论文

Re和Ru对镍基单晶高温合金组织偏析的影响

  • 刘刚 ,
  • 刘林 ,
  • 张胜霞 ,
  • 杨初斌 ,
  • 张军 ,
  • 傅恒志
展开
  • 西北工业大学凝固技术国家重点实验室, 西安 710072
刘刚, 男, 1983年生, 博士生

收稿日期: 2012-01-04

  修回日期: 2012-04-16

  网络出版日期: 2012-07-11

基金资助

国家自然科学基金项目50931004, 50827102和50771081及国家重点基础研究发展计划项目2010CB631202和2011CB610406资助

EFFECTS OF Re AND Ru ON MICROSTRUCTURE AND SEGREGATION OF Ni-BASED SINGLE-CRYSTAL SUPERALLOYS

  • LIU Gang ,
  • LIU Lin ,
  • ZHANG Qing-Xia ,
  • YANG Chu-Bin ,
  • ZHANG Jun ,
  • FU Heng-Zhi
Expand
  • State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an 710072

Received date: 2012-01-04

  Revised date: 2012-04-16

  Online published: 2012-07-11

摘要

通过对4种不同Re(3%-6%, 质量分数, 下同)和Ru(0%和3%)含量的镍基单晶高温合金铸态和热处理态组织的观察和成分分析, 研究了Re和Ru对元素偏析以及热处理过程中组织演化的影响. 结果表明, Re和Ru均会加剧铸态试样中的元素偏析, 但经过固溶处理后, Ru对合金元素的残余偏析的影响不大. 随着Re含量的增加和Ru的加入, 热处理态组织中γ' 相尺寸减小, 形貌的立方程度明显增加. 电子探针(EPMA)对成分的测量结果显示, Al, Ta和 Ni偏析于γ'  沉淀相, Re和Cr强烈地偏析于γ'相, 而Ru和W向γ'相的偏析程度则相对较低. Re含量的增加明显增大了Re, Cr, Co和W等元素向γ'相的偏析, 而Ru的加入则使得这些TCP相形成元素向γ'相的偏析程度略有降低.

本文引用格式

刘刚 , 刘林 , 张胜霞 , 杨初斌 , 张军 , 傅恒志 . Re和Ru对镍基单晶高温合金组织偏析的影响[J]. 金属学报, 2012 , 48(7) : 845 -852 . DOI: 10.3724/SP.J.1037.2012.00001

Abstract

The influence of Re and Ru on segregation and microstructure evolution during heat treatment has been investigated in four Ni-based single-crystal superalloys with varied contents of Re (3%-6%, mass fractions) and Ru (0% and 3%). The additions of Re and Ru lead to the more severe segregation of alloying elements in as-cast structures. However, the effects of Ru on as-cast segregation can be neglected after the stepwise solution heat treatments. The additions of Re and Ru lead to the lower γ'-coarsening rate, more cuboidal γ'-morphology and reduced γ'-size. Electron microprobe analysis (EPMA) indicates that Al, Ta and Ni partition to the γ'-precipitates, whereas Re and Cr strongly partition to the γ-matrix. In comparison to Re and Cr, Ru and W show the less tendency to partition to the γ-matrix. Additionally, Re increases the supersaturation of Re, Cr, Co and W in the γ-matrix, whereas Ru only slightly suppresses the partition of these TCP-forming elements to the γ-matrix.

参考文献

[1] Hu Z Q, Liu L R, Jin T, Sun X F. Aeroengine, 2005; 31: 1

(胡壮麒, 刘丽荣, 金涛, 孙晓峰. 航空发动机, 2005; 31: 1)

[2] Pollock T M, Tin S. J Propul Power, 2006; 22: 361

[3] Guo J T. Acta Metall Sin, 2010; 46: 513

(郭建亭. 金属学报, 2010; 46: 513)

[4] Yang C B, Liu L, Zhao X B, Liu G, Zhang J, Fu H Z. Acta Metall Sin, 2011; 47: 1246

(杨初斌, 刘林, 赵新宝, 刘 刚, 张军, 傅恒志. 金属学报, 2011; 47: 1246)

[5] Walston WS, Schaeffer J C, MurphyWH. In: Kissinger R D, Deye D J, Anton D L, Cetel A D, Nathal M V, Pollock T M, Woodford D A, eds., Superalloys 1996, Warrendale: TMS, 1996: 9

[6] Guan X R, Liu E Z, Zheng Z, Yu Y S, Tong J, Zhai Y C. J Mater Sci Technol, 2011; 27: 113

[7] Rae C M F, Reed R C. Acta Mater, 2001; 49: 4113

[8] Retting R, Singer R F. Acta Mater, 2011; 59: 317

[9] Walston S, Cetel A, Mackay R, O’Hara K, Duhl D, Dresfield R. In: Green K A, Pollock T M, Harada H, Howson T E, Reed R C, Schirra J J, Walston S, eds., Superalloys 2004, Warrendale: TMS, 2004: 15

[10] Hobbs R A, Zhang L, Rae C M F, Tin S. Metall Mater Trans, 2008; 39A: 1014

[11] Hedge S R, Kearsey R M, Beddoes J C. Mater Sci Eng, 2010; A527: 5528

[12] Yu J J, Sun X F, Zhao N R, Jin T, Guan H R, Hu Z Q. Mater Sci Eng, 2007; A460–461: 420

[13] Feng Q, Carroll L J, Pollock T M. Metall Mater Trans, 2006; 37A: 1949

[14] Liu G, Liu L, Zhao X B, Ge B M, Zhang J, Fu H Z. Metall Mater Trans, 2011; 42A: 2733

[15] Hu H Q. Solidification Principle of Metals. Beijing: China Machine Press, 2000: 130

(胡汉起. 金属凝固原理. 北京: 机械工业出版社, 2000: 130)

[16] Kablov E N, Petrushin N V. In: Reed R C, Green K A, Caron P, Gabb T P, Fahrmann M G, Huron E S, Woodard S A, eds., Superalloys 2008, Warrendale: TMS, 2008: 901

[17] Karunaratne M S A, Cox D C, Reed R C. In: Green K A, Pollock T M, Harada H, Howson T E, Reed R C, Schirra J J, Walston S, eds., Superalloys 2004, Warrendale: TMS, 2004: 263

[18] Volek A, Singer R F. In: Green K A, Pollock T M, Harada H, Howson T E, Reed R C, Schirra J J, Walston S, eds., Superalloys 2004, Warrendale: TMS, 2004: 713

[19] Lifshitz L M, Slyozov V V. J Phys Chem, 1961; 19: 35

[20] F¨ahrmann M, F¨ahrmann E, Pollock T M, Johnson W C. Metall Mater Trans, 1997; 28A: 1943

[21] Neumeier S, Pyczak F, G¨oken M. In: Reed R C, Green K A, Caron P, Gabb T P, Fahrmann M G, Huron E S, Woodard S A, eds., Superalloys 2008, Warrendale: TMS, 2008: 109

[22] Tian S G, Zhou H H, Zhang J H, Yang H C, Xu Y B, Hu Z Q. Acta Metall Sin, 1998; 6: 591

(田素贵, 周惠华, 张静华, 杨洪才, 徐永波, 胡壮麒. 金属学报, 1998; 6: 591)

[23] Zhang J X, Wang J C, Harada H, Koizumi Y. Acta Mater, 2005; 53: 4623

[24] Caron P, Khan T. Mater Sci Eng, 1983; A61: 173

[25] Ofori A P, Humphreys C J, Jones C N. In: Green K A, Pollock T M, Harada H, Howson T E, Reed R C, Schirra J J, Walston S, eds., Superalloys 2004, Warrendale: TMS, 2004: 787

[26] Carroll L J, Feng Q, Mansfield J F, Pollock T M. Mater Sci Eng, 2007; A457: 292

[27] Volek A, Pyczak F, Singer R F, Mughrabi H. Scr Mater, 2005; 52: 141

[28] Reed R C, Yeh A C, Tin S, Babu S S, Miller M K. Scr Mater, 2004; 51: 327

[29] Yokokawa T, Osawa M, Nishida K, Kobayashi T, Koizumi Y, Harada H. Scr Mater, 2003; 49: 1041

[30] Chen J Y, Zhao B, Feng Q, Cao L M, Sun Z Q. Acta Metall Sin, 2010; 46: 897

(陈晶阳, 赵宾, 冯强, 曹腊梅, 孙祖庆. 金属学报, 2010; 46: 897)
文章导航

/