메뉴 건너뛰기




Volumn 20, Issue 1, 2013, Pages 144-154

Interaction behaviors at the interface between liquid Al-Si and solid Ti-6Al-4V in ultrasonic-assisted brazing in air

Author keywords

Dissolution; Interfacial reaction; Phase transformation; Pit; Ultrasonic vibration

Indexed keywords

BRAZING; CAVITATION; CHEMICAL REACTIONS; DISSOLUTION; FIGHTER AIRCRAFT; LIQUIDS; OXIDE FILMS; PHASE INTERFACES; PHASE TRANSITIONS; SILICON ALLOYS; SURFACE CHEMISTRY; TERNARY ALLOYS; TITANIUM ALLOYS; TITANIUM OXIDES; ULTRASONIC EFFECTS; ULTRASONIC WAVES; VANADIUM ALLOYS;

EID: 84867741846     PISSN: 13504177     EISSN: 18732828     Source Type: Journal    
DOI: 10.1016/j.ultsonch.2012.06.011     Document Type: Article
Times cited : (104)

References (63)
  • 1
    • 0040141714 scopus 로고    scopus 로고
    • Electron beam welding, laser beam welding and gas tungsten arc welding of titanium sheet
    • Y.L. Qi, J. Deng, Q. Hong, and L.Y. Zeng Electron beam welding, laser beam welding and gas tungsten arc welding of titanium sheet Mater. Sci. Eng. A 280 2000 177 181
    • (2000) Mater. Sci. Eng. A , vol.280 , pp. 177-181
    • Qi, Y.L.1    Deng, J.2    Hong, Q.3    Zeng, L.Y.4
  • 2
    • 79957860138 scopus 로고    scopus 로고
    • Fatigue crack growth behavior of gas tungsten arc, electron beam and laser bean welded Ti-6Al-4V alloy
    • T.S. Balasubramanian, V. Balasubramanian, and M.A. Muthu Manicham Fatigue crack growth behavior of gas tungsten arc, electron beam and laser bean welded Ti-6Al-4V alloy Mater. Design 32 2011 4509 4520
    • (2011) Mater. Design , vol.32 , pp. 4509-4520
    • Balasubramanian, T.S.1    Balasubramanian, V.2    Muthu Manicham, M.A.3
  • 3
    • 43049167515 scopus 로고    scopus 로고
    • Development of grain structure in β-phase field during friction stir welding of Ti-6Al-4V alloy
    • S. Mironov, Y. Zhang, Y.S. Sato, and H. Kokawa Development of grain structure in β-phase field during friction stir welding of Ti-6Al-4V alloy Scr. Mater. 59 2008 27 30
    • (2008) Scr. Mater. , vol.59 , pp. 27-30
    • Mironov, S.1    Zhang, Y.2    Sato, Y.S.3    Kokawa, H.4
  • 4
    • 79955550072 scopus 로고    scopus 로고
    • Linear friction welding of Ti-6Al-4V: Modelling and validation
    • R. Turner, J.C. Gebelin, R.M. Ward, and R.C. Reed Linear friction welding of Ti-6Al-4V: modelling and validation Acta Mater. 59 2011 3792 3803
    • (2011) Acta Mater. , vol.59 , pp. 3792-3803
    • Turner, R.1    Gebelin, J.C.2    Ward, R.M.3    Reed, R.C.4
  • 5
    • 58549106763 scopus 로고    scopus 로고
    • Effect of hydrogen on diffusion bonding of commercially pure titanium and hydrogenated Ti6Al4V alloys
    • H. Liu, J. Cao, P. He, and J.C. Feng Effect of hydrogen on diffusion bonding of commercially pure titanium and hydrogenated Ti6Al4V alloys Int. J. Hydrogen Energ. 34 2009 1108 1113
    • (2009) Int. J. Hydrogen Energ. , vol.34 , pp. 1108-1113
    • Liu, H.1    Cao, J.2    He, P.3    Feng, J.C.4
  • 6
    • 41149165873 scopus 로고    scopus 로고
    • Formation process of the bonding joint in Ti/Al diffusion bonding
    • W. Yao, A.P. Wu, G.S. Zou, and J.L. Ren Formation process of the bonding joint in Ti/Al diffusion bonding Mater. Sci. Eng. A 480 2008 456 463
    • (2008) Mater. Sci. Eng. A , vol.480 , pp. 456-463
    • Yao, W.1    Wu, A.P.2    Zou, G.S.3    Ren, J.L.4
  • 7
    • 77349104666 scopus 로고    scopus 로고
    • Transient liquid phase (TLP) bonding of Al7075 to Ti-6Al-4V alloy
    • A. Alhazaa, T.I. Khan, and I. Hap Transient liquid phase (TLP) bonding of Al7075 to Ti-6Al-4V alloy Mater. Character. 61 2010 312 317
    • (2010) Mater. Character. , vol.61 , pp. 312-317
    • Alhazaa, A.1    Khan, T.I.2    Hap, I.3
  • 8
    • 0002398293 scopus 로고
    • Induction brazing of Ti-6Al-4V alloy with amorphous 25Ti-25Zr-50Cu brazing filler metal
    • O. Botstein, A. Schwarzman, and A. Rabinkin Induction brazing of Ti-6Al-4V alloy with amorphous 25Ti-25Zr-50Cu brazing filler metal Mater. Sci. Eng. A 206 1995 14 23
    • (1995) Mater. Sci. Eng. A , vol.206 , pp. 14-23
    • Botstein, O.1    Schwarzman, A.2    Rabinkin, A.3
  • 10
    • 0023995453 scopus 로고
    • Intermetallic compounds formed during brazing of titanium with aluminum filler metals
    • T. Takemoto, and I. Okamoto Intermetallic compounds formed during brazing of titanium with aluminum filler metals J. Mater. Sci. 23 1988 1301 1308
    • (1988) J. Mater. Sci. , vol.23 , pp. 1301-1308
    • Takemoto, T.1    Okamoto, I.2
  • 12
    • 18544381730 scopus 로고    scopus 로고
    • Improvement of wear resistance of Ti-6Al-4V alloy by means of thermal oxidation
    • F. Borgioli, E. Galvanetto, F. Lozzelli, and G. Pradelli Improvement of wear resistance of Ti-6Al-4V alloy by means of thermal oxidation Mater. Lett. 59 2005 2159 2162
    • (2005) Mater. Lett. , vol.59 , pp. 2159-2162
    • Borgioli, F.1    Galvanetto, E.2    Lozzelli, F.3    Pradelli, G.4
  • 13
    • 11244318433 scopus 로고    scopus 로고
    • Surface modification of a Ti-6Al-4V alloy by thermal oxidation
    • H. Guleryuz, and H. Cimenoglu Surface modification of a Ti-6Al-4V alloy by thermal oxidation Surf. Coat. Tech. 192 2005 164 170
    • (2005) Surf. Coat. Tech. , vol.192 , pp. 164-170
    • Guleryuz, H.1    Cimenoglu, H.2
  • 14
    • 29244463424 scopus 로고    scopus 로고
    • Soldering of high strength aluminum alloys with the aid of ultrasonic vibration
    • New Mexico, USA
    • T. Watanabe, Soldering of high strength aluminum alloys with the aid of ultrasonic vibration, in: International Brazing & Soldering Conference Proceedings, New Mexico, USA, 2000, pp. 523-530.
    • (2000) International Brazing & Soldering Conference Proceedings , pp. 523-530
    • Watanabe, T.1
  • 15
    • 0034275150 scopus 로고    scopus 로고
    • A new look at flux-free ultrasonic soldering
    • H.R. Faridi, H.J. Devletian, and P.H. Le A new look at flux-free ultrasonic soldering Welding J. 9 2000 41 45
    • (2000) Welding J. , vol.9 , pp. 41-45
    • Faridi, H.R.1    Devletian, H.J.2    Le, P.H.3
  • 18
    • 0037593474 scopus 로고    scopus 로고
    • Microstructure and bonding mechanism of Al/Ti bonded joint using Al-10Si-1Mg filler metal
    • W.H. Sohn, H.H. Bong, and S.H. Hong Microstructure and bonding mechanism of Al/Ti bonded joint using Al-10Si-1Mg filler metal Mater. Sci. Eng. A 355 2003 231 240
    • (2003) Mater. Sci. Eng. A , vol.355 , pp. 231-240
    • Sohn, W.H.1    Bong, H.H.2    Hong, S.H.3
  • 19
    • 78449233031 scopus 로고    scopus 로고
    • Joining mechanism of Ti/Al dissimilar alloys during laser welding-brazing process
    • S.H. Chen, L.Q. Li, Y.B. Chen, and J.H. Huang Joining mechanism of Ti/Al dissimilar alloys during laser welding-brazing process J. Alloys Compd. 509 2011 891 898
    • (2011) J. Alloys Compd. , vol.509 , pp. 891-898
    • Chen, S.H.1    Li, L.Q.2    Chen, Y.B.3    Huang, J.H.4
  • 20
    • 33745457935 scopus 로고    scopus 로고
    • Reassessment of the binary aluminum-titanium phase diagram
    • J.C. Schuster, and M. Palm Reassessment of the binary aluminum-titanium phase diagram J. Phase Equilib. Diff. 27 2006 255 277
    • (2006) J. Phase Equilib. Diff. , vol.27 , pp. 255-277
    • Schuster, J.C.1    Palm, M.2
  • 21
    • 30844440074 scopus 로고    scopus 로고
    • Effect of B/Ti mass ratio on grain refining of low-titanium aluminum produced by electrolysis
    • M.X. Wang, S.J. Wang, Z.Y. Liu, Z.X. Liu, T.F. Song, and X.R. Zuo Effect of B/Ti mass ratio on grain refining of low-titanium aluminum produced by electrolysis Mater. Sci. Eng. A 416 2006 312 316
    • (2006) Mater. Sci. Eng. A , vol.416 , pp. 312-316
    • Wang, M.X.1    Wang, S.J.2    Liu, Z.Y.3    Liu, Z.X.4    Song, T.F.5    Zuo, X.R.6
  • 22
    • 79956368549 scopus 로고    scopus 로고
    • Interfacial reaction of intermetallic compounds of ultrasonic-assisted brazed joints between dissimilar alloys of Ti-6Al-4V and Al-4Cu-1Mg
    • Z.P. Ma, W.W. Zhao, J.C. Yan, and D.C. Li Interfacial reaction of intermetallic compounds of ultrasonic-assisted brazed joints between dissimilar alloys of Ti-6Al-4V and Al-4Cu-1Mg Ultrason. Sonochem. 18 2011 1062 1067
    • (2011) Ultrason. Sonochem. , vol.18 , pp. 1062-1067
    • Ma, Z.P.1    Zhao, W.W.2    Yan, J.C.3    Li, D.C.4
  • 23
    • 70349320381 scopus 로고    scopus 로고
    • Substitution behavior of Si in Al3Ti (DO22): A first-principles study
    • G.L. Zhu, Y.B. Dai, D. Shu, J. Wang, B.D. Sun, Substitution behavior of Si in Al3Ti (DO22): a first-principles study, J. Phys.: Condens. Matter 21 (2009) 415503-415509.
    • (2009) J. Phys.: Condens. Matter , vol.21 , pp. 415503-415509
    • Zhu, G.L.1    Dai, Y.B.2    Shu, D.3    Wang, J.4    Sun, B.D.5
  • 24
    • 0037680788 scopus 로고    scopus 로고
    • Intermetallic compounds in diffusion couples of Ti with an Al-Si eutectic alloy
    • S.P. Gupta Intermetallic compounds in diffusion couples of Ti with an Al-Si eutectic alloy Mater. Charact. 49 2003 321 330
    • (2003) Mater. Charact. , vol.49 , pp. 321-330
    • Gupta, S.P.1
  • 26
    • 5644262484 scopus 로고
    • The temperature of cavitation
    • E.B. Flint, and K.S. Suslick The temperature of cavitation Science 253 1991 1397 1399
    • (1991) Science , vol.253 , pp. 1397-1399
    • Flint, E.B.1    Suslick, K.S.2
  • 27
    • 0011604063 scopus 로고    scopus 로고
    • Applications of ultrasound to materials chemistry
    • K.S. Suslick, and G.J. Price Applications of ultrasound to materials chemistry Annu. Rev. Mater. Sci. 29 1999 295 326
    • (1999) Annu. Rev. Mater. Sci. , vol.29 , pp. 295-326
    • Suslick, K.S.1    Price, G.J.2
  • 29
    • 0002595114 scopus 로고
    • The chemical effects of ultrasound
    • K.S. Suslick. The chemical effects of ultrasound. Sci. Am. (1989) 80-86.
    • (1989) Sci. Am. , pp. 80-86
    • Suslick, K.S.1
  • 31
    • 43549117721 scopus 로고    scopus 로고
    • Damages on steel surface at the incubation stage of the vibration cavitation erosion in water
    • H.S. Chen, J. Li, D.R. Chen, and J.D. Wang Damages on steel surface at the incubation stage of the vibration cavitation erosion in water Wear 265 2008 692 698
    • (2008) Wear , vol.265 , pp. 692-698
    • Chen, H.S.1    Li, J.2    Chen, D.R.3    Wang, J.D.4
  • 32
    • 0022506549 scopus 로고
    • Cavitation erosion of materials
    • A. Karimi, and J.I. Martin Cavitation erosion of materials Int. Met. Rev. 31 1986 1 26
    • (1986) Int. Met. Rev. , vol.31 , pp. 1-26
    • Karimi, A.1    Martin, J.I.2
  • 33
    • 43549110729 scopus 로고    scopus 로고
    • Pit Clustering in cavitation erosion
    • M. Dular, and A. Osterman Pit Clustering in cavitation erosion Wear 265 2008 811 820
    • (2008) Wear , vol.265 , pp. 811-820
    • Dular, M.1    Osterman, A.2
  • 35
    • 54149091399 scopus 로고    scopus 로고
    • Effect of liquid properties on cavitation erosion in liquid metals
    • S. Hattori, F. Inoue, K. Watashi, and T. Hashimoto Effect of liquid properties on cavitation erosion in liquid metals Wear 265 2008 1649 1654
    • (2008) Wear , vol.265 , pp. 1649-1654
    • Hattori, S.1    Inoue, F.2    Watashi, K.3    Hashimoto, T.4
  • 36
    • 54149114522 scopus 로고    scopus 로고
    • Microstructural effects on the resistance to cavitation erosion of ZrO2 ceramics in water
    • J.J. Lu, K.-H.Z. Gahr, and J. Schneider Microstructural effects on the resistance to cavitation erosion of ZrO2 ceramics in water Wear 265 2008 1680 1686
    • (2008) Wear , vol.265 , pp. 1680-1686
    • Lu, J.J.1    Gahr, K.-H.Z.2    Schneider, J.3
  • 38
    • 34748894370 scopus 로고    scopus 로고
    • Cavitation erosion behavior of ceramics in aqueous solutions
    • D. Niebuhr Cavitation erosion behavior of ceramics in aqueous solutions Wear 263 2007 295 300
    • (2007) Wear , vol.263 , pp. 295-300
    • Niebuhr, D.1
  • 40
    • 0004736820 scopus 로고
    • Cavitation mechanism of ultrasonic melt degassing
    • G.I. Eskin Cavitation mechanism of ultrasonic melt degassing Ultrason. Sonochem. 2 1995 S137 S141
    • (1995) Ultrason. Sonochem. , vol.2
    • Eskin, G.I.1
  • 42
    • 0036020091 scopus 로고    scopus 로고
    • The disappearance of ultrasound contrast bubbles: Observations of bubble dissolution and cavitation nucleation
    • W.S. Chen, T.J. Matula, and L.A. Crum The disappearance of ultrasound contrast bubbles: observations of bubble dissolution and cavitation nucleation Ultrasound Med. Biol. 28 2002 793 803
    • (2002) Ultrasound Med. Biol. , vol.28 , pp. 793-803
    • Chen, W.S.1    Matula, T.J.2    Crum, L.A.3
  • 43
    • 0035799272 scopus 로고    scopus 로고
    • Determination of velocity, size and concentration of ultrasonic cavitation bubbles by the phase-Doppler technique
    • N.A. Tsochatzidis, P. Guiraud, A.M. Wilhelm, and H. Delmas Determination of velocity, size and concentration of ultrasonic cavitation bubbles by the phase-Doppler technique Chem. Eng. Sci. 56 2001 1831 1840
    • (2001) Chem. Eng. Sci. , vol.56 , pp. 1831-1840
    • Tsochatzidis, N.A.1    Guiraud, P.2    Wilhelm, A.M.3    Delmas, H.4
  • 44
    • 28844459890 scopus 로고    scopus 로고
    • Determination of the size distribution of sonoluminescence bubbles in a pulsed acoustic field
    • J. Lee, M. Ashokkumar, S. Kentish, and F. Grieser Determination of the size distribution of sonoluminescence bubbles in a pulsed acoustic field J. Am. Chem. Soc. 127 2005 16810 16811
    • (2005) J. Am. Chem. Soc. , vol.127 , pp. 16810-16811
    • Lee, J.1    Ashokkumar, M.2    Kentish, S.3    Grieser, F.4
  • 45
    • 62549135691 scopus 로고    scopus 로고
    • Effect of power and frequency on bubble-size distributions in acoustic cavitation
    • A. Brotchie, F. Grieser, and M. Ashokkumar Effect of power and frequency on bubble-size distributions in acoustic cavitation Phys. Rev. Lett. 102 2009 0843021 0843024
    • (2009) Phys. Rev. Lett. , vol.102 , pp. 0843021-0843024
    • Brotchie, A.1    Grieser, F.2    Ashokkumar, M.3
  • 46
    • 4944251400 scopus 로고    scopus 로고
    • Degassing of molten aluminum A356 alloy using ultrasonic vibration
    • H.B. Hu, X.G. Jian, T.T. Meek, and Q.Y. Han Degassing of molten aluminum A356 alloy using ultrasonic vibration Mater. Lett. 58 2004 3669 3673
    • (2004) Mater. Lett. , vol.58 , pp. 3669-3673
    • Hu, H.B.1    Jian, X.G.2    Meek, T.T.3    Han, Q.Y.4
  • 47
    • 78649994217 scopus 로고    scopus 로고
    • A novel numerical scheme for the investigation of surface tension effects on growth and collapse stages of cavitation bubbles
    • E. Samiei, M. Shams, and R. Ebrahimi A novel numerical scheme for the investigation of surface tension effects on growth and collapse stages of cavitation bubbles Eur. J. Mech. B/Fluids 30 2011 41 50
    • (2011) Eur. J. Mech. B/Fluids , vol.30 , pp. 41-50
    • Samiei, E.1    Shams, M.2    Ebrahimi, R.3
  • 48
    • 33947391450 scopus 로고
    • Compressibility and structure factors at zero wave vector of liquid aluminum-silicon alloys
    • N.M. Keita, and S. Steinemann Compressibility and structure factors at zero wave vector of liquid aluminum-silicon alloys J. Phys. C Solid State Phys. 11 1978 4635 4641
    • (1978) J. Phys. C Solid State Phys. , vol.11 , pp. 4635-4641
    • Keita, N.M.1    Steinemann, S.2
  • 49
    • 10844281912 scopus 로고    scopus 로고
    • Relationship between cavitation structures and cavitation damage
    • M. Dular, B. Bachert, B. Stoffel, and B. Širok Relationship between cavitation structures and cavitation damage Wear 257 2004 1176 1184
    • (2004) Wear , vol.257 , pp. 1176-1184
    • Dular, M.1    Bachert, B.2    Stoffel, B.3    Širok, B.4
  • 50
    • 0001511515 scopus 로고
    • Surface tension of binary and ternary aluminum alloys of the systems Al-Si-Mg and Al-Zn-Mg
    • J. Goicoechea, C. Garcia-Coordovilla, E. Louis, and A. Pamies Surface tension of binary and ternary aluminum alloys of the systems Al-Si-Mg and Al-Zn-Mg J. Mater. Sci. 27 1992 5247 5252
    • (1992) J. Mater. Sci. , vol.27 , pp. 5247-5252
    • Goicoechea, J.1    Garcia-Coordovilla, C.2    Louis, E.3    Pamies, A.4
  • 51
    • 22444449734 scopus 로고    scopus 로고
    • The viscosity of aluminum and its alloys - A review of data and models
    • T. Dinsdale, and P.N. Quested The viscosity of aluminum and its alloys-a review of data and models J. Mater. Sci. 39 2004 7221 7228
    • (2004) J. Mater. Sci. , vol.39 , pp. 7221-7228
    • Dinsdale, T.1    Quested, P.N.2
  • 53
    • 0036464403 scopus 로고    scopus 로고
    • Phase transformation in austempered ductile iron by microjet impact
    • C.Z. Wu, Y.J. Chen, and T.S. Shih Phase transformation in austempered ductile iron by microjet impact Mater. Charact. 48 2002 43 54
    • (2002) Mater. Charact. , vol.48 , pp. 43-54
    • Wu, C.Z.1    Chen, Y.J.2    Shih, T.S.3
  • 54
  • 55
    • 0032049155 scopus 로고    scopus 로고
    • Cavitation erosion by single laser-produced bubbles
    • A. Philipp, and W. Lauterborn Cavitation erosion by single laser-produced bubbles J. Fluid Mech. 361 1998 75 116
    • (1998) J. Fluid Mech. , vol.361 , pp. 75-116
    • Philipp, A.1    Lauterborn, W.2
  • 56
    • 0036141125 scopus 로고    scopus 로고
    • The final stage of the collapse of a cavitation bubble close to rigid boundary
    • E.A. Brujan, G.S. Keen, A. Vogel, and J.R. Blake The final stage of the collapse of a cavitation bubble close to rigid boundary Phys. Fluid 14 2002 85 92
    • (2002) Phys. Fluid , vol.14 , pp. 85-92
    • Brujan, E.A.1    Keen, G.S.2    Vogel, A.3    Blake, J.R.4
  • 57
    • 0035111774 scopus 로고    scopus 로고
    • Review durability of materials in molten aluminum alloys
    • M. Yan, and Z. Fan Review durability of materials in molten aluminum alloys J. Mater. Sci. 36 2001 285 295
    • (2001) J. Mater. Sci. , vol.36 , pp. 285-295
    • Yan, M.1    Fan, Z.2
  • 58
    • 0033204006 scopus 로고    scopus 로고
    • Growth behavior of intermetallic compound layer in sandwich-type Ti/Al diffusion couples inserted with Al-Si-Mg alloy foil
    • T.W. Lee, I.K. Kim, C.H. Lee, and J.H. Kim Growth behavior of intermetallic compound layer in sandwich-type Ti/Al diffusion couples inserted with Al-Si-Mg alloy foil J. Mater. Sci. Lett. 18 1999 1599 1602
    • (1999) J. Mater. Sci. Lett. , vol.18 , pp. 1599-1602
    • Lee, T.W.1    Kim, I.K.2    Lee, C.H.3    Kim, J.H.4
  • 59
    • 14744293781 scopus 로고    scopus 로고
    • Thermodynamic aspects of grain refinement of Al-Si alloys using Ti and B
    • J. Gröbner, Djordje Mirković, and R. Schmid-Fetzer Thermodynamic aspects of grain refinement of Al-Si alloys using Ti and B Mater. Sci. Eng. A 395 2005 10 21
    • (2005) Mater. Sci. Eng. A , vol.395 , pp. 10-21
    • Gröbner, J.1    Mirković, D.2    Schmid-Fetzer, R.3
  • 60
    • 77149140106 scopus 로고    scopus 로고
    • Interfacial reaction mode and its influence on tensile strength in laser joining Al alloy to Ti alloy
    • S.H. Chen, L.Q. Li, and Y.B. Chen Interfacial reaction mode and its influence on tensile strength in laser joining Al alloy to Ti alloy Mater. Sci. Technol. 26 2010 230 235
    • (2010) Mater. Sci. Technol. , vol.26 , pp. 230-235
    • Chen, S.H.1    Li, L.Q.2    Chen, Y.B.3
  • 61
    • 76049106168 scopus 로고    scopus 로고
    • Si diffusion behavior during laser welding-brazing of Al alloy and Ti alloy with Al-12Si filler wire
    • S.H. Chen, L.Q. Li, Y.B. Chen, and D.J. Liu Si diffusion behavior during laser welding-brazing of Al alloy and Ti alloy with Al-12Si filler wire Trans. Nonferrous Met. Soc. China 20 2010 64 70
    • (2010) Trans. Nonferrous Met. Soc. China , vol.20 , pp. 64-70
    • Chen, S.H.1    Li, L.Q.2    Chen, Y.B.3    Liu, D.J.4
  • 63
    • 0019481844 scopus 로고
    • Effect of vibration during solidification
    • J. Campbell Effect of vibration during solidification Int. Met. Rev. 26 1981 71 108
    • (1981) Int. Met. Rev. , vol.26 , pp. 71-108
    • Campbell, J.1


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.