原位自生Fe_3Al增强Cu基复合材料的组织和性能
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摘要
通过XRD、OM、SEM、TEM和拉伸试验等手段,研究了不同Fe_3Al含量和变形工艺对原位自生Fe_3Al增强Cu基复合材料显微组织和力学性能的影响。结果表明,当Fe_3Al含量增加时,复合材料晶粒明显细化;第二相以纳米尺度的Fe_3Al为主,且均匀分布在Cu基体中;经过冷轧和退火处理后,晶粒进一步细化,同时强度得到提升。Fe和Al含量分别为10%的复合材料在经过90%冷轧变形和350℃×1h退火处理后,显微硬度(HV)和抗拉强度分别达到272和871MPa。
The effects of Fe_3Al reinforced particles and deformation technology on microstructures and mechanical properties of the Fe_3Al/Cu composites fabricated by in-situ reaction were investigated by XRD,OM,SEM,TEM and tensile testing.The results show that with the increase of Fe_3Al contents,the grain size is decreased.The nanoscale Fe_3Al particles are uniformly distributed in Cu matrix.After cold rolling and annealing,obvious grain refinement and significant increment in strength are observed.After 90%cold-rolling reduction,the hardness and strength of 10% Fe_3Al/Cu composite containing 10% Fe and Al elements reach 272 HV and 871 MPa,respectively.
The effects of Fe_3Al reinforced particles and deformation technology on microstructures and mechanical properties of the Fe_3Al/Cu composites fabricated by in-situ reaction were investigated by XRD,OM,SEM,TEM and tensile testing.The results show that with the increase of Fe_3Al contents,the grain size is decreased.The nanoscale Fe_3Al particles are uniformly distributed in Cu matrix.After cold rolling and annealing,obvious grain refinement and significant increment in strength are observed.After 90%cold-rolling reduction,the hardness and strength of 10% Fe_3Al/Cu composite containing 10% Fe and Al elements reach 272 HV and 871 MPa,respectively.
引文
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[2]CORREIA J B,DAVIES H A,SELLARS C M.Strengthening in rapidly solidified age hardened CuCr and CuCrZr alloys[J].Acta Materialia,1997,45(1):177-190.
[3]张红霞,胡树兵,涂江平.颗粒增强Cu基复合材料的研究进展[J].材料科学与工艺,2005,13(4):357-360.
[4]尹艳红,谢辉,田爱堂.超声场辅助制备氧化铝增强Cu基复合材料的研究[J].特种铸造及有色合金,2013,33(2):104-108.
[5]汪才良,朱定一,卢铃.金属间化合物Fe3Al的研究进展[J].材料导报,2007,21(3):67-69.
[6]MCKAMEY C G,HORTON J A,LIU C T.Effect of chromium on properties of Fe3Al[J].Journal of Materials Research,1989,4(5):1 156-1 163.
[7]范润华,刘英才,尹衍生.Fe3Al金属间化合物强韧化研究进展[J].材料科学与工程学报,1997,15(4):47-50.
[8]TU J P,MENG L,LIU M S.Friction and wear behavior of Cu-Fe3Al powder metallurgical composites in dry sliding[J].Wear,1998,220(1):72-79.
[9]BHUYAN P,ALAM S N,PANDA D,et al.Synthesis and characterization of Cu-Fe3Al composites using powder metallurgy route[J].Materials Today:Proceedings,2017,A4(2):213-223.
[10]董虎林,彭建洪,李海琴,等.原位法制备颗粒增强铁基复合材料的研究进展[J].热加工工艺,2017,46(22):23-28.
[11]DU X,GAO T,LIU G,et al.In situ synthesizing SiC particles and its strengthening effect on an Al-Si-Cu-Ni-Mg piston alloy[J].Journal of Alloys and Compounds,2017,695:1-8.
[12]郭富强,陈冲.P对原位合成20Mg2Si/Al-Si复合材料组织与性能的影响[J].特种铸造及有色合金,2017,37(9):998-1 001.
[13]王武孝,袁森.铸造法制备颗粒增强金属基复合材料的研究进展[J].铸造技术,2001(2):42-45.
[14]龚红宇,尹衍升,郝春成,等.Fe3Al纳米粒子增强Al2O3陶瓷的制备及性能[J].中国有色金属学报,2003,13(1):188-192.
[15]续晶华,耿浩然,孙佳伟,等.Fe3Al网络结构增强Al基复合材料的磨损特性[J].济南大学学报(自然科学版),2010,24(3):243-246.
[16]谢优华,杨守杰,戴圣龙,等.Zr对超高强铝合金铸态组织及晶粒度的影响[J].中国有色金属学报,2002,12(S1):131-135.
[17]杨守杰,谢优华,朱娜,等.Zr对高强铝合金锻压组织的影响[J].中国有色金属学报,2002,12(S1):152-155.
[18]谢优华,杨守杰,戴圣龙,等.含锆铝合金的力学性能和强化机理[J].中国有色金属学报,2003,13(5):1 192-1 195.
[19]NACHUM S,FLECK N A,ASHBY M F.The microstructural basis for the mechanical properties and electrical resistivity of nanocrystalline Cu-Al2O3[J].Materials Science&Engineering,2010,A527(20):5 065-5 071.
[20]PETTERSEN G,WESTENGEN H,HIER R.Microstructure of apressure die cast magnesium-4%aluminium alloy modified with rare earth additions[J].Materials Science&Engineering,1996,A207(1):115-120.
[21]胡赓祥,蔡珣,戎咏华.材料科学基础(第三版)[M].上海:上海交通大学,2010.
[22]ZHOU S D,ZHANG L D,KONG C,et al.Factors controlling the tensile properties of ultrafine structured Cu-5%Al2O3nanocomposite prepared by high energy mechanical milling and powder compact extrusion[J].Materials Science&Engineering,2013,A584:67-72.
[23]WU Y,LI Y,LU J,et al.Correlations between microstructures and properties of Cu-Ni-Si-Cr alloy[J].Materials Science&Engineering,2018,A731:403-412.
[24]ZOU C,CHEN Z,GUO E,et al.A nano-micro dual-scale particulate-reinforced copper matrix composite with high strength high electrical conductivity and superior wear resistance[J].RSC Advances,2018,54(8):30 777-30 782.