激光引燃自蔓延烧结AlCrFeNiSi_x多孔高熵合金组织及性能
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摘要
为探究Si含量的变化对AlCrFeNiSi系高熵合金组织及性能的影响规律,采用激光诱导自蔓延烧结制备AlCrFeNiSi_x(x=0.2,0.4,0.6,0.8,1.0)多孔高熵合金。利用金相光学显微镜(OM)、扫描电子显微镜(SEM)、能谱分析(EDS)、X射线衍射(XRD)、硬度测试等表征分析了不同Si含量的AlCrFeNiSi_x多孔高熵合金材料显微组织、物相结构、合金密度和孔隙率、维氏硬度及耐磨性能。结果表明,合金组织内部均匀分布微观孔隙,x=0.4时,合金孔隙分布最为均匀。x≤0.4时,合金由BCC相构成,x超过0.6时,合金在BCC相结构的基础上出现FCC相。AlCrFeNiSi0.6高熵合金硬度最大,为522.3 HV0.5;磨损率最小,为73.41mg/cm2;密度最大,为4.354g/cm3;孔隙率最低,为17.1%。x=0.2时,合金孔隙率最大,为39.92%。
The effect law of Si content on the microstructure and properties of the prepared high-entropy alloy was investigated,by changing the Si content and compacting,this paper adopted the laser induced self-propagating high temperature synthesis(SHS)to prepare the porous high-entropy alloy materials of AlCrFeNiSi_x(x=0.2,0.4,0.6,0.8,1.0).The microstructure,phase structure,alloy density and porosity,micro hardness and wear resistance of AlCrFeNiSixporous high-entropy alloy materials with different Si content were characterized by means of metallographic microscope(OM),scanning electron microscopy(SEM),energy dispersive spectroscopy(EDS),energy dispersive spectroscopy(XRD)and hardness test.The results show that the micropores are uniformly distributed in the microstructure of the alloy,and when xis equal to 0.4,the pore distribution of the alloy is the most uniform.If x ≤0.4,the alloy is composed of BCC phase.If xis above 0.6,the alloy exhibits an FCC phase on the basis of BCC phase structure.The high-entropy alloy of AlCrFeNiSi_(0.6) has the highest hardness(522.3 HV0.5)and the maximum density(4.354 g/cm3),and it also has the lowest wear rate(73.41 mg/cm2)and the porosity(17.1%).When xis equal to 0.2,the porosity of the alloy is the highest(39.92%).
The effect law of Si content on the microstructure and properties of the prepared high-entropy alloy was investigated,by changing the Si content and compacting,this paper adopted the laser induced self-propagating high temperature synthesis(SHS)to prepare the porous high-entropy alloy materials of AlCrFeNiSi_x(x=0.2,0.4,0.6,0.8,1.0).The microstructure,phase structure,alloy density and porosity,micro hardness and wear resistance of AlCrFeNiSixporous high-entropy alloy materials with different Si content were characterized by means of metallographic microscope(OM),scanning electron microscopy(SEM),energy dispersive spectroscopy(EDS),energy dispersive spectroscopy(XRD)and hardness test.The results show that the micropores are uniformly distributed in the microstructure of the alloy,and when xis equal to 0.4,the pore distribution of the alloy is the most uniform.If x ≤0.4,the alloy is composed of BCC phase.If xis above 0.6,the alloy exhibits an FCC phase on the basis of BCC phase structure.The high-entropy alloy of AlCrFeNiSi_(0.6) has the highest hardness(522.3 HV0.5)and the maximum density(4.354 g/cm3),and it also has the lowest wear rate(73.41 mg/cm2)and the porosity(17.1%).When xis equal to 0.2,the porosity of the alloy is the highest(39.92%).
引文
[1]YEH J W,CHEN S K,LIN S J,et al.Nanostructured high entropy alloys with multiple principal elements:novel alloy design concepts and outcomes[J].Advance Engineering Material,2004,6(8):299-303.
[2]ZHANG Y.Science and technology in high-entropy alloys[J].Science China Materials,2018,61(1):2-22.
[3]LIANG X B,GUO W,CHEN Y X.Microstructure and mechanical properties of FeCrNiCoCu(B)high-entropy alloy coatings[J].Materials Science Forum,2011,24(2):70-73.
[4]隋艳伟,陈霄,戚继球,等.多主元高熵合金的研究现状与应用展望[J].功能材料,2016,47(5):5050-5054.SUI Yanwei,CHEN Xiao,QI Jiqiu,et al.Research status and application prospect of multi principal element high entropy alloy[J].Functional Materials,2016,47(5):5050-5054.
[5]ZHANG Y,LU Z P,MA S G,et al.Guidelines in predicting phase formation of high-entropy alloys[J].Mrs Communications,2014,4(2):57-62.
[6]ROY U,ROY H,DAOUD H,et al.Fracture toughness and fracture micromechanism in a cast AlCoCrCuFeNi high-entropy alloy system[J].Materials Letters,2014,132:186-189.
[7]CHENG J B,LIANG X B,XU B S,et al.Effect of Nb addition on the structure and mechanical behaveiors of CoCrCuFeNi high-entropy alloy coatings[J].Surface&Coatings Technology,2014,240:184-190.
[8]LI W,LIU P,PETER K,et al.Microstructures and properties of high-entropy alloy films and coatings[J].Materials Research Letters,2018,6(4):199-229.
[9]吴子青,杨旭东,张震,等.2024泡沫铝合金的制备方法与吸能性能[J].有色金属工程,2018,8(2):16-21.WU Ziqing,YANG Xudong,ZHANG Zhen,et al.Preparation methods and energy absorption properties of2024foamed aluminum alloy[J].Nonferrous Metals Engineering,2018,8(2):16-21.
[10]彭超群,江垚,贺跃辉,等.元素粉末冷轧成形及反应合成制备TiAl合金过滤材料[J].中国有色金属学报,2004,14(6):889-895.PENG Chaoqun,JIANG Shui,HE Yuehui,et al.Preparation of TiAl alloy filter materials by cold rolling and reactive synthesis of elemental powders[J].Transactions of Nonferrous Metals Society of China,2004,14(6):889-895.
[11]王建忠,许忠国,敖庆波,等.金属纤维多孔材料力学性能研究现状[J].稀有金属材料与工程,2016,45(6):1636-1640.WANG Jianzhong,XU Zhongguo,AO Qingbo,et al.Research status of mechanical properties of metal fiber porous materials[J].Rare Metal Materials and Engineering,2016,45(6):1636-1640.
[12]QIN J H,CHEN Q,YANG C Y,et al.Research process on property and application of metal porous materials[J].Journal of Alloys and Compounds,2016,654:39-43.
[13]黄国涛,左孝青,孙彦琳,等.多孔金属过滤材料研究进展[J].材料导报,2010,24(增刊2):448-452,456.HUANG Guotao,ZUO Xiaoqing,SUN Yanlin,et al.Research progress of porous metal filtration materials[J].Material Guide,2010,24(S2):448-452,456.
[14]臧纯勇,汤慧萍,王建永.烧结金属多孔材料力学性能的研究进展[J].稀有金属材料与工程,2009,38(增刊1):437-442.ZANG Chunyong,TANG Huiping,WANG Jianyong.Research progress in mechanical properties of sintered metal porous materials[J].Rare Metal Materials and Engineering,2009,38(S1):437-442.
[15]刘用,马胜国,刘英杰,等.AlxCrCuFeNi2多主元高熵合金的摩擦磨损性能[J].材料工程,2018,46(2):99-104.LIU Yong,MA Shengguo,LIU Yingjie,et al.Friction and wear properties of AlxCrCuFeNi2 high-entropy alloys with multi-principal-elements[J].Journal of Material Engineering,2018,46(2):99-104.
[16]农智升,李宏宇,王继杰.AlCrFeNiTi高熵合金热稳定性的研究[J].稀有金属材料与工程,2018,47(1):191-196.NONG Zhisheng,LI Hongyu,WANG Jijie.Study on thermal stability of AlCrFeNiTi high entropy alloy[J].Rare Metal Materials and Engineering,2018,47(1):191-196.
[17]AAYUSH SHARMA,SANKET A D,PETER K L,et al.Crystallization kinetics in AlxCrCoFeNi(0≤x≤40)high-entropy alloys[J].Scripta Materialia,2017,141:54-57.
[2]ZHANG Y.Science and technology in high-entropy alloys[J].Science China Materials,2018,61(1):2-22.
[3]LIANG X B,GUO W,CHEN Y X.Microstructure and mechanical properties of FeCrNiCoCu(B)high-entropy alloy coatings[J].Materials Science Forum,2011,24(2):70-73.
[4]隋艳伟,陈霄,戚继球,等.多主元高熵合金的研究现状与应用展望[J].功能材料,2016,47(5):5050-5054.SUI Yanwei,CHEN Xiao,QI Jiqiu,et al.Research status and application prospect of multi principal element high entropy alloy[J].Functional Materials,2016,47(5):5050-5054.
[5]ZHANG Y,LU Z P,MA S G,et al.Guidelines in predicting phase formation of high-entropy alloys[J].Mrs Communications,2014,4(2):57-62.
[6]ROY U,ROY H,DAOUD H,et al.Fracture toughness and fracture micromechanism in a cast AlCoCrCuFeNi high-entropy alloy system[J].Materials Letters,2014,132:186-189.
[7]CHENG J B,LIANG X B,XU B S,et al.Effect of Nb addition on the structure and mechanical behaveiors of CoCrCuFeNi high-entropy alloy coatings[J].Surface&Coatings Technology,2014,240:184-190.
[8]LI W,LIU P,PETER K,et al.Microstructures and properties of high-entropy alloy films and coatings[J].Materials Research Letters,2018,6(4):199-229.
[9]吴子青,杨旭东,张震,等.2024泡沫铝合金的制备方法与吸能性能[J].有色金属工程,2018,8(2):16-21.WU Ziqing,YANG Xudong,ZHANG Zhen,et al.Preparation methods and energy absorption properties of2024foamed aluminum alloy[J].Nonferrous Metals Engineering,2018,8(2):16-21.
[10]彭超群,江垚,贺跃辉,等.元素粉末冷轧成形及反应合成制备TiAl合金过滤材料[J].中国有色金属学报,2004,14(6):889-895.PENG Chaoqun,JIANG Shui,HE Yuehui,et al.Preparation of TiAl alloy filter materials by cold rolling and reactive synthesis of elemental powders[J].Transactions of Nonferrous Metals Society of China,2004,14(6):889-895.
[11]王建忠,许忠国,敖庆波,等.金属纤维多孔材料力学性能研究现状[J].稀有金属材料与工程,2016,45(6):1636-1640.WANG Jianzhong,XU Zhongguo,AO Qingbo,et al.Research status of mechanical properties of metal fiber porous materials[J].Rare Metal Materials and Engineering,2016,45(6):1636-1640.
[12]QIN J H,CHEN Q,YANG C Y,et al.Research process on property and application of metal porous materials[J].Journal of Alloys and Compounds,2016,654:39-43.
[13]黄国涛,左孝青,孙彦琳,等.多孔金属过滤材料研究进展[J].材料导报,2010,24(增刊2):448-452,456.HUANG Guotao,ZUO Xiaoqing,SUN Yanlin,et al.Research progress of porous metal filtration materials[J].Material Guide,2010,24(S2):448-452,456.
[14]臧纯勇,汤慧萍,王建永.烧结金属多孔材料力学性能的研究进展[J].稀有金属材料与工程,2009,38(增刊1):437-442.ZANG Chunyong,TANG Huiping,WANG Jianyong.Research progress in mechanical properties of sintered metal porous materials[J].Rare Metal Materials and Engineering,2009,38(S1):437-442.
[15]刘用,马胜国,刘英杰,等.AlxCrCuFeNi2多主元高熵合金的摩擦磨损性能[J].材料工程,2018,46(2):99-104.LIU Yong,MA Shengguo,LIU Yingjie,et al.Friction and wear properties of AlxCrCuFeNi2 high-entropy alloys with multi-principal-elements[J].Journal of Material Engineering,2018,46(2):99-104.
[16]农智升,李宏宇,王继杰.AlCrFeNiTi高熵合金热稳定性的研究[J].稀有金属材料与工程,2018,47(1):191-196.NONG Zhisheng,LI Hongyu,WANG Jijie.Study on thermal stability of AlCrFeNiTi high entropy alloy[J].Rare Metal Materials and Engineering,2018,47(1):191-196.
[17]AAYUSH SHARMA,SANKET A D,PETER K L,et al.Crystallization kinetics in AlxCrCoFeNi(0≤x≤40)high-entropy alloys[J].Scripta Materialia,2017,141:54-57.