贺兵,胡耀波,姚青山

• 1:重庆大学材料科学与工程学院
• 2:国家镁合金材料工程技术研究中心

摘要(Abstract)：

轧制前,对AZ80镁合金挤压板材在175℃分别时效75、160、200和240 min,接着在350℃轧制,最后在175℃进行1 h的退火处理。采用背散射电子衍射技术、X射线衍射和拉伸试验研究了预时效处理对退火态AZ80镁合金轧制板材组织与力学性能的影响。结果表明:预时效时间为200 min时,合金晶粒尺寸最小,基面织构强度较低,大角度晶界分数增加,合金力学性能最优,其屈服强度、抗拉强度和断裂总伸长率分别为315 MPa、377 MPa和16.2%。

关键词(KeyWords)： AZ80镁合金;预时效;退火;显微组织;力学性能

Abstract:

Keywords:

基金项目(Foundation): 国家重点研发计划项目(2016YFB0101606);; 重庆大学大型设备开放基金(201712150105,201712150106)

作者(Author): 贺兵,胡耀波,姚青山

DOI: 10.13289/j.issn.1009-6264.2018-0327

参考文献(References)：

• [1] 陈振华.变形镁合金[M].北京:化学工业出版社,2005.
• [2] ASM International.Magnesium and Magnesium Alloy[M].Ohio:Metal Park,1999.
• [3] 唐获,王丹,江海涛,等.异步轧制对AZ31镁合金组织及高温塑性的影响[J].塑性工程学报,2013,20(2):78-83.TANG Di,WANG Dan,JIANG Hai-tao,et al.Effects of differential speed rolling process on microstructure and plastic deformation of magnesium alloy rolled sheets[J].Journal of Plasticity Engineering,2013,20(2):78-83.
• [4] 文九巴,王浩,贺俊光,等.Sm对AZ80镁合金组织和力学性能的影响[J].材料热处理学报,2014,35(2):47-50.WEN Jiu-ba,WANG Hao,HE Jun-guang,et al.Influence of Sm addition on microstructure and mechanical properties of AZ80 magnesium alloys[J].Transactions of Materials and Heat Treatment,2014,35(2):47-50.
• [5] 王军,朱秀荣,徐永东,等.稀土Ce 和 Y 对 AZ80 镁合金组织和力学性能的影响[J].中国有色金属学报,2014,24(1):25-34.WANG Jun,ZHU Xiu-rong,XU Yong-dong,et al.Effects of rare-earth Ce and Y on microstructure and mechanical properties of AZ80 Mg alloys[J].The Chinese Journal of Nonferrous Metals,2014,24(1):25-34.
• [6] 李伟东,周海涛,陈和兴,等.轧制变形量对 AZ80 镁合金组织与性能的影响[J].热加工工艺,2012,41(4):22-25.LI Wei-dong,ZHOU Hai-tao,CHEN He-xing,et al.Effect of rolling deformation on microstructure and properties of AZ80 alloy[J].Hot Working Technology,2012,41(4):22-25.
• [7] 董丽君,王琼,唐博文,等.热处理对Mg-8Gd-3Y-0.5Zr合金组织和力学性能的影响[J].湖南工程学院学报,2012,22(1):27-30.DONG Li-jun,WANG Qiong,TANG Bo-wen,et al.Effect of heat treatment on microstructure and mechanical properties of Mg-8Gd-3Y-Zr magnesium alloy[J].Journal of Hunan Institute of Engineering,2012,22(1):27-30.
• [8] 唐伟,韩恩厚,徐永波,等.热处理对AZ80镁合金结构及性能的影响[J].金属学报,2005,41(11):1199-1206.TANG Wei,HAN En-hou,XU Yong-bo,et al.Effect of heat treatment on microstructure and properties of AZ80 magnesium alloy[J].Acta Metallurgica Sinica,2005,41(11):1199-1206.
• [9] 徐文婷,卢雅琳,周东帅.热处理工艺对 AZ80 镁合金组织和硬度的影响[J].热加工工艺,2017,46(8):237-239.XU Wen-ting,LU Ya-lin,ZHOU Dong-shuai.Effect of heat treatment process on microstructure and hardness of AZ80 magnesium alloy[J].Hot Working Technology,2017,46(8):237-239.
• [10] Sun J,Zhang D F,Tang T,et al.Effect of aging treatment before extrusion on microstructure and mechanical properties of AZ80 magnesium alloy[J].Rare Metal Materials and Engineering,2017,46(7):1768-1774.
• [11] Li Z,Dong J,Zeng X Q,et al.Influence of Mg17Al12 intermetallic compounds on the hot extruded microstructures and mechanical properties of Mg-9Al-1Zn alloy[J].Materials Science and Engineering A,2007,466(1):134-139.
• [12] Jung J G,Park S H,Yu H,et al.Improved mechanical properties of Mg-7.6Al-0.4Zn alloy through aging prior to extrusion[J].Scripta Materialia,2014,93:8-11.
• [13] 张路,房灿峰,刘晓滕,等.β-Mg17Al12相对轧制态AZ80镁合金组织和性能的影响[J].特种铸造及有色合金,2017,37(4):369-372.ZHANG Lu,FANG Can-feng,LIU Xiao-teng,et al.Effects of β-Mg17Al12 morphology on microstructure and mechanical properties of as-rolled AZ80 alloy[J].Special Casting and Nonferrous Alloys,2017,37(4):369-372.
• [14] 杨海波,胡水平.轧制参数对 AZ31 镁合金织构和室温成形性能的影响[J].中国有色金属学报,2014,24(8):1953-1959.YANG Hai-bo,HU Shui-ping.Influence of rolling parameters on texture and formability of rolled AZ31 magnesium alloys at room temperature[J].The Chinese Journal of Nonferrous Metals,2014,24(8):1953-1959.
• [15] Robson J D,Henry D T,Davis B.Particle effects on recrystallization in magnesium-manganese alloys:Particle-stimulated nucleation[J].Acta Materialia,2009,57:2739-2747.
• [16] 彭聪辉,常辉,胡锐,等.Haynes230高温合金的静态再结晶动力学[J].航空材料学报,2011,31(2):8-12.PENG Cong-hui,CHANG Hui,HU Rui,et al.Static recrystallization kinetics of Haynes 230 superalloy[J].Journal of Aeronautical Materials,2011,31(2):8-12.
• [17] 姜俊,李慧中,欧阳杰,等.多向锻造 AZ80A 镁合金的静态再结晶行为[J].中国有色金属学报,2014,24(9):2205-2212.JIANG Jun,LI Hui-zhong,OUYANG Jie,et al.Static recrystallization behavior of multi-directional forged AZ80A magnesium alloy[J].The Chinese Journal of Nonferrous Metals,2014,24(9):2205-2212.
• [18] 陈振华,夏伟军,程永奇,等.镁合金织构与各向异性[J].中国有色金属学报,2005,15(1):1-11.CHEN Zhen-hua,XIA Wei-jun,CHEN Yong-qi,et al.Texture and anisotropy in magnesium alloys[J].The Chinese Journal of Nonferrous Metals,2005,15(1):1-11.
• [19] 唐伟琴,张少睿,范晓慧,等.AZ31镁合金的织构对其力学性能的影响[J].中国有色金属学报,2010,20(3):371-377.TANG Wei-qin,ZHANG Shao-rui,FAN Xiao-hui,et al.Texture and its effect on mechanical properties of AZ31 magnesium alloy[J].The Chinese Journal of Nonferrous Metals,2010,20 (3):371-377.
• [20] 尹志民,何振波,杨进,等.铝-镁-钪合金板材晶粒结构、织构和力学性能平面各向异性[J].轻合金加工技术,2007,35(5):48-52.YIN Zhi-min,HE Zhen-bo,YANG Jin,et al.Grain structure,texture and planar anisotropy of Al-Mg-Sc alloy plate[J].Light Alloy Fabrication Technology,2007,35(5):48-52.
• [21] Wang Y N,Huang J C.Texture analysis in hexagonal materials[J].Materials Chemistry and Physics,2003,81:11-26.
• [22] Kaiser F,Letzig D,Bohlen J,et al.Anisotropic properties of magnesium sheet AZ31[J].Materials Science Forum,2003,419/422:315-320.
• [23] Wu S K,Chou T S,Wang J Y.The deformation texture in AZ31B magnesium alloy[J].Materials Science Forum,2003,419/422:527-532.
• [24] 丁文江,靳丽,吴文祥,等.变形镁合金中的织构及其优化设计[J].中国有色金属学报,2011,21(10):2371-2381.DING Wen-jiang,JIN Li,WU Wen-xiang,et al.Texture and texture optimization of wrought Mg alloy[J].The Chinese Journal of Nonferrous Metals,2011,21(10):2371-2381.
• [25] Styczynski A,Hartig C,Bohlen J,et al.Cold rolling textures in AZ31 wrought magnesium alloy[J].Scripta Materialia,2004,50:943-947.
• [26] Pérez -Prado M T,Valle J A D,Ruano O A.Effect of sheet thickness on the microstructural evolution of an Mg AZ61 alloy during large strain hot rolling[J].Scripta Materialia,2004,50:667-671.
• [27] Koike J,Kobayashi T,Mukai T,et al.The activity of non-basal slip systems and dynamic recovery at room temperature in fine-grained AZ31B magnesium alloys[J].Acta Materialia,2003,51:2055-2065.
• [28] Yoo M H,Agnew S R,Morris J R,et al.Non-basal slip systems in HCP metals and alloys:source mechanisms[J].Materials Science and Engineering A,2001(319/321):87-92.

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