放电等离子烧结制备石墨烯增强7075铝基复合材料的显微组织与力学性能
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摘要
通过放电等离子烧结(SPS)技术制备了不同石墨烯含量的7075铝合金基复合材料,测试了石墨烯含量对复合材料力学性能的影响。结果表明,铝基复合材料的硬度、压缩强度、屈服强度均随石墨烯的加入而增加,在石墨烯质量分数达到1.0%时获得最大值;石墨烯与金属之间的界面为纯净的冶金结合,石墨烯与金属原子之间为原子扩散连接;SPS烧结过程中未形成有害的Al_4C_3相;随着石墨烯含量的进一步增加(达到3.0%～5.0%),铝基复合材料的力学性能反而会随石墨烯的增加而不断恶化,石墨烯含量的持续增加会使石墨烯片层间的团聚愈发严重,这是复合材料力学性能不断恶化的主要原因。
Graphene-reinforced 7075 aluminum alloy composites with different contents of graphene were prepared by spark plasma sintering(SPS). The structure and mechanical properties of the composites were investigated. Testing results showed that the hardness, compressive strength, and yield strength of the composites were improved with the addition of 1.0% graphene. A clean, strong interface was formed between graphene and the metal matrix via metallurgical bonding on the atomic scale. Harmful aluminum carbide (Al_4C_3) was not formed during SPS processing. Further addition of graphene(3.0%–5.0%) deteriorated the mechanical properties of the composites.The agglomeration of graphene plates was exacerbated with increasing graphene content, which was the main reason for this deterioration.
Graphene-reinforced 7075 aluminum alloy composites with different contents of graphene were prepared by spark plasma sintering(SPS). The structure and mechanical properties of the composites were investigated. Testing results showed that the hardness, compressive strength, and yield strength of the composites were improved with the addition of 1.0% graphene. A clean, strong interface was formed between graphene and the metal matrix via metallurgical bonding on the atomic scale. Harmful aluminum carbide (Al_4C_3) was not formed during SPS processing. Further addition of graphene(3.0%–5.0%) deteriorated the mechanical properties of the composites.The agglomeration of graphene plates was exacerbated with increasing graphene content, which was the main reason for this deterioration.
引文
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[19]张文毓·铝基复合材料国内外技术水平及应用状况[J]·航空制造技术,2015, 58(3):82-85.ZHANG Wenyu·Domestic and foreign technical level and application condition of aluminum matrix composites[J]·Aeronautical Manufacturing Technology,2015, 58(3):82-85·
[20]张冀,陈金梅,冉申,等·碳化硅增强金属基复合材料的新型制备工艺[J]·航空制造技术,2014,57(6):109-112.ZHANG Ji, CHEN Jinmei, RAN Shen·et al·New preparation technology of silicon carbide particles reinforced metal matrix composites[J]. Aeronautical Manufacturing Technology,2014,57(6):109-112.
[2] BARTOLUCCI S F, PARAS J, RAFIEE M A, et al·Graphenealuminum nanocomposites[J]·Materials Science and Engineering:A,2011, 528(27):7933-7937.
[3] PEREZ-BUSTAMANTE R, BOLANOS-MORALES D,BONILLA-MARTINEZ J, et al. Microstructural and hardness behavior of graphene-nanoplatelets/aluminum composites synthesized by mechanical alloying[J]·Journal of Alloys&Compounds, 2014, 615:578-582-
[4] LI J L, XIONG Y C, WANG X D, et al·Microstructure and tensile properties of bulk nanostructured aluminum/graphene composites prepared via cryomilling[J]-Materials Science and Engineering:A, 2015,626:400-405·
[5] RASHAD M,PAN F,TANG A,et al. Synergetic effect of graphene-nanoplatelets(GNPs)and multi-walled carbon nanotube(MWCNTs)on mechanical properties of pure magnesium[J]·Journal of Alloys and Compounds,2014, 603:111-118.
[6] JEON C, JEONG Y, SEO J, et al·Material properties of graphene/aluminum metal matrix composites fabricated by friction stir processing[J]·International Journal of Precision Engineering and Manufacturing,2014, 15(6):1235-1239·
[7] LEE B, KOO M Y, JIN S H, et al·Simultaneous strengthening and toughening of reduced graphene oxide/alumina composites fabricated by molecular-level mixing process[J]·Carbon, 2014, 78:212-219·
[8] DUTKIEWICZ J,OZGA P,MAZIARA W,et al·Microstructure and properties of bulk copper matrix composites strengthened with various kinds of graphene-nanoplatelets[J]·Materials Science and Engineering:A, 2015, 628:124-134.
[9] TIAN W M, LI S M, WANG B,et al. Graphene-reinforced aluminum matrix composites prepared by spark plasma sintering[J]·International Journal of Minerals, Metallurgy and Materials, 2016, 23(6):723-729.
[10]李国辉,刘勇,国秀花,等·放电等离子烧结制备TiB2/Cu复合材料的组织和性能[J]·材料热处理学报,2017,38(5):13-18.LI Guohui, LIU Yong, GUO Xiuhua, et al. Microstructure and properties of TiB2/Cu composites prepared by spark plasma sintering[J]·Transactions of Materials and Heat Treatment,2017, 38(5):13-18-
[11]汤迁,武世文,赵炜康,等·SPS温度对铜/镍粉/304不锈头组织与剪切强度的影响[J].航空制造技术,2017,60(12):38-42, 56.TANG Qian, WU Shiwen, ZHAO Weikang, et al. Influence of SPS temperature on microstructure and shear strength of copper/nickel powder/304 stainless steel joints[J]·Aeronautical Manufacturing Technology,2017, 60(42):38-42, 56·
[12] BALANDIN A A, GHOSH S, BAO W, et al·Superior thermal conductivity of single-layer graphene[J]·Nano Letters,2008, 8(3):902-907·
[13] BASTWROS M,HIM G,ZHU C,et al. Effect of ball milling on graphene reinforced A16061 composite fabricated by semi-solid sintering[J]·Composites Part B:Engineering, 2014, 60:111-118.
[14] FATTAHI M,GHOLAMI A R,EYNALVANDPOUR A,et al·Improved microstructure and mechanical properties in gas tungsten arc welded aluminum joints by using graphene nanosheets/aluminum composite filler wires[J]. Micron, 2014, 64:20-27·
[15] CHEN L Y,KONISHI H, FEHRENBACHER A, et al·Novel nanoprocessing route for bulk graphene nanoplatelets reinforced metal matrix nanocomposites[J]. Scripta Materialia, 2012, 67(1):29-32.
[16]李勋,柏帆,付余,等·高体积比铝基SiC复合材料的铣磨试验研究[J]·航空制造技术,2017, 60(1/2):24-28·LI Xun, BAI Fan, FU Yu, et al·Experimental study on mill-grinding of high volume fraction SiCp/Al metal matrix composites[J]·Aeronautical Manufacturing Technology,2017, 60(1/2):24-28·
[17]聂俊辉,樊建中,魏少华,等·航空用粉末冶金颗粒增强铝基复合材料研制及应用[J]·航空制造技术,2017,60(16):26-36·NIE Junhui, FAN Jianzhong, WEI Shaohua, et al·Research and application of powder metallurgy particle reinforced aluminum matrix composite used in aviation[J]·Aeronautical Manufacturing Technology,2017, 60(16):26-36·
[18]张冰玉,王岭,焦健,等·界面层对SiCf/SiC复合材料力学性能及氧化行为的影响[J]·航空制造技术,2017,60(12):78-83.ZHANG Bingyu, WANG Ling, JIAO Jian, et al. Effect of interface on mechanical property and oxidation behavior of SIC/SIC composites[J]·Aeronautical Manufacturing Technology,2017, 60(12):78-83-
[19]张文毓·铝基复合材料国内外技术水平及应用状况[J]·航空制造技术,2015, 58(3):82-85.ZHANG Wenyu·Domestic and foreign technical level and application condition of aluminum matrix composites[J]·Aeronautical Manufacturing Technology,2015, 58(3):82-85·
[20]张冀,陈金梅,冉申,等·碳化硅增强金属基复合材料的新型制备工艺[J]·航空制造技术,2014,57(6):109-112.ZHANG Ji, CHEN Jinmei, RAN Shen·et al·New preparation technology of silicon carbide particles reinforced metal matrix composites[J]. Aeronautical Manufacturing Technology,2014,57(6):109-112.