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材料工程  2010 

K403镍基合金Al-Cr涂层组织转变及取向与应力的影响

, PP. 55-60

Keywords: 单晶高温合金,Al-Cr涂层,晶体取向,K403,σ相

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Abstract:

用物理冶金常用的分析手段对不同取向的K403单晶和多晶材料渗态和高温长时热暴露条件下Al-Cr涂层的组织转变进行分析,研究应力对涂层组织的影响.结果表明,在900℃下,Al-Cr涂层组织稳定性极佳,可经受5000h热暴露.晶体取向对涂层的形成与转变无明显影响,但对σ相的排列与取向有明显作用.此外,应力加速了涂层的增厚和析出相的沉淀与粗化.在1050℃以上,涂层的β→γ转变在1000h内可完成,包括,σM6C相在内的析出相明显粗化,造成涂层组织严重损伤.

References

[1]  HAN Y F,XING Z P,CHATURVEDI M C,et al.Oxidation resistance and microstructure of Ni-Cr-Al-Y coating on Ni3 Al based alloy[J].Mater Sci&Eng,1997,A239-240:871-876.
[2]  GOWARD G W.Progress in coatings for gas turbine airfoils[J].Surf Coating Techn,1998,108-109:73-79.
[3]  LEVINE S R.Cyclic furnace and high-velocity oxidation of an aluminide-coated high strength nickel alloy B-1900[R] .NASA TMX-2370,1971.
[4]  GOW ARD G W,BOONE D H,GIGGINS C S.Formation and degredation mechanisms of aluminide coating on nickel-base superalloy[J].Trans ASM,1967,60(2):228-241.
[5]  REDDEN T K.Ni-Al coating-base metal interactions in several nickel-base alloys[J].Trans AIME,1968,242(8):1695-1702.
[6]  ZHENG Y,CAI Y,MO L,et al.Formation of Si-containing barrier in A1-Si coatings and its effect on protective capability of superalloy[J].Journal of Mater Eng,1991,(1):39-46.
[7]  张春晓,李树索,韩雅芳.防护涂层对Ni3Al基合金IC6AE微观组织和抗腐蚀性能的影响[J].航空材料学报,2006,26(3):41-46.
[8]  GOULETTE M J.The future costs less-high temperature materials from an aero-engine perspective[A].KISSINGER R D,DEY D J,ANTON D L,et al.Superalloys 1996[C].Warrendale:TMS,1996.3-8.
[9]  SETH B B.Superalloys-the utility gas turbine perspective[A].POLLOCK T M,KISSINGER P D,GREEN K A,et al.Superalloys 2000[C].Warrendale:TMS,2000.3-16.
[10]  WALSTON W S.Coating and surface technogogies for turbine airfoils[A].GREEN K A,POLLOCK T M,HARADA H,et al.Superalloys 2004[C].Warrendale:TMS,2004.579-588.
[11]  郑亮,肖程波,唐定中,等.高Cr铸造Ni基高温合金K4648的显微组织[J].中国有色金属学报,2009,19(4):662-669.
[12]  郑亮,肖程波,唐定中,等.高Cr铸造镍基高温合金K4648凝固行为的研究[J].稀有金属材料与工程,2008,37(9):1539-1544.
[13]  LOVELL C E,LEVINE S R,GRISAFFE S J.Environmental effects and surface protection of high temperature alloy:a review NASA-Lewis programs[A].Proceedings of the 1974 Gas Turbine Materials in the Marine Environment Conference[C].Maine:ASM,1974.35-55.
[14]  KAUFMAN M.Examination of the influence of coatings on thin superalloy sections[R] .NASACR-121115,1972.
[15]  CLELLAND J,TAYLOR A F,WORTLEY L.Material and coating developments in support of future marine aero gas turbine for the Royal Navy[A].Proceedings of the 1974 Gas Turbine Materials in the MarineEnvironment Conference[C].Maine:ASM,1974.397-432.

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