N5基体与NiCrAlY粘结层界面元素互扩散行为研究
|
摘要
采用EB-PVD技术在镍基合金ReneN5基体表面沉积NiCrAlY粘结层,并对试样进行1000℃不同时间的恒温氧化处理,通过SEM、EDS、XRD研究了基体与粘接层界面元素互扩散行为和反应区的形成机制。结果表明:在1000℃条件下,NiCrAlY粘结层中的Al、Cr元素会向N5基体扩散,形成以β-NiAl和α-Cr相为主的互扩散反应区;而N5基体中的Ni元素则会向NiCrAlY粘结层扩散,形成以γ′-Ni_3Al相为主的二次反应区和以难熔金属为主的TCP相。
The NiCrAlY bond coatings were deposited on Ni-based superalloy(N5) by EB-PVD technique, and the sample was oxidized atconstant temperature of 1000 °C for different time. Interdiffusion behavior of interface between substrate and bond coat, as well as theformation mechanism of reaction zone was analyzed by SEM, EDS and XRD. The result shows that the elements of Al and Cr in theNiCrAlY coating are diffused to the N5 substrate to form an interdiffusion reaction zone dominated by β-NiAl phase and α-Cr phase; andthe Ni element in the N5 substrate is diffused to the NiCrAlY coatings, forming the secondary reaction zone composed of γ′-Ni_3Al and TCPphase composed of refractory metal.
The NiCrAlY bond coatings were deposited on Ni-based superalloy(N5) by EB-PVD technique, and the sample was oxidized atconstant temperature of 1000 °C for different time. Interdiffusion behavior of interface between substrate and bond coat, as well as theformation mechanism of reaction zone was analyzed by SEM, EDS and XRD. The result shows that the elements of Al and Cr in theNiCrAlY coating are diffused to the N5 substrate to form an interdiffusion reaction zone dominated by β-NiAl phase and α-Cr phase; andthe Ni element in the N5 substrate is diffused to the NiCrAlY coatings, forming the secondary reaction zone composed of γ′-Ni_3Al and TCPphase composed of refractory metal.
引文
[1]Xiong Yuming(熊玉明),Li Mingsheng(李明升),Li Songlin(李松林)et al.Materials Science and Engineering of Powder Metallurgy(粉末冶金材料科学与工程)[J],2007,12(2):63
[2]Chang Fa(常发).Rare Metal Materials and Engineering(稀有金属材料与工程)[J],2017,46(3):577
[3]Padture N P,Gell M,Jordan E H et al.Materials Science[J],2002,296(5566):280
[4]Chen W R,Wu X,Marple B R et al.Surface Coatings Technology[J],2008,202(12):2677
[5]Daroonparvar M,Yajid M A M,Yusof N M et al.Journal of Alloys&Compounds[J],2013,571(18):205
[6]Toscano J,Vaβen R,Gil A et al.Surface&Coatings Technology[J],2006,201(7):3906
[7]Das D K,Gleeson B,Murphy K S et al.Materials Science and Technology[J],2009,25(2):300
[8]Dong Jianmin(董建民),Li Jiarong(李嘉荣),Mou Rende(牟仁德)et al.Journal of Materials Engineering(材料工程)[J],2014(6):51
[9]Wang J,Chen M,Yang L et al.Corrosion Science[J],2015,98:530
[10]Gudmundsson B,Jacobson B E.Materials Science and Engineering[J],1988,100(88):207
[11]Bai Z,Li D,Peng H et al.Materials International[J],2012,22(2):146
[12]Richard C S,Béranger G,Lu J et al.Surface&Coatings Technology[J],1996,82:99
[13]Hu Anguang(胡安广).Thesis for Doctorate(博士论文)[D].Changchun:Jilin University,1991
[14]Walston W S,Schaeffer J C,Murphy W H et al.Superalloys1996[C].Warrendale,PA,USA:TMS,1996:9
[15]Das D K,Murphy K S,Ma S et al.Metallurgical and Materials Transactions A[J],2008,39(7):1647
[16]Wilson B C,Hickman J A,Fuchs G E et al.JOM[J],2003,55(3):35
[17]Rae C M F,Hook M S,Reed R C et al.Materials Science&Engineering A[J],2005,396(12):231
[2]Chang Fa(常发).Rare Metal Materials and Engineering(稀有金属材料与工程)[J],2017,46(3):577
[3]Padture N P,Gell M,Jordan E H et al.Materials Science[J],2002,296(5566):280
[4]Chen W R,Wu X,Marple B R et al.Surface Coatings Technology[J],2008,202(12):2677
[5]Daroonparvar M,Yajid M A M,Yusof N M et al.Journal of Alloys&Compounds[J],2013,571(18):205
[6]Toscano J,Vaβen R,Gil A et al.Surface&Coatings Technology[J],2006,201(7):3906
[7]Das D K,Gleeson B,Murphy K S et al.Materials Science and Technology[J],2009,25(2):300
[8]Dong Jianmin(董建民),Li Jiarong(李嘉荣),Mou Rende(牟仁德)et al.Journal of Materials Engineering(材料工程)[J],2014(6):51
[9]Wang J,Chen M,Yang L et al.Corrosion Science[J],2015,98:530
[10]Gudmundsson B,Jacobson B E.Materials Science and Engineering[J],1988,100(88):207
[11]Bai Z,Li D,Peng H et al.Materials International[J],2012,22(2):146
[12]Richard C S,Béranger G,Lu J et al.Surface&Coatings Technology[J],1996,82:99
[13]Hu Anguang(胡安广).Thesis for Doctorate(博士论文)[D].Changchun:Jilin University,1991
[14]Walston W S,Schaeffer J C,Murphy W H et al.Superalloys1996[C].Warrendale,PA,USA:TMS,1996:9
[15]Das D K,Murphy K S,Ma S et al.Metallurgical and Materials Transactions A[J],2008,39(7):1647
[16]Wilson B C,Hickman J A,Fuchs G E et al.JOM[J],2003,55(3):35
[17]Rae C M F,Hook M S,Reed R C et al.Materials Science&Engineering A[J],2005,396(12):231