Si in Mg-Si alloys with neodymium [J]. Trans. Nonferrous Met. Soc. China, 2013, 23: 3161
13	胡继龙, 唐昌平, 张新明等. 稀土元素Nd对过共晶Mg-Si合金中Mg2Si粒子的变质作用 [J]. 中国有色金属学报(英文版), 2013, 23: 3161
14	Kayg?s?zY, MarasliN. Hardness and electrical resistivity of Al-13wt% Mg2Si pseudoeutectic alloy [J]. Russian J. Non-Ferr. Met., 2017, 58: 15
15	MirshahiF, MeratianM, PanjepourM. Microstructural and mechanical behavior of Mg/Mg2Si composite fabricated by a directional solidification system [J]. Mater. Sci. Eng., 2011, 528A: 8319
16	ShengS D, ChenD, ChenZ H. Effects of Si addition on microstructure and mechanical properties of RS/PM (rapid solidification and powder metallurgy) AZ91 alloy [J]. J. Alloys Compd., 2009, 470: L17
17	QinQ D, ZhaoY G. Nonfaceted growth of intermetallic Mg2Si in Al melt during rapid solidification [J]. J. Alloys Compd., 2008, 462: L28
18	GanW M, WuK, ZhengM Y, et al. Microstructure and mechanical property of the ECAPed Mg2Si/Mg composite [J]. Mater. Sci. Eng., 2009, 516A: 283
19	ChenK H, LiangW, WangS Q, et al. Microstructure and properties of Al-Mg2Si alloys after equal channel angular pressing [J]. Rare Met. Mater. Eng., 2010, 39: 352
19	陈克华, 梁伟, 王顺旗等. 等通道转角挤压Al-Mg2Si合金的组织与性能研究 [J]. 稀有金属材料与工程, 2010, 39: 352
20	LuL, ThongK K, GuptaM. Mg-based composite reinforced by Mg2Si [J]. Compos. Sci. Technol., 2003, 63: 627
21	GhandvarH, IdrisM H, AhmadN. Effect of hot extrusion on microstructural evolution and tensile properties of Al-15%Mg2Si-xGd in-situ composites [J]. J. Alloys Compd., 2018, 751: 370
22	LotfpourM, EmamyM, AllamehS H, et al. Effect of hot extrusion on microstructure and tensile properties of Ca modified Mg-Mg2Si composite [J]. Proced. Mater. Sci., 2015, 11: 38
23	GhandvarH, IdrisM H, AhmadN, et al. Effect of gadolinium addition on microstructural evolution and solidification characteristics of Al-15%Mg2Si in-situ composite [J]. Mater. Charact., 2018, 135: 57
24	GhorbaniM R, EmamyM, KhorshidiR, et al. Effect of Mn addition on the microstructure and tensile properties of Al-15%Mg2Si composite [J]. Mater. Sci. Eng., 2012, 550A: 191
25	LiC, WuY P, LiH, et al. Effect of Ni on eutectic structural evolution in hypereutectic Al-Mg2Si cast alloys [J]. Mater. Sci. Eng., 2010, 528A: 573
26	ZuoM, HanH M, WangD T, et al. The heterogeneous nucleation behavior of Al-Hf-P master alloy and its influence on the refinement of Mg2Si phase in Mg2Si/Al composites [J]. Result. Phys., 2017, 7: 2012
27	KhorshidiR, Honarbakhsh-RaoufA, MahmudiR. Effect of minor Gd addition on the microstructure and creep behavior of a cast Al-15Mg2Si in situ composite [J]. Mater. Sci. Eng., 2018, 718A: 9
28	WangH Y, JiangQ C, MaB X, et al. Modification of Mg2Si in Mg-Si alloys with K2TiF6, KBF4 and KBF4+K2TiF6 [J]. J. Alloys Compd., 2005, 387: 105
29	ChengR J, DongH W, LiuW J, et al. Effect of Al- and Ce-content on microstructure of Mg-Al magnesium alloys [J]. Chin. J. Mater. Res., 2017, 31: 737
29	程仁菊, 董含武, 刘文君等. Al和Ce的含量对Mg-Al合金组织的影响 [J]. 材料研究学报, 2017, 31: 737
30	LiuC M, ZhuX R, ZhouH T. Magnesium Alloy Phase Diagram Manual [M]. Changsha: Central South University Press, 2006
30	刘楚明, 朱秀荣, 周海涛. 镁合金相图集 [M]. 长沙: 中南大学出版社, 2006
31	GuoE J, MaB X, WangL P. Modification of Mg2Si morphology in Mg-Si alloys with Bi [J]. J. Mater. Process. Technol., 2008, 206: 161
32	DuJ, LuX Y, LiW F. Effect of Ce on modification of primary Mg2Si crystals in hypereutectic Mg-Si alloy [J]. J. Mater. Eng., 2011, (6): 1
32	杜军, 吕信裕, 李文芳. 稀土Ce对过共晶Mg-Si合金中初生Mg2Si相变质的影响 [J]. 材料工程, 2011, (6): 1)
33	MaB X, WangL P, GuoE J. Modification effect of lanthanum on primary phase Mg2Si in Mg-Si alloys [J]. J. Rare Earths, 2008, 26: 105
33	马宝霞, 王丽萍, 郭二军. 镧对Mg-Si合金中Mg2Si相变质的影响 [J]. 中国稀土学报, 2008, 26: 105
34	YuW H, ZhangY, JiangA L, et al. Multi-step nucleation in Al-Si liquids catalyzed by a Ni-Si master alloy [J]. Mater. Des., 2017, 132: 385
35	CuiZ Q, TanY C. Metallurgy and Heat Treatment 2nd ed. [M].Beijing: China Machine Press, 2011
35	崔忠圻, 覃耀春. 金属学与热处理第2版. [M]. 北京: 机械工业出版社, 2011
36	QinQ D, ZhaoY G, ZhouW, et al. Effect of phosphorus on microstructure and growth manner of primary Mg2Si crystal in Mg2Si/Al composite [J]. Mater. Sci. Eng., 2007, 447A: 186

[1]	毛建军, 富童, 潘虎成, 滕常青, 张伟, 谢东升, 吴璐. AlNbMoZrB系难熔高熵合金的Kr离子辐照损伤行为[J]. 材料研究学报, 2023, 37(9): 641-648.
[2]	宋莉芳, 闫佳豪, 张佃康, 薛程, 夏慧芸, 牛艳辉. 碱金属掺杂MIL125的CO₂ 吸附性能[J]. 材料研究学报, 2023, 37(9): 649-654.
[3]	赵政翔, 廖露海, 徐芳泓, 张威, 李静媛. 超级奥氏体不锈钢24Cr-22Ni-7Mo-0.4N的热变形行为及其组织演变[J]. 材料研究学报, 2023, 37(9): 655-667.
[4]	邵鸿媚, 崔勇, 徐文迪, 张伟, 申晓毅, 翟玉春. 空心球形AlOOH的无模板水热制备和吸附性能[J]. 材料研究学报, 2023, 37(9): 675-684.
[5]	幸定琴, 涂坚, 罗森, 周志明. C含量对VCoNi中熵合金微观组织和性能的影响[J]. 材料研究学报, 2023, 37(9): 685-696.
[6]	欧阳康昕, 周达, 杨宇帆, 张磊. 含LPSO相Mg-Y-Er-Ni合金的组织和拉伸性能[J]. 材料研究学报, 2023, 37(9): 697-705.
[7]	徐利君, 郑策, 冯小辉, 黄秋燕, 李应举, 杨院生. 定向再结晶对热轧态Cu71Al18Mn11合金的组织和超弹性性能的影响[J]. 材料研究学报, 2023, 37(8): 571-580.
[8]	熊诗琪, 刘恩泽, 谭政, 宁礼奎, 佟健, 郑志, 李海英. 固溶处理对一种低偏析高温合金组织的影响[J]. 材料研究学报, 2023, 37(8): 603-613.
[9]	刘继浩, 迟宏宵, 武会宾, 马党参, 周健, 徐辉霞. 喷射成形M3高速钢热处理过程中组织的演变和硬度偏低问题[J]. 材料研究学报, 2023, 37(8): 625-632.
[10]	由宝栋, 朱明伟, 杨鹏举, 何杰. 合金相分离制备多孔金属材料的研究进展[J]. 材料研究学报, 2023, 37(8): 561-570.
[11]	任富彦, 欧阳二明. g-C₃N₄ 改性Bi₂O₃ 对盐酸四环素的光催化降解[J]. 材料研究学报, 2023, 37(8): 633-640.
[12]	王昊, 崔君军, 赵明久. 镍基高温合金GH3536带箔材的再结晶与晶粒长大行为[J]. 材料研究学报, 2023, 37(7): 535-542.
[13]	刘明珠, 樊娆, 张萧宇, 马泽元, 梁城洋, 曹颖, 耿仕通, 李玲. SnO₂ 作散射层的光阳极膜厚对量子点染料敏化太阳能电池光电性能的影响[J]. 材料研究学报, 2023, 37(7): 554-560.
[14]	秦鹤勇, 李振团, 赵光普, 张文云, 张晓敏. 固溶温度对GH4742合金力学性能及γ' 相的影响[J]. 材料研究学报, 2023, 37(7): 502-510.
[15]	刘天福, 张滨, 张均锋, 徐强, 宋竹满, 张广平. 缺口应力集中系数对TC4 ELI合金低周疲劳性能的影响[J]. 材料研究学报, 2023, 37(7): 511-522.

Viewed

Full text

Abstract

Cited

Shared

Discussed