Material Engineering and Mechanical Manufacturing

Influence of CrON diffusion barrier on elements inter-diffusion between NbCrAl coating and Nb-based superalloy

  • XU An ,
  • ZHOU Min ,
  • YANG Yang ,
  • QIN Zehua ,
  • LI Weizhou
Expand
  • School of Materials Science and Engineering, Guangxi University, Nanning 530004, China

Received date: 2014-10-27

  Revised date: 2015-02-06

  Online published: 2015-02-11

Supported by

National Natural Science Foundation of China (51371059,51361003,51001032);Guangxi National Natural Science Foundation (2014GXNSFCA118013,0731013);High Level Innovation Teams from Universities of Guangxi (the Second Batch);Guangxi National Natural Science Fund for Innovative Research Team (2011GXNSFF018001)

Abstract

NbCrAl coatings with and without CrON diffusion barrier (DB) are prepared on C103 Nb-based superalloy by magnetron sputtering technique. The element diffusion behavior of two kinds of the coatings during vacuum heat treatment at 900℃ and 1000℃ is investigated. The results indicate that the as-deposited NbCrAl coating is composed of Cr2Nb and AlNb2 with amorphous phases. After vacuum heat treatment, NbAl3 and (Nb,Cr) precipitated phases are formed. When the heat treatment temperature is increased to 1000℃ from 900℃, the rate of diffusion of elements in the NbCrAl coating becomes accelerated. Cr and Al elements in the samples without a DB diffuse to C103 substrate are 2.76wt% and 1.21wt%, while in the samples with a DB are only 2.52wt% and 0.84wt%. CrON diffusion barrier maintains continuous and has good adhesion to the coating and substrate as well. During high-temperature treatment, the CrON diffusion barrier, which is mainly composed of Cr2O3 and Al2O3 phases with close-packed hexagonal structure phases, effectively suppresses the elements inter-diffusion between the coating and substrate.

Cite this article

XU An , ZHOU Min , YANG Yang , QIN Zehua , LI Weizhou . Influence of CrON diffusion barrier on elements inter-diffusion between NbCrAl coating and Nb-based superalloy[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2015 , 36(11) : 3734 -3741 . DOI: 10.7527/S1000-6893.2015.0043

References

[1] Zhang H, Yuan S N, Zhou C G, et al. Research progress on ultra-high-temperature Nb-silicide-based alloys[J]. Acta Aeronautica et Astronautica Sinica, 2014, 35(10):2756-2766(in Chinese).张虎,原赛男,周春根,等. Nb-Si金属间化合物基超高温合金研究进展[J].航空学报,2014, 35(10):2756-2766.
[2] Mastanaiah M, Madhusudhan R G, Satya P K, et al. An investigation on microstructures and mechanical properties of explosive cladded C103 niobium alloy over C263 nimonic alloy[J]. Journal of Materials Processing Technology, 2014,214(11):2316-2324.
[3] Perepezko J H. The hotter the engine, the better[J]. Science, 2009, 326(5956):1068-1069.
[4] Li G M, Liu J, Sha J B. Effect of Si and Ti on microstructure and mechanical properties of Nb-6Hf-4Zr-2B alloy at room temperature[J]. Acta Aeronautica et Astronautica Sinica, 2010, 31(8):1688-1694(in Chinese).李国民,刘军,沙江波. Si和Ti对Nb-6Hf-4Zr-2B合金组织和室温力学能力的影响[J].航空学报, 2010, 31(8):1688-1694.
[5] Yin L, Yi D Q, Xiao L R, et al. Research progress in high temperature oxidation resistance of Nb and Nb-based alloys[J]. Materials Protection, 2003, 36(8):4-8(in Chinese).殷磊,易丹青,肖来荣,等.铌及铌合金高温抗氧化研究进展[J].材料保护, 2003, 36(8):4-8.
[6] Ajdelsztajn L, Picas J A, Kim G E, et al. Oxidation behavior of HVOF sprayed nanocrystalline NiCrAlY powder[J]. Materials Science and Engineering A, 2002, 338(1-2):33-43.
[7] Li Y, Li C J, Yang G J, et al. Thermal fatigue behaviour of thermal barrier coatings with the MCrAlY bond coats by cold spraying and low-pressure plasma spraying[J]. Surface and Coatings Technology, 2010, 205(7):2225-2233.
[8] Tian X D, Guo X P. Structure of Al-modified silicide coatings on an Nb-based ultrahigh temperature alloy prepared by pack cementation techniques[J]. Surface and Coatings Technology, 2009, 203(9):1161-1166.
[9] Zhao J C, Jackson M R, Peluso L A. Evaluation of phase relations in the Nb-Cr-Al system at 1000℃ using a diffusion-multiple approach[J]. Journal of Phase Equilibria and Diffusion, 2004, 25(2):152-159.
[10] Hebsur M G, Stephens J R. Niobium-aluminum base alloys having improved, high temperature oxidation resistance[P]. United States:US4983358, 1991-06-10.
[11] Shigeji T, Hideaki T, Tooru M. Influence of additional elements on the oxidation behavior of Nb-Al-Cr base alloys[J]. Materials Science Forum, 2006, 522-523:625-632.
[12] Wang J, Peng H, Chen G Z, et al. Impact of Ru layer on diffusion behavior between NiCoCrAlY and single crystal superalloy DD6[J]. Acta Aeronautica et Astronautica Sinica, 2011, 32(4):758-764(in Chinese).王娟,彭徽,陈国忠,等. Ru过渡层对NiCoCrAlY涂层与DD6单晶高温合金界面扩散行为的影响[J].航空学报, 2011, 32(4):758-764.
[13] Li S, Song J, Zhou C, et al. Microstructure evolution of NiCoCrAlY overlayer coating for Ni3Al based alloy IC6 turbine vane during long term engine test[J]. Intermetallics, 2005, 13(3-4):309-314.
[14] Guo H B, Gong S K, Xu H B. Research progress on new high/ultra-high temperature thermal barrier coatings and processing technologies[J]. Acta Aeronautica et Astronautica Sinica, 2014, 35(10):2722-2732(in Chinese).郭洪波,宫声凯,徐惠彬.新型高温/超高温热障涂层及制备技术研究进展[J].航空学报, 2014, 35(10):2722-2732.
[15] Nicholls J R. Advances in coating design for high-performance gas turbine[J]. MRS Bulletin, 2003, 28(9):659-670.
[16] Li W Z, Wang Q M, Gong J, et al. Oxidation of a NiCrAlYSi overlayer with or without a diffusion barrier deposited by one-step arc ion plating[J]. Corrosion Science, 2010, 52(5):1753-1761.
[17] Wang Q M, Wu Y N, Guo M H, et al. Ion-plated Al-O-N and Cr-O-N films on Ni-base superalloys as diffusion barriers[J]. Surface and Coatings Technology, 2005, 197(1):68-76.
[18] Li W Z, Yao Y, Wang Q M, et al. Improvement of oxidation-resistance of NiCrAlY coatings by application of CrN or CrON interlayer[J]. Journal of Materials Research, 2008, 23(2):341-352.
[19] Li W Z, Yi D Q, Li Y Q, et al. Effects of the constitution of CrON diffusion barrier on the oxidation resistance and interfacial fracture of duplex coating system[J]. Journal of Alloys and Compounds, 2012, 518:86-95.
[20] Knotek O, Löffler F, Beele W. Diffusion barrier design against rapid interdiffusion of MCrAlY and Ni-base material[J]. Surface and Coatings Technology, 1993, 61(1-3):6-13.
[21] Knotek O, Lugscheider E, Löffler F, et al. Diffusion barrier coatings with active bonding, designed for gas turbine blades[J]. Surface and Coatings Technology, 1994, 68-69:22-26.
[22] Fontalvo G A, Terziysk V, Mitterer C. High temperature tribological behavior of sputtered NbNx thin films[J]. Surface and Coatings Technology, 2007, 202(4-7):1017-1022.
[23] Li W Z, Li Y Q, Yi D Q, et al. Microstructural evolution and failure mechanism of NiCrAlY coating systems during different cycled oxidation[J]. The Chinese Journal of Nonferrous Metals, 2013, 23(2):417-425(in Chinese).李伟洲,李月巧,易丹青,等.不同冷热循环条件下NiCrAlY涂层体系的微观组织演变规律及失效机理[J].中国有色金属学报, 2013, 23(2):417-425.
[24] Li T F. High temperature oxidation and hot corrosion of metal[M]. Beijing:Chemical Industry Press, 2003:109-213(in Chinese).李铁藩.金属高温氧化与热腐蚀[M].北京:化学工业出版社, 2003:109-213.
[25] Bhatt Y J, Kumar L, Patil R V, et al. Diffusion studies in Hf-Mo, Zr-Mo, Cr-Nb, Cr-Ta and Th-Re systems above 1900 K[J]. Journal of Alloys and Compounds, 2000, 302(1-2):177-186.
[26] Cermak J, Gazda A, Rothova V. Interdiffusion in ternary Ni3Al/Ni3Al-X diffusion couples with X=Cr, Fe, Nb and Ti[J]. Intermetallics, 2003, 11(9):939-946.
[27] Li Y Q, Li W Z, Liu Q H, et al. Microstructures and initial oxidation of Nb-Cr based coatings systems[J]. The Chinese Journal of Nonferrous Metals, 2013, 23(11):3171-3178(in Chinese).李月巧,李伟洲,刘会群,等. Nb-Cr基涂层的微观结构及初期氧化[J].中国有色金属学报, 2013, 23(11):3171-3178.

Outlines

/