于晶晶,王清,李晓娜,石尧,董闯,冀春俊,徐香明

• 1:大连理工大学三束材料改性教育部重点实验室
• 2:大连理工大学能源与动力学院
• 3:中石化胜利油田物探研究院

摘要(Abstract)：

应用"团簇加连接原子"结构模型对镍基高温合金成分进行了解析,指出了这些合金均源自基础团簇式[Cr-Ni12]Cr3,其中[Cr-Ni12]为在FCC结构中以Cr为心的立方八面体团簇,搭配以3个Cr作为连接原子。根据合金化组元与基体Ni的混合焓大小确定其在团簇式中的位置,最终形成多元合金化后的团簇式[(Al/Ti/Nb)-(Ni/Fe/Co)12](Cr/Al)3。采用铜模吸铸快冷技术制备10 mm的合金棒,并对其在1373 K保温2 h后空冷。结果表明团簇式中含有一个Al时会有细小的γ'相析出,含有两个Al时[Al-(Ni10Fe2)](Cr2Al)合金中γ'相球形析出,粒子尺寸为30～60 nm;硬度测试表明前者强化效果不明显,后者由于γ'粒子长大使得合金硬度提高。当Al/Ti/Nb等比例占据团簇心部时,[(Al1/3Ti1/3Nb1/3)-(Ni10Fe2)]Cr3合金的硬度最高,为2.86 GPa。

关键词(KeyWords)： 镍基高温合金;γ'析出相;“团簇加连接原子”模型

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金资助项目(51171035,50901012)

作者(Author): 于晶晶,王清,李晓娜,石尧,董闯,冀春俊,徐香明

DOI: 10.13289/j.issn.1009-6264.2013.08.026

参考文献(References)：

• [1]Reed R C,The Superalloys:Fundamentals and Applications[M].London:Cambridge University Press,2006.
• [2]陈国良.高温合金学[M].北京:冶金工业出版社.1988.
• [3]张济山,崔华,胡壮麒,等.应用d-电子合金设计理论发展新型抗热腐蚀单晶镍基高温合金[J].金属学报,1993,29(7):289-296.ZHANG Ji-shan,CUI Hua,HU Zhuang-qi,et al.Application of d-electron alloy design theory to development of hot corrosion resistant Ni-base singlecrystal superalloys[J]Acta Metallurgica Sinica,1993,29(7):289-296.
• [4]Morinaga M,Yukawa N,Ezaki H,et al.New PHACOMP and its applications to alloy design(phase computation)in the Fifth International Symposium[C]//Champion,PA,United States:The Metallurgical Society,1984.
• [5]张杰,王清,王英敏,等.含Fe和Mn的Ni30Cu70固溶体团簇模型与耐蚀性研究[J].金属学报,2009,45(11):1390-1395.ZHANG Jie,WANG Qing,WANG Ying-min,et al.Study on the cluster-base model of Ni30Cu70 solid solution with Fe and Mn and its corrosionresistance[J]Acta Metallurgica Sinica,2009,45(11):1390-1395.
• [6]马仁涛,郝传璞,王清,等.Ti-Mo-Nb-Zr BCC低弹固溶体合金的团簇加连接原子模型及其成分设计[J].金属学报,2010,46(9):1034-1040.MA Ren-tao,HAO Chuan-pu,Wang Qing,et al.Cluster-plus-glue-atom model and composition design of BCC Ti-Mo-Nb-Zr solid solution alloys withlow young s modulus[J]Acta Metallurgica Sinica,2010,46(9):1034-1040.
• [7]Wang H B,Wang Q,Dong C,et al.Composition design for Laves phase-related body-centered cubic-V solid solution alloys with large hydrogen storagecapacities[J].Journal of Physics:Condensed Matter,2008,20(11):114110-1-5.
• [8]Singh J,Singh P,Rattan S K,et al.Strain field due to substitutional transition-metal impurities in bcc metals:Application to dilute vanadium alloys[J].Physics Review B,1994,49(2):932-943.
• [9]ZHANG J,WANG Q,Wang Y M,et al.Revelation of solid solubility limit Fe/Ni=1/12 in corrosion resistant Cu-Ni alloys and relevant cluster model[J].Journal of Materials Research,2010,25(2):9.
• [10]郝传璞,马仁涛,王清,等.体心立方固溶体合金中的“团簇+连接原子”结构模型[J].物理学报,2011,60(11):116101.HAO Chuan-pu,MA Ren-tao,WANG Qing,et al.Cluster-plus-glue-atom model in bcc solid solution alloys[J].Acta Physica Sinica,2011,60(11):116101.
• [11]Dong C,Wang Q,Qiang J B,et al.From clusters to phase diagrams:composition rules of quasicrystals and bulk metallic glasses[J].Journal of PhysicsD:Applied Physics,2007,40(15):R273-R291.
• [12]Takeuchi A,Inoue A.Calculations of mixing enthalpy and mismatch entropy for ternary amorphous alloys[J].Materials Transactions JIM,2000,41:1372-1378.
• [13]GB/T14992-2005,高温合金和金属间化合物高温材料的分类和牌号[S].
• [14]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].Advanced Engineering Materials,2004,6(5):299-303.
• [15]Gerold V,Haberkorn H.On the critical resolved shear stress of solid solutions containing coherent precipitates[J].Physica Status Solidi,1966,16:675.
• [16]Pellissier G E,Purdy S M.Stereology and quantitative metallography[S].American Society for Testing and Materials,Philadelphia,1972.
• [17]郭建亭.高温合金材料学[M].北京:科学出版社,2008.

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